Release version 4.3.18.RELEASE

Remove outdated HandlerAdapter references from annotation javadoc
Includes removal of PathVariable's MultiValueMap support claim. Issue: SPR-16936
2026-09-18 00:49:02 +00:00 · 2018-06-12 14:49:39 +00:00 · 2018-06-12 11:48:45 +02:00 · 2018-06-11 19:18:28 +02:00 · 2018-06-11 17:04:18 +02:00 · 2018-06-11 17:00:51 +02:00
1863 changed files with 49640 additions and 31484 deletions
@@ -88,15 +88,14 @@ present in the framework.
 1. Preserve existing formatting; i.e. do not reformat code for its own sake
 1. Search the codebase using `git grep` and other tools to discover common
    naming conventions, etc.
-1. Latin-1 (ISO-8859-1) encoding for Java sources; use `native2ascii` to convert
-    if necessary
+1. UTF-8 encoding for Java sources


 ### Add Apache license header to all new classes

 ```java
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -124,11 +123,11 @@ modified a file in 2015 whose header still reads:
 * Copyright 2002-2011 the original author or authors.
 ```

-Then be sure to update it to 2015 accordingly:
+Then be sure to update it to 2016 accordingly:

 ```java
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 ```

 ### Use @since tags for newly-added public API types and methods
@@ -32,51 +32,52 @@ configure(allprojects) { project ->
 	version = qualifyVersionIfNecessary(version)

 	ext.aspectjVersion       = "1.8.9"
-	ext.caffeineVersion      = "2.3.1"
+	ext.caffeineVersion      = "2.3.5"
 	ext.eclipselinkVersion   = "2.4.2"
-	ext.ehcacheVersion       = "2.10.2"
+	ext.ehcacheVersion       = "2.10.4"
 	ext.ehcachejcacheVersion = "1.0.1"
-	ext.ehcache3Version      = "3.1.0"
+	ext.ehcache3Version      = "3.1.4"
 	ext.ejbVersion           = "3.0"
-	ext.fileuploadVersion    = "1.3.2"
+	ext.fileuploadVersion    = "1.3.3"
 	ext.freemarkerVersion    = "2.3.23"
-	ext.groovyVersion        = "2.4.7"
-	ext.gsonVersion          = "2.7"
-	ext.guavaVersion         = "19.0"
+	ext.groovyVersion        = "2.4.15"
+	ext.gsonVersion          = "2.8.2"
+	ext.guavaVersion         = "20.0"
 	ext.hamcrestVersion      = "1.3"
 	ext.hibernate3Version    = "3.6.10.Final"
 	ext.hibernate4Version    = "4.3.11.Final"
-	ext.hibernate5Version    = "5.2.1.Final"
+	ext.hibernate5Version    = "5.2.10.Final"
 	ext.hibval4Version       = "4.3.2.Final"
-	ext.hibval5Version       = "5.2.4.Final"
+	ext.hibval5Version       = "5.2.5.Final"
 	ext.hsqldbVersion        = "2.3.4"
-	ext.httpasyncVersion     = "4.1.2"
-	ext.httpclientVersion    = "4.5.2"
-	ext.jackson2Version      = "2.8.0.rc2"
+	ext.httpasyncVersion     = "4.1.3"
+	ext.httpclientVersion    = "4.5.5"
+	ext.jackson2Version      = "2.8.11.1"
 	ext.jasperreportsVersion = "6.2.1"  // our tests fail with JR-internal NPEs against 6.2.2 and higher
-	ext.javamailVersion      = "1.5.5"
-	ext.jettyVersion         = "9.3.10.v20160621"
-	ext.jodaVersion          = "2.9.4"
-	ext.jrubyVersion         = "1.7.25"  // JRuby 9000 only supported through JSR-223 (StandardScriptFactory)
+	ext.javamailVersion      = "1.5.6"
+	ext.jettyVersion         = "9.3.14.v20161028"  // as of 9.3.15, Jetty has hard Servlet 3.1 requirement
+	ext.jetty94Version       = "9.4.6.v20170531"  // for spring-websocket support, optimized for Jetty 9.4
+	ext.jodaVersion          = "2.9.9"
+	ext.jrubyVersion         = "1.7.27"  // JRuby 9000 primarily supported through JSR-223 (StandardScriptFactory)
 	ext.jtaVersion           = "1.2"
 	ext.junitVersion         = "4.12"
 	ext.log4jVersion         = "1.2.17"
-	ext.nettyVersion         = "4.1.1.Final"
+	ext.nettyVersion         = "4.1.25.Final"
 	ext.okhttpVersion        = "2.7.5"
-	ext.okhttp3Version       = "3.3.1"
-	ext.openjpaVersion       = "2.4.1"
+	ext.okhttp3Version       = "3.8.1"
+	ext.openjpaVersion       = "2.4.2"
 	ext.poiVersion           = "3.14"
 	ext.reactorVersion       = "2.0.8.RELEASE"
-	ext.romeVersion          = "1.6.0"
+	ext.romeVersion          = "1.7.4"
 	ext.slf4jVersion         = "1.7.21"
 	ext.snakeyamlVersion     = "1.17"
-	ext.snifferVersion       = "1.15"
+	ext.snifferVersion       = "1.16"
 	ext.testngVersion        = "6.9.10"
 	ext.tiles2Version        = "2.2.2"
-	ext.tiles3Version        = "3.0.5"
-	ext.tomcatVersion        = "8.5.3"
+	ext.tiles3Version        = "3.0.7"
+	ext.tomcatVersion        = "8.5.31"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
-	ext.undertowVersion      = "1.4.0.CR2"
+	ext.undertowVersion      = "1.3.33.Final"
 	ext.xmlunitVersion       = "1.6"
 	ext.xstreamVersion       = "1.4.9"

@@ -110,11 +111,13 @@ configure(allprojects) { project ->
 	compileJava {
 		sourceCompatibility = 1.6
 		targetCompatibility = 1.6
+		options.encoding = 'UTF-8'
 	}

 	compileTestJava {
 		sourceCompatibility = 1.8
 		targetCompatibility = 1.8
+		options.encoding = 'UTF-8'
 		options.compilerArgs += "-parameters"
 	}

@@ -199,10 +202,10 @@ configure(allprojects) { project ->
 		"http://www.eclipse.org/aspectj/doc/released/aspectj5rt-api/",
 		"http://ehcache.org/apidocs/${ehcacheVersion}",
 		"http://ehcache.org/apidocs/${ehcache3Version}",
-		"http://quartz-scheduler.org/api/2.2.0/",
-		"http://fasterxml.github.io/jackson-core/javadoc/2.7/",
-		"http://fasterxml.github.io/jackson-databind/javadoc/2.7/",
-		"http://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.7/",
+		"http://quartz-scheduler.org/api/2.2.1/",
+		"http://fasterxml.github.io/jackson-core/javadoc/2.8/",
+		"http://fasterxml.github.io/jackson-databind/javadoc/2.8/",
+		"http://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.8/",
 		"http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/"
 	] as String[]
 }
@@ -214,7 +217,6 @@ configure(subprojects - project(":spring-build-src")) { subproject ->
 	configurations {
 		jacoco
 	}
-
 	dependencies {
 		jacoco("org.jacoco:org.jacoco.agent:0.7.5.201505241946:runtime")
 	}
@@ -248,16 +250,16 @@ configure(subprojects - project(":spring-build-src")) { subproject ->
 		options.links(project.ext.javadocLinks)
 		options.addStringOption('Xdoclint:none', '-quiet')

-		// suppress warnings due to cross-module @see and @link references;
-		// note that global 'api' task does display all warnings.
+		// Suppress warnings due to cross-module @see and @link references.
+		// Note that global 'api' task does display all warnings.
 		logging.captureStandardError LogLevel.INFO
-		logging.captureStandardOutput LogLevel.INFO // suppress "## warnings" message
+		logging.captureStandardOutput LogLevel.INFO  // suppress "## warnings" message
 	}

 	task sourcesJar(type: Jar, dependsOn: classes) {
 		classifier = 'sources'
 		from sourceSets.main.allSource
-		// don't include or exclude anything explicitly by default. See SPR-12085.
+		// Don't include or exclude anything explicitly by default. See SPR-12085.
 	}

 	task javadocJar(type: Jar) {
@@ -273,6 +275,7 @@ configure(subprojects - project(":spring-build-src")) { subproject ->

 project("spring-build-src") {
 	description = "Exposes gradle buildSrc for IDE support"
+
 	apply plugin: "groovy"

 	dependencies {
@@ -290,8 +293,8 @@ project("spring-core") {
 	// both into the spring-core jar. cglib 3.2 itself depends on asm 5.x and is therefore
 	// further transformed by the JarJar task to depend on org.springframework.asm; this
 	// avoids including two different copies of asm unnecessarily.
-	def cglibVersion = "3.2.4"
-	def objenesisVersion = "2.4"
+	def cglibVersion = "3.2.6"
+	def objenesisVersion = "2.6"

 	configurations {
 		jarjar
@@ -311,9 +314,9 @@ project("spring-core") {
 					configurations.cglib.each { originalJar ->
 						zipfileset(src: originalJar)
 					}
-					// repackage net.sf.cglib => org.springframework.cglib
+					// Repackage net.sf.cglib => org.springframework.cglib
 					rule(pattern: "net.sf.cglib.**", result: "org.springframework.cglib.@1")
-					// as mentioned above, transform cglib"s internal asm dependencies from
+					// As mentioned above, transform cglib's internal asm dependencies from
 					// org.objectweb.asm => org.springframework.asm. Doing this counts on the
 					// the fact that Spring and cglib depend on the same version of asm!
 					rule(pattern: "org.objectweb.asm.**", result: "org.springframework.asm.@1")
@@ -334,7 +337,7 @@ project("spring-core") {
 					configurations.objenesis.each { originalJar ->
 						zipfileset(src: originalJar)
 					}
-					// repackage org.objenesis => org.springframework.objenesis
+					// Repackage org.objenesis => org.springframework.objenesis
 					rule(pattern: "org.objenesis.**", result: "org.springframework.objenesis.@1")
 				}
 			}
@@ -351,17 +354,17 @@ project("spring-core") {
 		compile("commons-logging:commons-logging:1.2")
 		optional("commons-codec:commons-codec:1.10")
 		optional("org.aspectj:aspectjweaver:${aspectjVersion}")
-		optional("net.sf.jopt-simple:jopt-simple:5.0.2")
+		optional("net.sf.jopt-simple:jopt-simple:5.0.3")
 		optional("log4j:log4j:${log4jVersion}")
 		testCompile("org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}")
 		testCompile("xmlunit:xmlunit:${xmlunitVersion}")
-		testCompile("com.fasterxml.woodstox:woodstox-core:5.0.2") {
+		testCompile("com.fasterxml.woodstox:woodstox-core:5.0.3") {
 			exclude group: "stax", module: "stax-api"
 		}
 	}

 	jar {
-		// inline repackaged cglib classes directly into the spring-core jar
+		// Inline repackaged cglib classes directly into spring-core jar
 		dependsOn cglibRepackJar
 		from(zipTree(cglibRepackJar.archivePath)) {
 			include "org/springframework/cglib/**"
@@ -390,6 +393,7 @@ project("spring-beans") {

 project("spring-beans-groovy") {
 	description "Groovy Bean Definitions"
+
 	merge.into = project(":spring-beans")
 	apply plugin: "groovy"

@@ -398,8 +402,8 @@ project("spring-beans-groovy") {
 		optional("org.codehaus.groovy:groovy-all:${groovyVersion}")
 	}

-	// this module's Java and Groovy sources need to be compiled together
-	compileJava.enabled=false
+	// This module's Java and Groovy sources need to be compiled together.
+	compileJava.enabled = false
 	sourceSets {
 		main {
 			groovy {
@@ -465,26 +469,27 @@ project("spring-instrument-tomcat") {

 project("spring-context") {
 	description = "Spring Context"
+
 	apply plugin: "groovy"

 	dependencies {
 		compile(project(":spring-aop"))
 		compile(project(":spring-beans"))
-		compile(project(":spring-expression"))
 		compile(project(":spring-core"))
+		compile(project(":spring-expression"))
 		compile(files(project(":spring-core").cglibRepackJar))
 		optional(project(":spring-instrument"))
 		optional("javax.inject:javax.inject:1")
 		optional("javax.ejb:ejb-api:${ejbVersion}")
 		optional("javax.enterprise.concurrent:javax.enterprise.concurrent-api:1.0")
-		optional("javax.money:money-api:1.0")
+		optional("javax.money:money-api:1.0.1")
 		optional("org.eclipse.persistence:javax.persistence:2.0.0")
 		optional("javax.validation:validation-api:1.0.0.GA")
 		optional("org.hibernate:hibernate-validator:${hibval4Version}")
 		optional("joda-time:joda-time:${jodaVersion}")
 		optional("org.aspectj:aspectjweaver:${aspectjVersion}")
 		optional("org.codehaus.groovy:groovy-all:${groovyVersion}")
-		optional("org.beanshell:bsh:2.0b4")
+		optional("org.beanshell:bsh:2.0b5")
 		optional("org.jruby:jruby:${jrubyVersion}")
 		testCompile("javax.inject:javax.inject-tck:1")
 		testCompile("org.javamoney:moneta:1.1")
@@ -494,13 +499,44 @@ project("spring-context") {
 	}
 }

+project("spring-oxm") {
+	description = "Spring Object/XML Marshalling"
+	apply from: "oxm.gradle"
+
+	dependencies {
+		compile(project(":spring-beans"))
+		compile(project(":spring-core"))
+		optional("org.codehaus.castor:castor-xml:1.4.1")  {
+			exclude group: 'stax', module: 'stax-api'
+			exclude group: "org.springframework", module: "spring-context"
+		}
+		optional("org.apache.xmlbeans:xmlbeans:2.6.0") {
+			exclude group: 'stax', module: 'stax-api'
+		}
+		optional("com.thoughtworks.xstream:xstream:${xstreamVersion}") {
+			exclude group: 'xpp3', module: 'xpp3_min'
+			exclude group: 'xmlpull', module: 'xmlpull'
+		}
+		optional("org.jibx:jibx-run:1.2.6")
+		testCompile(project(":spring-context"))
+		testCompile("org.ogce:xpp3:1.1.6")
+		testCompile("org.codehaus.jettison:jettison:1.3.8") {
+			exclude group: 'stax', module: 'stax-api'
+		}
+		testCompile("xmlunit:xmlunit:${xmlunitVersion}")
+		testCompile(files(genCastor.classesDir).builtBy(genCastor))
+		testCompile(files(genJaxb.classesDir).builtBy(genJaxb))
+		testCompile(files(genXmlbeans.classesDir).builtBy(genXmlbeans))
+	}
+}
+
 project("spring-messaging") {
 	description = "Spring Messaging"

 	dependencies {
 		compile(project(":spring-beans"))
-		compile(project(":spring-core"))
 		compile(project(":spring-context"))
+		compile(project(":spring-core"))
 		optional(project(":spring-oxm"))
 		optional("io.projectreactor:reactor-core:${reactorVersion}")
 		optional("io.projectreactor:reactor-net:${reactorVersion}") {
@@ -552,54 +588,14 @@ project("spring-tx") {
 	}
 }

-project("spring-oxm") {
-	description = "Spring Object/XML Marshalling"
-	apply from: "oxm.gradle"
-
-	compileTestJava {
-		// necessary to avoid java.lang.VerifyError on jibx compilation
-		// see http://jira.codehaus.org/browse/JIBX-465
-		sourceCompatibility = 1.6
-		targetCompatibility = 1.6
-	}
-
-	dependencies {
-		compile(project(":spring-beans"))
-		compile(project(":spring-core"))
-		optional("org.codehaus.castor:castor-xml:1.4.1")  {
-			exclude group: 'stax', module: 'stax-api'
-			exclude group: "org.springframework", module: "spring-context"
-		}
-		optional("org.apache.xmlbeans:xmlbeans:2.6.0") {
-			exclude group: 'stax', module: 'stax-api'
-		}
-		optional("com.thoughtworks.xstream:xstream:${xstreamVersion}") {
-			exclude group: 'xpp3', module: 'xpp3_min'
-			exclude group: 'xmlpull', module: 'xmlpull'
-		}
-		optional("org.jibx:jibx-run:1.2.6")
-		testCompile(project(":spring-context"))
-		testCompile("xmlunit:xmlunit:${xmlunitVersion}")
-		testCompile("xpp3:xpp3:1.1.4c")
-		testCompile("org.codehaus.jettison:jettison:1.3.7") {
-			exclude group: 'stax', module: 'stax-api'
-		}
-		if (compileTestJava.enabled) {
-			testCompile(files(genCastor.classesDir).builtBy(genCastor))
-			testCompile(files(genJaxb.classesDir).builtBy(genJaxb))
-			testCompile(files(genXmlbeans.classesDir).builtBy(genXmlbeans))
-		}
-	}
-}
-
 project("spring-jms") {
 	description = "Spring JMS"

 	dependencies {
-		compile(project(":spring-core"))
-		compile(project(":spring-beans"))
 		compile(project(":spring-aop"))
+		compile(project(":spring-beans"))
 		compile(project(":spring-context"))
+		compile(project(":spring-core"))
 		compile(project(":spring-messaging"))
 		compile(project(":spring-tx"))
 		provided("javax.jms:jms-api:1.1-rev-1")
@@ -621,9 +617,9 @@ project("spring-jdbc") {
 		optional("javax.transaction:javax.transaction-api:${jtaVersion}")
 		optional("com.mchange:c3p0:0.9.5.2")
 		optional("org.hsqldb:hsqldb:${hsqldbVersion}")
-		optional("com.h2database:h2:1.4.192")
-		optional("org.apache.derby:derby:10.12.1.1")
-		optional("org.apache.derby:derbyclient:10.12.1.1")
+		optional("com.h2database:h2:1.4.193")
+		optional("org.apache.derby:derby:10.13.1.1")
+		optional("org.apache.derby:derbyclient:10.13.1.1")
 	}
 }

@@ -631,9 +627,9 @@ project("spring-context-support") {
 	description = "Spring Context Support"

 	dependencies {
-		compile(project(":spring-core"))
 		compile(project(":spring-beans"))
 		compile(project(":spring-context"))
+		compile(project(":spring-core"))
 		optional(project(":spring-jdbc"))  // for Quartz support
 		optional(project(":spring-tx"))  // for Quartz support
 		optional("javax.mail:javax.mail-api:${javamailVersion}")
@@ -662,11 +658,14 @@ project("spring-context-support") {
 		testCompile("org.slf4j:slf4j-api:${slf4jVersion}")
 		testRuntime("com.sun.mail:javax.mail:${javamailVersion}")
 		testRuntime("org.ehcache:jcache:${ehcachejcacheVersion}")
+		testRuntime("org.ehcache:ehcache:${ehcache3Version}")
+		testRuntime("org.terracotta:management-model:2.3.0")
 	}
 }

 project("spring-web") {
 	description = "Spring Web"
+
 	apply plugin: "groovy"

 	// Re-generate Protobuf classes from *.proto files and move them in test sources
@@ -705,7 +704,7 @@ project("spring-web") {
 		optional("com.squareup.okhttp:okhttp:${okhttpVersion}")
 		optional("com.squareup.okhttp3:okhttp:${okhttp3Version}")
 		optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")
-		optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:${jackson2Version}")
+		optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.8.11")
 		optional("com.google.code.gson:gson:${gsonVersion}")
 		optional("com.rometools:rome:${romeVersion}")
 		optional("org.eclipse.jetty:jetty-servlet:${jettyVersion}") {
@@ -721,12 +720,14 @@ project("spring-web") {
 		testCompile(project(":spring-context-support"))  // for JafMediaTypeFactory
 		testCompile("xmlunit:xmlunit:${xmlunitVersion}")
 		testCompile("org.slf4j:slf4j-jcl:${slf4jVersion}")
+		testCompile("org.skyscreamer:jsonassert:1.4.0")
 		testCompile("org.apache.taglibs:taglibs-standard-jstlel:1.2.1") {
 			exclude group: "org.apache.taglibs", module: "taglibs-standard-spec"
 		}
-		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-joda:${jackson2Version}")
-		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:${jackson2Version}")
+		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-joda:2.8.11")
+		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.8.11")
 		testCompile("com.fasterxml.jackson.module:jackson-module-kotlin:${jackson2Version}")
+    	testCompile("com.squareup.okhttp3:mockwebserver:${okhttp3Version}")
 		testRuntime("com.sun.mail:javax.mail:${javamailVersion}")
 	}
 }
@@ -836,7 +837,7 @@ project("spring-webmvc") {
 			exclude group: "org.springframework", module: "spring-context"
 		}
 		optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")
-		optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:${jackson2Version}")
+		optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.8.11")
 		optional("com.rometools:rome:${romeVersion}")
 		optional("javax.el:javax.el-api:2.2.5")
 		optional("org.apache.tiles:tiles-api:${tiles3Version}")
@@ -856,7 +857,7 @@ project("spring-webmvc") {
 			exclude group: "org.slf4j", module: "jcl-over-slf4j"
 			exclude group: "org.springframework", module: "spring-web"
 		}
-		optional('org.webjars:webjars-locator:0.32')
+		optional('org.webjars:webjars-locator:0.32-1')
 		testCompile("xmlunit:xmlunit:${xmlunitVersion}")
 		testCompile("dom4j:dom4j:1.6.1") {
 			exclude group: "xml-apis", module: "xml-apis"
@@ -876,13 +877,13 @@ project("spring-webmvc") {
 		testCompile("org.hibernate:hibernate-validator:${hibval4Version}")
 		testCompile("org.apache.httpcomponents:httpclient:${httpclientVersion}")
 		testCompile("commons-fileupload:commons-fileupload:${fileuploadVersion}")
-		testCompile("commons-io:commons-io:1.3")
+		testCompile("commons-io:commons-io:1.4")
 		testCompile("joda-time:joda-time:${jodaVersion}")
 		testCompile("org.slf4j:slf4j-jcl:${slf4jVersion}")
-		testCompile("org.jruby:jruby:${jrubyVersion}")
-		testCompile("org.python:jython-standalone:2.5.3")
-		testCompile("org.mozilla:rhino:1.7.7.1")
-		testCompile("org.webjars:underscorejs:1.8.3")
+		testCompile("org.mozilla:rhino:1.7.7.2")
+		testRuntime("org.jruby:jruby:${jrubyVersion}")
+		testRuntime("org.python:jython-standalone:2.5.3")
+		testRuntime("org.webjars:underscorejs:1.8.3")
 	}
 }

@@ -937,8 +938,8 @@ project("spring-websocket") {
 	description = "Spring WebSocket"

 	dependencies {
-		compile(project(":spring-core"))
 		compile(project(":spring-context"))
+		compile(project(":spring-core"))
 		compile(project(":spring-web"))
 		optional(project(":spring-messaging"))
 		optional(project(":spring-webmvc"))
@@ -955,11 +956,11 @@ project("spring-websocket") {
 		optional("org.eclipse.jetty:jetty-webapp:${jettyVersion}") {
 			exclude group: "javax.servlet", module: "javax.servlet"
 		}
-		optional("org.eclipse.jetty.websocket:websocket-server:${jettyVersion}") {
+		optional("org.eclipse.jetty.websocket:websocket-server:${jetty94Version}") {
 			exclude group: "javax.servlet", module: "javax.servlet"
 		}
-		optional("org.eclipse.jetty.websocket:websocket-client:${jettyVersion}")
-		optional("org.eclipse.jetty:jetty-client:${jettyVersion}")
+		optional("org.eclipse.jetty.websocket:websocket-client:${jetty94Version}")
+		optional("org.eclipse.jetty:jetty-client:${jetty94Version}")
 		optional("io.undertow:undertow-core:${undertowVersion}")
 		optional("io.undertow:undertow-servlet:${undertowVersion}") {
 			exclude group: "org.jboss.spec.javax.servlet", module: "jboss-servlet-api_3.1_spec"
@@ -983,11 +984,12 @@ project("spring-test") {

 	dependencies {
 		compile(project(":spring-core"))
+		optional(project(":spring-aop"))
 		optional(project(":spring-beans"))
 		optional(project(":spring-context"))
 		optional(project(":spring-jdbc"))
-		optional(project(":spring-tx"))
 		optional(project(":spring-orm"))
+		optional(project(":spring-tx"))
 		optional(project(":spring-web"))
 		optional(project(":spring-webmvc"))
 		optional(project(":spring-webmvc-portlet"))
@@ -1008,11 +1010,11 @@ project("spring-test") {
 		optional("org.codehaus.groovy:groovy-all:${groovyVersion}")
 		optional("org.hamcrest:hamcrest-core:${hamcrestVersion}")
 		optional("xmlunit:xmlunit:${xmlunitVersion}")
-		optional("net.sourceforge.htmlunit:htmlunit:2.22")
-		optional("org.seleniumhq.selenium:htmlunit-driver:2.21")
+		optional("net.sourceforge.htmlunit:htmlunit:2.23")
+		optional("org.seleniumhq.selenium:htmlunit-driver:2.23.2")
 		optional("org.seleniumhq.selenium:selenium-java:2.53.1")
-		optional("org.skyscreamer:jsonassert:1.3.0")
-		optional("com.jayway.jsonpath:json-path:2.2.0")
+		optional("org.skyscreamer:jsonassert:1.4.0")
+		optional("com.jayway.jsonpath:json-path:2.3.0")
 		testCompile(project(":spring-context-support"))
 		testCompile(project(":spring-oxm"))
 		testCompile("javax.mail:javax.mail-api:${javamailVersion}")
@@ -1035,8 +1037,6 @@ project("spring-test") {
 		testCompile("org.apache.httpcomponents:httpclient:${httpclientVersion}")
 		testCompile("javax.cache:cache-api:1.0.0")
 		testRuntime("log4j:log4j:${log4jVersion}")
-		testRuntime("org.ehcache:ehcache:${ehcache3Version}")
-		testRuntime("org.terracotta:management-model:2.0.0")
 	}

 	task testNG(type: Test) {
@@ -1181,7 +1181,7 @@ configure(rootProject) {
 	// don't publish the default jar for the root project
 	configurations.archives.artifacts.clear()

-	dependencies { // for integration tests
+	dependencies {  // for integration tests
 		testCompile(project(":spring-aop"))
 		testCompile(project(":spring-beans"))
 		testCompile(project(":spring-context"))
@@ -1230,11 +1230,11 @@ configure(rootProject) {

 		doFirst {
 			classpath = files(
-				// ensure Servlet 3.x and Hibernate 4.x have precedence on the javadoc
+				// Ensure Servlet 3.x and Hibernate 4.x have precedence on the javadoc
 				// classpath over their respective 2.5 and 3.x variants
 				project(":spring-webmvc").sourceSets.main.compileClasspath.files.find { it =~ "servlet-api" },
 				rootProject.sourceSets.test.compileClasspath.files.find { it =~ "hibernate-core" },
-				// ensure the javadoc process can resolve types compiled from .aj sources
+				// Ensure the javadoc process can resolve types compiled from .aj sources
 				project(":spring-aspects").sourceSets.main.output
 			)
 			classpath += files(subprojects.collect { it.sourceSets.main.compileClasspath })
@@ -1367,7 +1367,7 @@ configure(rootProject) {

 	task wrapper(type: Wrapper) {
 		description = "Generates gradlew[.bat] scripts"
-		gradleVersion = "2.13"
+		gradleVersion = "2.14.1"

 		doLast() {
 			def gradleOpts = "-XX:MaxMetaspaceSize=1024m -Xmx1024m"
@@ -1 +1 @@
-version=4.3.1.BUILD-SNAPSHOT
+version=4.3.18.RELEASE
@@ -29,8 +29,8 @@ def customizePom(pom, gradleProject) {
 			}
 			licenses {
 				license {
-					name "The Apache Software License, Version 2.0"
-					url "http://www.apache.org/licenses/LICENSE-2.0.txt"
+					name "Apache License, Version 2.0"
+					url "http://www.apache.org/licenses/LICENSE-2.0"
 					distribution "repo"
 				}
 			}
@@ -1,6 +1,6 @@
-#Wed Jun 15 12:59:30 CEST 2016
+#Wed Aug 17 21:21:18 CEST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-bin.zip
@@ -46,7 +46,7 @@ public interface MethodInterceptor extends Interceptor {
 	 * after the invocation. Polite implementations would certainly
 	 * like to invoke {@link Joinpoint#proceed()}.
 	 * @param invocation the method invocation joinpoint
-	 * @return the result of the call to {@link Joinpoint#proceed();
+	 * @return the result of the call to {@link Joinpoint#proceed()};
 	 * might be intercepted by the interceptor
 	 * @throws Throwable if the interceptors or the target object
 	 * throws an exception
@@ -1,5 +1,5 @@
 /*<
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -34,9 +34,8 @@ public interface TargetSource extends TargetClassAware {

 	/**
 	 * Return the type of targets returned by this {@link TargetSource}.
-	 * <p>Can return {@code null}, although certain usages of a
-	 * {@code TargetSource} might just work with a predetermined
-	 * target class.
+	 * <p>Can return {@code null}, although certain usages of a {@code TargetSource}
+	 * might just work with a predetermined target class.
 	 * @return the type of targets returned by this {@link TargetSource}
 	 */
 	@Override
@@ -44,9 +43,8 @@ public interface TargetSource extends TargetClassAware {

 	/**
 	 * Will all calls to {@link #getTarget()} return the same object?
-	 * <p>In that case, there will be no need to invoke
-	 * {@link #releaseTarget(Object)}, and the AOP framework can cache
-	 * the return value of {@link #getTarget()}.
+	 * <p>In that case, there will be no need to invoke {@link #releaseTarget(Object)},
+	 * and the AOP framework can cache the return value of {@link #getTarget()}.
 	 * @return {@code true} if the target is immutable
 	 * @see #getTarget
 	 */
@@ -55,14 +53,15 @@ public interface TargetSource extends TargetClassAware {
 	/**
 	 * Return a target instance. Invoked immediately before the
 	 * AOP framework calls the "target" of an AOP method invocation.
-	 * @return the target object, which contains the joinpoint
+	 * @return the target object which contains the joinpoint,
+	 * or {@code null} if there is no actual target instance
 	 * @throws Exception if the target object can't be resolved
 	 */
 	Object getTarget() throws Exception;

 	/**
 	 * Release the given target object obtained from the
-	 * {@link #getTarget()} method.
+	 * {@link #getTarget()} method, if any.
 	 * @param target object obtained from a call to {@link #getTarget()}
 	 * @throws Exception if the object can't be released
 	 */
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -103,8 +103,8 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 	private final AspectInstanceFactory aspectInstanceFactory;

 	/**
-	 * The name of the aspect (ref bean) in which this advice was defined (used
-	 * when determining advice precedence so that we can determine
+	 * The name of the aspect (ref bean) in which this advice was defined
+	 * (used when determining advice precedence so that we can determine
 	 * whether two pieces of advice come from the same aspect).
 	 */
 	private String aspectName;
@@ -118,13 +118,13 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 	 * This will be non-null if the creator of this advice object knows the argument names
 	 * and sets them explicitly
 	 */
-	private String[] argumentNames = null;
+	private String[] argumentNames;

 	/** Non-null if after throwing advice binds the thrown value */
-	private String throwingName = null;
+	private String throwingName;

 	/** Non-null if after returning advice binds the return value */
-	private String returningName = null;
+	private String returningName;

 	private Class<?> discoveredReturningType = Object.class;

@@ -227,7 +227,7 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 	}

 	/**
-	 * Sets the <b>declaration order</b> of this advice within the aspect
+	 * Set the declaration order of this advice within the aspect.
 	 */
 	public void setDeclarationOrder(int order) {
 		this.declarationOrder = order;
@@ -295,8 +295,8 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 			}
 			catch (Throwable ex) {
 				throw new IllegalArgumentException("Returning name '" + name  +
-						"' is neither a valid argument name nor the fully-qualified name of a Java type on the classpath. " +
-						"Root cause: " + ex);
+						"' is neither a valid argument name nor the fully-qualified " +
+						"name of a Java type on the classpath. Root cause: " + ex);
 			}
 		}
 	}
@@ -329,8 +329,8 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 			}
 			catch (Throwable ex) {
 				throw new IllegalArgumentException("Throwing name '" + name  +
-						"' is neither a valid argument name nor the fully-qualified name of a Java type on the classpath. " +
-						"Root cause: " + ex);
+						"' is neither a valid argument name nor the fully-qualified " +
+						"name of a Java type on the classpath. Root cause: " + ex);
 			}
 		}
 	}
@@ -366,7 +366,7 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 	 * to which argument name. There are multiple strategies for determining
 	 * this binding, which are arranged in a ChainOfResponsibility.
 	 */
-	public synchronized final void calculateArgumentBindings() {
+	public final synchronized void calculateArgumentBindings() {
 		// The simple case... nothing to bind.
 		if (this.argumentsIntrospected || this.parameterTypes.length == 0) {
 			return;
@@ -374,10 +374,8 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence

 		int numUnboundArgs = this.parameterTypes.length;
 		Class<?>[] parameterTypes = this.aspectJAdviceMethod.getParameterTypes();
-		if (maybeBindJoinPoint(parameterTypes[0]) || maybeBindProceedingJoinPoint(parameterTypes[0])) {
-			numUnboundArgs--;
-		}
-		else if (maybeBindJoinPointStaticPart(parameterTypes[0])) {
+		if (maybeBindJoinPoint(parameterTypes[0]) || maybeBindProceedingJoinPoint(parameterTypes[0]) ||
+				maybeBindJoinPointStaticPart(parameterTypes[0])) {
 			numUnboundArgs--;
 		}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -113,6 +113,7 @@ import org.springframework.util.StringUtils;
 * returning {@code null} in the case that the parameter names cannot be discovered.
 *
 * @author Adrian Colyer
+ * @author Juergen Hoeller
 * @since 2.0
 */
 public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscoverer {
@@ -154,23 +155,17 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 	}


+	/** The pointcut expression associated with the advice, as a simple String */
+	private String pointcutExpression;
+
 	private boolean raiseExceptions;

-	/**
-	 * If the advice is afterReturning, and binds the return value, this is the parameter name used.
-	 */
+	/** If the advice is afterReturning, and binds the return value, this is the parameter name used */
 	private String returningName;

-	/**
-	 * If the advice is afterThrowing, and binds the thrown value, this is the parameter name used.
-	 */
+	/** If the advice is afterThrowing, and binds the thrown value, this is the parameter name used */
 	private String throwingName;

-	/**
-	 * The pointcut expression associated with the advice, as a simple String.
-	 */
-	private String pointcutExpression;
-
 	private Class<?>[] argumentTypes;

 	private String[] parameterNameBindings;
@@ -186,6 +181,7 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 		this.pointcutExpression = pointcutExpression;
 	}

+
 	/**
 	 * Indicate whether {@link IllegalArgumentException} and {@link AmbiguousBindingException}
 	 * must be thrown as appropriate in the case of failing to deduce advice parameter names.
@@ -213,6 +209,7 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 		this.throwingName = throwingName;
 	}

+
 	/**
 	 * Deduce the parameter names for an advice method.
 	 * <p>See the {@link AspectJAdviceParameterNameDiscoverer class level javadoc}
@@ -418,7 +415,7 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 		String[] tokens = StringUtils.tokenizeToStringArray(this.pointcutExpression, " ");
 		for (int i = 0; i < tokens.length; i++) {
 			String toMatch = tokens[i];
-			int firstParenIndex = toMatch.indexOf("(");
+			int firstParenIndex = toMatch.indexOf('(');
 			if (firstParenIndex != -1) {
 				toMatch = toMatch.substring(0, firstParenIndex);
 			}
@@ -474,7 +471,7 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 	 * If the token starts meets Java identifier conventions, it's in.
 	 */
 	private String maybeExtractVariableName(String candidateToken) {
-		if (candidateToken == null || candidateToken.equals("")) {
+		if (!StringUtils.hasLength(candidateToken)) {
 			return null;
 		}
 		if (Character.isJavaIdentifierStart(candidateToken.charAt(0)) &&
@@ -578,7 +575,7 @@ public class AspectJAdviceParameterNameDiscoverer implements ParameterNameDiscov
 			if (toMatch.startsWith("!")) {
 				toMatch = toMatch.substring(1);
 			}
-			int firstParenIndex = toMatch.indexOf("(");
+			int firstParenIndex = toMatch.indexOf('(');
 			if (firstParenIndex != -1) {
 				toMatch = toMatch.substring(0, firstParenIndex);
 			}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -28,7 +28,6 @@ import java.util.concurrent.ConcurrentHashMap;
 import org.aopalliance.intercept.MethodInvocation;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.aspectj.weaver.BCException;
 import org.aspectj.weaver.patterns.NamePattern;
 import org.aspectj.weaver.reflect.ReflectionWorld.ReflectionWorldException;
 import org.aspectj.weaver.reflect.ShadowMatchImpl;
@@ -187,13 +186,24 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 			throw new IllegalStateException("Must set property 'expression' before attempting to match");
 		}
 		if (this.pointcutExpression == null) {
-			this.pointcutClassLoader = (this.beanFactory instanceof ConfigurableBeanFactory ?
-					((ConfigurableBeanFactory) this.beanFactory).getBeanClassLoader() :
-					ClassUtils.getDefaultClassLoader());
+			this.pointcutClassLoader = determinePointcutClassLoader();
 			this.pointcutExpression = buildPointcutExpression(this.pointcutClassLoader);
 		}
 	}

+	/**
+	 * Determine the ClassLoader to use for pointcut evaluation.
+	 */
+	private ClassLoader determinePointcutClassLoader() {
+		if (this.beanFactory instanceof ConfigurableBeanFactory) {
+			return ((ConfigurableBeanFactory) this.beanFactory).getBeanClassLoader();
+		}
+		if (this.pointcutDeclarationScope != null) {
+			return this.pointcutDeclarationScope.getClassLoader();
+		}
+		return ClassUtils.getDefaultClassLoader();
+	}
+
 	/**
 	 * Build the underlying AspectJ pointcut expression.
 	 */
@@ -258,7 +268,7 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 				}
 			}
 		}
-		catch (BCException ex) {
+		catch (Throwable ex) {
 			logger.debug("PointcutExpression matching rejected target class", ex);
 		}
 		return false;
@@ -326,7 +336,6 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 		}
 		catch (IllegalStateException ex) {
 			// No current invocation...
-			// TODO: Should we really proceed here?
 			if (logger.isDebugEnabled()) {
 				logger.debug("Could not access current invocation - matching with limited context: " + ex);
 			}
@@ -413,39 +422,46 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 				shadowMatch = this.shadowMatchCache.get(targetMethod);
 				if (shadowMatch == null) {
 					try {
-						shadowMatch = this.pointcutExpression.matchesMethodExecution(methodToMatch);
-					}
-					catch (ReflectionWorldException ex) {
-						// Failed to introspect target method, probably because it has been loaded
-						// in a special ClassLoader. Let's try the declaring ClassLoader instead...
-						try {
-							fallbackExpression = getFallbackPointcutExpression(methodToMatch.getDeclaringClass());
-							if (fallbackExpression != null) {
-								shadowMatch = fallbackExpression.matchesMethodExecution(methodToMatch);
-							}
-						}
-						catch (ReflectionWorldException ex2) {
-							fallbackExpression = null;
-						}
-					}
-					if (shadowMatch == null && targetMethod != originalMethod) {
-						methodToMatch = originalMethod;
 						try {
 							shadowMatch = this.pointcutExpression.matchesMethodExecution(methodToMatch);
 						}
-						catch (ReflectionWorldException ex3) {
-							// Could neither introspect the target class nor the proxy class ->
-							// let's try the original method's declaring class before we give up...
+						catch (ReflectionWorldException ex) {
+							// Failed to introspect target method, probably because it has been loaded
+							// in a special ClassLoader. Let's try the declaring ClassLoader instead...
 							try {
 								fallbackExpression = getFallbackPointcutExpression(methodToMatch.getDeclaringClass());
 								if (fallbackExpression != null) {
 									shadowMatch = fallbackExpression.matchesMethodExecution(methodToMatch);
 								}
 							}
-							catch (ReflectionWorldException ex4) {
+							catch (ReflectionWorldException ex2) {
 								fallbackExpression = null;
 							}
 						}
+						if (shadowMatch == null && targetMethod != originalMethod) {
+							methodToMatch = originalMethod;
+							try {
+								shadowMatch = this.pointcutExpression.matchesMethodExecution(methodToMatch);
+							}
+							catch (ReflectionWorldException ex3) {
+								// Could neither introspect the target class nor the proxy class ->
+								// let's try the original method's declaring class before we give up...
+								try {
+									fallbackExpression = getFallbackPointcutExpression(methodToMatch.getDeclaringClass());
+									if (fallbackExpression != null) {
+										shadowMatch = fallbackExpression.matchesMethodExecution(methodToMatch);
+									}
+								}
+								catch (ReflectionWorldException ex4) {
+									fallbackExpression = null;
+								}
+							}
+						}
+					}
+					catch (Throwable ex) {
+						// Possibly AspectJ 1.8.10 encountering an invalid signature
+						logger.debug("PointcutExpression matching rejected target method", ex);
+						fallbackExpression = null;
 					}
 					if (shadowMatch == null) {
 						shadowMatch = new ShadowMatchImpl(org.aspectj.util.FuzzyBoolean.NO, null, null, null);
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -18,6 +18,8 @@ package org.springframework.aop.aspectj;

 import org.springframework.aop.Pointcut;
 import org.springframework.aop.support.AbstractGenericPointcutAdvisor;
+import org.springframework.beans.factory.BeanFactory;
+import org.springframework.beans.factory.BeanFactoryAware;

 /**
 * Spring AOP Advisor that can be used for any AspectJ pointcut expression.
@@ -26,16 +28,11 @@ import org.springframework.aop.support.AbstractGenericPointcutAdvisor;
 * @since 2.0
 */
@SuppressWarnings("serial")
-public class AspectJExpressionPointcutAdvisor extends AbstractGenericPointcutAdvisor {
+public class AspectJExpressionPointcutAdvisor extends AbstractGenericPointcutAdvisor implements BeanFactoryAware {

 	private final AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();


-	@Override
-	public Pointcut getPointcut() {
-		return this.pointcut;
-	}
-
 	public void setExpression(String expression) {
 		this.pointcut.setExpression(expression);
 	}
@@ -52,12 +49,22 @@ public class AspectJExpressionPointcutAdvisor extends AbstractGenericPointcutAdv
 		return this.pointcut.getLocation();
 	}

-	public void setParameterTypes(Class<?>[] types) {
-		this.pointcut.setParameterTypes(types);
-	}
-
 	public void setParameterNames(String... names) {
 		this.pointcut.setParameterNames(names);
 	}

+	public void setParameterTypes(Class<?>... types) {
+		this.pointcut.setParameterTypes(types);
+	}
+
+	@Override
+	public void setBeanFactory(BeanFactory beanFactory) {
+		this.pointcut.setBeanFactory(beanFactory);
+	}
+
+	@Override
+	public Pointcut getPointcut() {
+		return this.pointcut;
+	}
+
 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -22,7 +22,6 @@ import org.springframework.aop.Pointcut;
 import org.springframework.aop.PointcutAdvisor;
 import org.springframework.core.Ordered;
 import org.springframework.util.Assert;
-import org.springframework.util.ObjectUtils;

 /**
 * AspectJPointcutAdvisor that adapts an {@link AbstractAspectJAdvice}
@@ -51,11 +50,11 @@ public class AspectJPointcutAdvisor implements PointcutAdvisor, Ordered {
 		this.pointcut = advice.buildSafePointcut();
 	}

+
 	public void setOrder(int order) {
 		this.order = order;
 	}

-
 	@Override
 	public boolean isPerInstance() {
 		return true;
@@ -91,12 +90,12 @@ public class AspectJPointcutAdvisor implements PointcutAdvisor, Ordered {
 			return false;
 		}
 		AspectJPointcutAdvisor otherAdvisor = (AspectJPointcutAdvisor) other;
-		return (ObjectUtils.nullSafeEquals(this.advice, otherAdvisor.advice));
+		return this.advice.equals(otherAdvisor.advice);
 	}

 	@Override
 	public int hashCode() {
-		return AspectJPointcutAdvisor.class.hashCode();
+		return AspectJPointcutAdvisor.class.hashCode() * 29 + this.advice.hashCode();
 	}

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import org.aopalliance.aop.Advice;

 import org.springframework.aop.ClassFilter;
 import org.springframework.aop.IntroductionAdvisor;
+import org.springframework.aop.IntroductionInterceptor;
 import org.springframework.aop.support.ClassFilters;
 import org.springframework.aop.support.DelegatePerTargetObjectIntroductionInterceptor;
 import org.springframework.aop.support.DelegatingIntroductionInterceptor;
@@ -34,12 +35,12 @@ import org.springframework.aop.support.DelegatingIntroductionInterceptor;
 */
 public class DeclareParentsAdvisor implements IntroductionAdvisor {

+	private final Advice advice;
+
 	private final Class<?> introducedInterface;

 	private final ClassFilter typePatternClassFilter;

-	private final Advice advice;
-

 	/**
 	 * Create a new advisor for this DeclareParents field.
@@ -48,8 +49,8 @@ public class DeclareParentsAdvisor implements IntroductionAdvisor {
 	 * @param defaultImpl the default implementation class
 	 */
 	public DeclareParentsAdvisor(Class<?> interfaceType, String typePattern, Class<?> defaultImpl) {
-		this(interfaceType, typePattern, defaultImpl,
-			 new DelegatePerTargetObjectIntroductionInterceptor(defaultImpl, interfaceType));
+		this(interfaceType, typePattern,
+				new DelegatePerTargetObjectIntroductionInterceptor(defaultImpl, interfaceType));
 	}

 	/**
@@ -59,8 +60,7 @@ public class DeclareParentsAdvisor implements IntroductionAdvisor {
 	 * @param delegateRef the delegate implementation object
 	 */
 	public DeclareParentsAdvisor(Class<?> interfaceType, String typePattern, Object delegateRef) {
-		this(interfaceType, typePattern, delegateRef.getClass(),
-			 new DelegatingIntroductionInterceptor(delegateRef));
+		this(interfaceType, typePattern, new DelegatingIntroductionInterceptor(delegateRef));
 	}

 	/**
@@ -68,23 +68,21 @@ public class DeclareParentsAdvisor implements IntroductionAdvisor {
 	 * (cannot use method such as init() to share common code, due the use of final fields)
 	 * @param interfaceType static field defining the introduction
 	 * @param typePattern type pattern the introduction is restricted to
-	 * @param implementationClass implementation class
-	 * @param advice delegation advice
+	 * @param interceptor the delegation advice as {@link IntroductionInterceptor}
 	 */
-	private DeclareParentsAdvisor(Class<?> interfaceType, String typePattern, Class<?> implementationClass, Advice advice) {
+	private DeclareParentsAdvisor(Class<?> interfaceType, String typePattern, IntroductionInterceptor interceptor) {
+		this.advice = interceptor;
 		this.introducedInterface = interfaceType;
-		ClassFilter typePatternFilter = new TypePatternClassFilter(typePattern);

 		// Excludes methods implemented.
+		ClassFilter typePatternFilter = new TypePatternClassFilter(typePattern);
 		ClassFilter exclusion = new ClassFilter() {
 			@Override
 			public boolean matches(Class<?> clazz) {
-				return !(introducedInterface.isAssignableFrom(clazz));
+				return !introducedInterface.isAssignableFrom(clazz);
 			}
 		};
-
 		this.typePatternClassFilter = ClassFilters.intersection(typePatternFilter, exclusion);
-		this.advice = advice;
 	}


@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -32,17 +32,15 @@ import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.util.Assert;

 /**
- * Implementation of AspectJ ProceedingJoinPoint interface
- * wrapping an AOP Alliance MethodInvocation.
+ * An implementation of the AspectJ {@link ProceedingJoinPoint} interface
+ * wrapping an AOP Alliance {@link org.aopalliance.intercept.MethodInvocation}.
 *
- * <p><b>Note</b>: the {@code getThis()} method returns the current Spring AOP proxy.
+ * <p><b>Note</b>: The {@code getThis()} method returns the current Spring AOP proxy.
 * The {@code getTarget()} method returns the current Spring AOP target (which may be
- * {@code null} if there is no target), and is a plain POJO without any advice.
- * <b>If you want to call the object and have the advice take effect, use
- * {@code getThis()}.</b> A common example is casting the object to an
- * introduced interface in the implementation of an introduction.
- *
- * <p>Of course there is no such distinction between target and proxy in AspectJ.
+ * {@code null} if there is no target instance) as a plain POJO without any advice.
+ * <b>If you want to call the object and have the advice take effect, use {@code getThis()}.</b>
+ * A common example is casting the object to an introduced interface in the implementation of
+ * an introduction. There is no such distinction between target and proxy in AspectJ itself.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
@@ -56,7 +54,7 @@ public class MethodInvocationProceedingJoinPoint implements ProceedingJoinPoint,

 	private final ProxyMethodInvocation methodInvocation;

-	private Object[] defensiveCopyOfArgs;
+	private Object[] args;

 	/** Lazily initialized signature object */
 	private Signature signature;
@@ -75,6 +73,7 @@ public class MethodInvocationProceedingJoinPoint implements ProceedingJoinPoint,
 		this.methodInvocation = methodInvocation;
 	}

+
 	@Override
 	public void set$AroundClosure(AroundClosure aroundClosure) {
 		throw new UnsupportedOperationException();
@@ -115,12 +114,10 @@ public class MethodInvocationProceedingJoinPoint implements ProceedingJoinPoint,

 	@Override
 	public Object[] getArgs() {
-		if (this.defensiveCopyOfArgs == null) {
-			Object[] argsSource = this.methodInvocation.getArguments();
-			this.defensiveCopyOfArgs = new Object[argsSource.length];
-			System.arraycopy(argsSource, 0, this.defensiveCopyOfArgs, 0, argsSource.length);
+		if (this.args == null) {
+			this.args = this.methodInvocation.getArguments().clone();
 		}
-		return this.defensiveCopyOfArgs;
+		return this.args;
 	}

 	@Override
@@ -128,7 +125,7 @@ public class MethodInvocationProceedingJoinPoint implements ProceedingJoinPoint,
 		if (this.signature == null) {
 			this.signature = new MethodSignatureImpl();
 		}
-		return signature;
+		return this.signature;
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -41,6 +41,7 @@ public class SimpleAspectInstanceFactory implements AspectInstanceFactory {
 		this.aspectClass = aspectClass;
 	}

+
 	/**
 	 * Return the specified aspect class (never {@code null}).
 	 */
@@ -48,17 +49,18 @@ public class SimpleAspectInstanceFactory implements AspectInstanceFactory {
 		return this.aspectClass;
 	}

-
 	@Override
 	public final Object getAspectInstance() {
 		try {
 			return this.aspectClass.newInstance();
 		}
 		catch (InstantiationException ex) {
-			throw new AopConfigException("Unable to instantiate aspect class [" + this.aspectClass.getName() + "]", ex);
+			throw new AopConfigException(
+					"Unable to instantiate aspect class: " + this.aspectClass.getName(), ex);
 		}
 		catch (IllegalAccessException ex) {
-			throw new AopConfigException("Cannot access element class [" + this.aspectClass.getName() + "]", ex);
+			throw new AopConfigException(
+					"Could not access aspect constructor: " + this.aspectClass.getName(), ex);
 		}
 	}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ import org.springframework.util.StringUtils;
 * Spring AOP {@link ClassFilter} implementation using AspectJ type matching.
 *
 * @author Rod Johnson
+ * @author Juergen Hoeller
 * @since 2.0
 */
 public class TypePatternClassFilter implements ClassFilter {
@@ -76,17 +77,21 @@ public class TypePatternClassFilter implements ClassFilter {
 	 * or is recognized as invalid
 	 */
 	public void setTypePattern(String typePattern) {
-		Assert.notNull(typePattern);
+		Assert.notNull(typePattern, "Type pattern must not be null");
 		this.typePattern = typePattern;
 		this.aspectJTypePatternMatcher =
 				PointcutParser.getPointcutParserSupportingAllPrimitivesAndUsingContextClassloaderForResolution().
 				parseTypePattern(replaceBooleanOperators(typePattern));
 	}

+	/**
+	 * Return the AspectJ type pattern to match.
+	 */
 	public String getTypePattern() {
-		return typePattern;
+		return this.typePattern;
 	}

+
 	/**
 	 * Should the pointcut apply to the given interface or target class?
 	 * @param clazz candidate target class
@@ -95,9 +100,7 @@ public class TypePatternClassFilter implements ClassFilter {
 	 */
 	@Override
 	public boolean matches(Class<?> clazz) {
-		if (this.aspectJTypePatternMatcher == null) {
-			throw new IllegalStateException("No 'typePattern' has been set via ctor/setter.");
-		}
+		Assert.state(this.aspectJTypePatternMatcher != null, "No type pattern has been set");
 		return this.aspectJTypePatternMatcher.matches(clazz);
 	}

@@ -108,9 +111,8 @@ public class TypePatternClassFilter implements ClassFilter {
 	 * <p>This method converts back to {@code &&} for the AspectJ pointcut parser.
 	 */
 	private String replaceBooleanOperators(String pcExpr) {
-		pcExpr = StringUtils.replace(pcExpr," and "," && ");
-		pcExpr = StringUtils.replace(pcExpr, " or ", " || ");
-		pcExpr = StringUtils.replace(pcExpr, " not ", " ! ");
-		return pcExpr;
+		String result = StringUtils.replace(pcExpr," and "," && ");
+		result = StringUtils.replace(result, " or ", " || ");
+		return StringUtils.replace(result, " not ", " ! ");
 	}
 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -38,7 +38,6 @@ import org.aspectj.lang.reflect.AjType;
 import org.aspectj.lang.reflect.AjTypeSystem;
 import org.aspectj.lang.reflect.PerClauseKind;

-import org.springframework.aop.aspectj.AspectJExpressionPointcut;
 import org.springframework.aop.framework.AopConfigException;
 import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.core.annotation.AnnotationUtils;
@@ -121,49 +120,6 @@ public abstract class AbstractAspectJAdvisorFactory implements AspectJAdvisorFac
 		}
 	}

-	/**
-	 * The pointcut and advice annotations both have an "argNames" member which contains a
-	 * comma-separated list of the argument names. We use this (if non-empty) to build the
-	 * formal parameters for the pointcut.
-	 */
-	protected AspectJExpressionPointcut createPointcutExpression(
-			Method annotatedMethod, Class<?> declarationScope, String[] pointcutParameterNames) {
-
-		Class<?> [] pointcutParameterTypes = new Class<?>[0];
-		if (pointcutParameterNames != null) {
-			pointcutParameterTypes = extractPointcutParameterTypes(pointcutParameterNames,annotatedMethod);
-		}
-
-		AspectJExpressionPointcut ajexp =
-				new AspectJExpressionPointcut(declarationScope,pointcutParameterNames,pointcutParameterTypes);
-		ajexp.setLocation(annotatedMethod.toString());
-		return ajexp;
-	}
-
-	/**
-	 * Create the pointcut parameters needed by aspectj based on the given argument names
-	 * and the argument types that are available from the adviceMethod. Needs to take into
-	 * account (ignore) any JoinPoint based arguments as these are not pointcut context but
-	 * rather part of the advice execution context (thisJoinPoint, thisJoinPointStaticPart)
-	 */
-	private Class<?>[] extractPointcutParameterTypes(String[] argNames, Method adviceMethod) {
-		Class<?>[] ret = new Class<?>[argNames.length];
-		Class<?>[] paramTypes = adviceMethod.getParameterTypes();
-		if (argNames.length > paramTypes.length) {
-			throw new IllegalStateException("Expecting at least " + argNames.length +
-					" arguments in the advice declaration, but only found " + paramTypes.length);
-		}
-
-		// Make the simplifying assumption for now that all of the JoinPoint based arguments
-		// come first in the advice declaration.
-		int typeOffset = paramTypes.length - argNames.length;
-		for (int i = 0; i < ret.length; i++) {
-			ret[i] = paramTypes[i + typeOffset];
-		}
-		return ret;
-	}
-
-
 	/**
 	 * Find and return the first AspectJ annotation on the given method
 	 * (there <i>should</i> only be one anyway...)
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class AnnotationAwareAspectJAutoProxyCreator extends AspectJAwareAdvisorA

 	private List<Pattern> includePatterns;

-	private AspectJAdvisorFactory aspectJAdvisorFactory = new ReflectiveAspectJAdvisorFactory();
+	private AspectJAdvisorFactory aspectJAdvisorFactory;

 	private BeanFactoryAspectJAdvisorsBuilder aspectJAdvisorsBuilder;

@@ -74,6 +74,9 @@ public class AnnotationAwareAspectJAutoProxyCreator extends AspectJAwareAdvisorA
 	@Override
 	protected void initBeanFactory(ConfigurableListableBeanFactory beanFactory) {
 		super.initBeanFactory(beanFactory);
+		if (this.aspectJAdvisorFactory == null) {
+			this.aspectJAdvisorFactory = new ReflectiveAspectJAdvisorFactory(beanFactory);
+		}
 		this.aspectJAdvisorsBuilder =
 				new BeanFactoryAspectJAdvisorsBuilderAdapter(beanFactory, this.aspectJAdvisorFactory);
 	}
@@ -130,6 +133,7 @@ public class AnnotationAwareAspectJAutoProxyCreator extends AspectJAwareAdvisorA

 		public BeanFactoryAspectJAdvisorsBuilderAdapter(
 				ListableBeanFactory beanFactory, AspectJAdvisorFactory advisorFactory) {
+
 			super(beanFactory, advisorFactory);
 		}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,9 +16,9 @@

 package org.springframework.aop.aspectj.annotation;

-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;

 import org.aspectj.lang.reflect.PerClauseKind;

@@ -50,7 +50,7 @@ import org.springframework.util.ClassUtils;
 public class AspectJProxyFactory extends ProxyCreatorSupport {

 	/** Cache for singleton aspect instances */
-	private static final Map<Class<?>, Object> aspectCache = new HashMap<Class<?>, Object>();
+	private static final Map<Class<?>, Object> aspectCache = new ConcurrentHashMap<Class<?>, Object>();

 	private final AspectJAdvisorFactory aspectFactory = new ReflectiveAspectJAdvisorFactory();

@@ -144,7 +144,7 @@ public class AspectJProxyFactory extends ProxyCreatorSupport {
 	private MetadataAwareAspectInstanceFactory createAspectInstanceFactory(
 			AspectMetadata am, Class<?> aspectClass, String aspectName) {

-		MetadataAwareAspectInstanceFactory instanceFactory = null;
+		MetadataAwareAspectInstanceFactory instanceFactory;
 		if (am.getAjType().getPerClause().getKind() == PerClauseKind.SINGLETON) {
 			// Create a shared aspect instance.
 			Object instance = getSingletonAspectInstance(aspectClass);
@@ -162,23 +162,29 @@ public class AspectJProxyFactory extends ProxyCreatorSupport {
 	 * is created if one cannot be found in the instance cache.
 	 */
 	private Object getSingletonAspectInstance(Class<?> aspectClass) {
-		synchronized (aspectCache) {
-			Object instance = aspectCache.get(aspectClass);
-			if (instance != null) {
-				return instance;
-			}
-			try {
-				instance = aspectClass.newInstance();
-				aspectCache.put(aspectClass, instance);
-				return instance;
-			}
-			catch (InstantiationException ex) {
-				throw new AopConfigException("Unable to instantiate aspect class [" + aspectClass.getName() + "]", ex);
-			}
-			catch (IllegalAccessException ex) {
-				throw new AopConfigException("Cannot access aspect class [" + aspectClass.getName() + "]", ex);
+		// Quick check without a lock...
+		Object instance = aspectCache.get(aspectClass);
+		if (instance == null) {
+			synchronized (aspectCache) {
+				// To be safe, check within full lock now...
+				instance = aspectCache.get(aspectClass);
+				if (instance == null) {
+					try {
+						instance = aspectClass.newInstance();
+						aspectCache.put(aspectClass, instance);
+					}
+					catch (InstantiationException ex) {
+						throw new AopConfigException(
+								"Unable to instantiate aspect class: " + aspectClass.getName(), ex);
+					}
+					catch (IllegalAccessException ex) {
+						throw new AopConfigException(
+								"Could not access aspect constructor: " + aspectClass.getName(), ex);
+					}
+				}
 			}
 		}
+		return instance;
 	}


@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -35,9 +35,8 @@ import org.springframework.aop.support.ComposablePointcut;
 * Metadata for an AspectJ aspect class, with an additional Spring AOP pointcut
 * for the per clause.
 *
- * <p>Uses AspectJ 5 AJType reflection API, so is only supported on Java 5.
- * Enables us to work with different AspectJ instantiation models such as
- * "singleton", "pertarget" and "perthis".
+ * <p>Uses AspectJ 5 AJType reflection API, enabling us to work with different
+ * AspectJ instantiation models such as "singleton", "pertarget" and "perthis".
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
@@ -102,20 +101,22 @@ public class AspectMetadata implements Serializable {
 		this.ajType = ajType;

 		switch (this.ajType.getPerClause().getKind()) {
-			case SINGLETON :
+			case SINGLETON:
 				this.perClausePointcut = Pointcut.TRUE;
 				return;
-			case PERTARGET : case PERTHIS :
+			case PERTARGET:
+			case PERTHIS:
 				AspectJExpressionPointcut ajexp = new AspectJExpressionPointcut();
-				ajexp.setLocation("@Aspect annotation on " + aspectClass.getName());
+				ajexp.setLocation(aspectClass.getName());
 				ajexp.setExpression(findPerClause(aspectClass));
+				ajexp.setPointcutDeclarationScope(aspectClass);
 				this.perClausePointcut = ajexp;
 				return;
-			case PERTYPEWITHIN :
+			case PERTYPEWITHIN:
 				// Works with a type pattern
 				this.perClausePointcut = new ComposablePointcut(new TypePatternClassFilter(findPerClause(aspectClass)));
 				return;
-			default :
+			default:
 				throw new AopConfigException(
 						"PerClause " + ajType.getPerClause().getKind() + " not supported by Spring AOP for " + aspectClass);
 		}
@@ -125,10 +126,8 @@ public class AspectMetadata implements Serializable {
 	 * Extract contents from String of form {@code pertarget(contents)}.
 	 */
 	private String findPerClause(Class<?> aspectClass) {
-		// TODO when AspectJ provides this, we can remove this hack. Hence we don't
-		// bother to make it elegant. Or efficient. Or robust :-)
 		String str = aspectClass.getAnnotation(Aspect.class).value();
-		str = str.substring(str.indexOf("(") + 1);
+		str = str.substring(str.indexOf('(') + 1);
 		str = str.substring(0, str.length() - 1);
 		return str;
 	}
@@ -149,7 +148,7 @@ public class AspectMetadata implements Serializable {
 	}

 	/**
-	 * Return the aspect class.
+	 * Return the aspect name.
 	 */
 	public String getAspectName() {
 		return this.aspectName;
@@ -97,8 +97,19 @@ public class BeanFactoryAspectInstanceFactory implements MetadataAwareAspectInst

 	@Override
 	public Object getAspectCreationMutex() {
-		return (this.beanFactory instanceof ConfigurableBeanFactory ?
-				((ConfigurableBeanFactory) this.beanFactory).getSingletonMutex() : this);
+		if (this.beanFactory != null) {
+			if (this.beanFactory.isSingleton(name)) {
+				// Rely on singleton semantics provided by the factory -> no local lock.
+				return null;
+			}
+			else if (this.beanFactory instanceof ConfigurableBeanFactory) {
+				// No singleton guarantees from the factory -> let's lock locally but
+				// reuse the factory's singleton lock, just in case a lazy dependency
+				// of our advice bean happens to trigger the singleton lock implicitly...
+				return ((ConfigurableBeanFactory) this.beanFactory).getSingletonMutex();
+			}
+		}
+		return this;
 	}

 	/**
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -17,10 +17,10 @@
 package org.springframework.aop.aspectj.annotation;

 import java.util.Collections;
-import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;

 import org.aspectj.lang.reflect.PerClauseKind;

@@ -43,12 +43,12 @@ public class BeanFactoryAspectJAdvisorsBuilder {

 	private final AspectJAdvisorFactory advisorFactory;

-	private List<String> aspectBeanNames;
+	private volatile List<String> aspectBeanNames;

-	private final Map<String, List<Advisor>> advisorsCache = new HashMap<String, List<Advisor>>();
+	private final Map<String, List<Advisor>> advisorsCache = new ConcurrentHashMap<String, List<Advisor>>();

 	private final Map<String, MetadataAwareAspectInstanceFactory> aspectFactoryCache =
-			new HashMap<String, MetadataAwareAspectInstanceFactory>();
+			new ConcurrentHashMap<String, MetadataAwareAspectInstanceFactory>();


 	/**
@@ -56,7 +56,7 @@ public class BeanFactoryAspectJAdvisorsBuilder {
 	 * @param beanFactory the ListableBeanFactory to scan
 	 */
 	public BeanFactoryAspectJAdvisorsBuilder(ListableBeanFactory beanFactory) {
-		this(beanFactory, new ReflectiveAspectJAdvisorFactory());
+		this(beanFactory, new ReflectiveAspectJAdvisorFactory(beanFactory));
 	}

 	/**
@@ -80,56 +80,57 @@ public class BeanFactoryAspectJAdvisorsBuilder {
 	 * @see #isEligibleBean
 	 */
 	public List<Advisor> buildAspectJAdvisors() {
-		List<String> aspectNames = null;
+		List<String> aspectNames = this.aspectBeanNames;

-		synchronized (this) {
-			aspectNames = this.aspectBeanNames;
-			if (aspectNames == null) {
-				List<Advisor> advisors = new LinkedList<Advisor>();
-				aspectNames = new LinkedList<String>();
-				String[] beanNames =
-						BeanFactoryUtils.beanNamesForTypeIncludingAncestors(this.beanFactory, Object.class, true, false);
-				for (String beanName : beanNames) {
-					if (!isEligibleBean(beanName)) {
-						continue;
-					}
-					// We must be careful not to instantiate beans eagerly as in this
-					// case they would be cached by the Spring container but would not
-					// have been weaved
-					Class<?> beanType = this.beanFactory.getType(beanName);
-					if (beanType == null) {
-						continue;
-					}
-					if (this.advisorFactory.isAspect(beanType)) {
-						aspectNames.add(beanName);
-						AspectMetadata amd = new AspectMetadata(beanType, beanName);
-						if (amd.getAjType().getPerClause().getKind() == PerClauseKind.SINGLETON) {
-							MetadataAwareAspectInstanceFactory factory =
-									new BeanFactoryAspectInstanceFactory(this.beanFactory, beanName);
-							List<Advisor> classAdvisors = this.advisorFactory.getAdvisors(factory);
-							if (this.beanFactory.isSingleton(beanName)) {
-								this.advisorsCache.put(beanName, classAdvisors);
+		if (aspectNames == null) {
+			synchronized (this) {
+				aspectNames = this.aspectBeanNames;
+				if (aspectNames == null) {
+					List<Advisor> advisors = new LinkedList<Advisor>();
+					aspectNames = new LinkedList<String>();
+					String[] beanNames = BeanFactoryUtils.beanNamesForTypeIncludingAncestors(
+							this.beanFactory, Object.class, true, false);
+					for (String beanName : beanNames) {
+						if (!isEligibleBean(beanName)) {
+							continue;
+						}
+						// We must be careful not to instantiate beans eagerly as in this case they
+						// would be cached by the Spring container but would not have been weaved.
+						Class<?> beanType = this.beanFactory.getType(beanName);
+						if (beanType == null) {
+							continue;
+						}
+						if (this.advisorFactory.isAspect(beanType)) {
+							aspectNames.add(beanName);
+							AspectMetadata amd = new AspectMetadata(beanType, beanName);
+							if (amd.getAjType().getPerClause().getKind() == PerClauseKind.SINGLETON) {
+								MetadataAwareAspectInstanceFactory factory =
+										new BeanFactoryAspectInstanceFactory(this.beanFactory, beanName);
+								List<Advisor> classAdvisors = this.advisorFactory.getAdvisors(factory);
+								if (this.beanFactory.isSingleton(beanName)) {
+									this.advisorsCache.put(beanName, classAdvisors);
+								}
+								else {
+									this.aspectFactoryCache.put(beanName, factory);
+								}
+								advisors.addAll(classAdvisors);
 							}
 							else {
+								// Per target or per this.
+								if (this.beanFactory.isSingleton(beanName)) {
+									throw new IllegalArgumentException("Bean with name '" + beanName +
+											"' is a singleton, but aspect instantiation model is not singleton");
+								}
+								MetadataAwareAspectInstanceFactory factory =
+										new PrototypeAspectInstanceFactory(this.beanFactory, beanName);
 								this.aspectFactoryCache.put(beanName, factory);
+								advisors.addAll(this.advisorFactory.getAdvisors(factory));
 							}
-							advisors.addAll(classAdvisors);
-						}
-						else {
-							// Per target or per this.
-							if (this.beanFactory.isSingleton(beanName)) {
-								throw new IllegalArgumentException("Bean with name '" + beanName +
-										"' is a singleton, but aspect instantiation model is not singleton");
-							}
-							MetadataAwareAspectInstanceFactory factory =
-									new PrototypeAspectInstanceFactory(this.beanFactory, beanName);
-							this.aspectFactoryCache.put(beanName, factory);
-							advisors.addAll(this.advisorFactory.getAdvisors(factory));
 						}
 					}
+					this.aspectBeanNames = aspectNames;
+					return advisors;
 				}
-				this.aspectBeanNames = aspectNames;
-				return advisors;
 			}
 		}

@@ -48,9 +48,15 @@ public class LazySingletonAspectInstanceFactoryDecorator implements MetadataAwar
 	@Override
 	public Object getAspectInstance() {
 		if (this.materialized == null) {
-			synchronized (this.maaif.getAspectCreationMutex()) {
-				if (this.materialized == null) {
-					this.materialized = this.maaif.getAspectInstance();
+			Object mutex = this.maaif.getAspectCreationMutex();
+			if (mutex == null) {
+				this.materialized = this.maaif.getAspectInstance();
+			}
+			else {
+				synchronized (mutex) {
+					if (this.materialized == null) {
+						this.materialized = this.maaif.getAspectInstance();
+					}
 				}
 			}
 		}
@@ -41,7 +41,7 @@ public interface MetadataAwareAspectInstanceFactory extends AspectInstanceFactor

 	/**
 	 * Return the best possible creation mutex for this factory.
-	 * @return the mutex object (never {@code null})
+	 * @return the mutex object (may be {@code null} for no mutex to use)
 	 * @since 4.3
 	 */
 	Object getAspectCreationMutex();
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -46,6 +46,7 @@ import org.springframework.aop.aspectj.AspectJMethodBeforeAdvice;
 import org.springframework.aop.aspectj.DeclareParentsAdvisor;
 import org.springframework.aop.framework.AopConfigException;
 import org.springframework.aop.support.DefaultPointcutAdvisor;
+import org.springframework.beans.factory.BeanFactory;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.convert.converter.ConvertingComparator;
@@ -95,6 +96,30 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
 	}


+	private final BeanFactory beanFactory;
+
+
+	/**
+	 * Create a new {@code ReflectiveAspectJAdvisorFactory}.
+	 */
+	public ReflectiveAspectJAdvisorFactory() {
+		this(null);
+	}
+
+	/**
+	 * Create a new {@code ReflectiveAspectJAdvisorFactory}, propagating the given
+	 * {@link BeanFactory} to the created {@link AspectJExpressionPointcut} instances,
+	 * for bean pointcut handling as well as consistent {@link ClassLoader} resolution.
+	 * @param beanFactory the BeanFactory to propagate (may be {@code null}}
+	 * @since 4.3.6
+	 * @see AspectJExpressionPointcut#setBeanFactory
+	 * @see org.springframework.beans.factory.config.ConfigurableBeanFactory#getBeanClassLoader()
+	 */
+	public ReflectiveAspectJAdvisorFactory(BeanFactory beanFactory) {
+		this.beanFactory = beanFactory;
+	}
+
+
 	@Override
 	public List<Advisor> getAdvisors(MetadataAwareAspectInstanceFactory aspectInstanceFactory) {
 		Class<?> aspectClass = aspectInstanceFactory.getAspectMetadata().getAspectClass();
@@ -161,9 +186,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
 		}

 		if (DeclareParents.class == declareParents.defaultImpl()) {
-			// This is what comes back if it wasn't set. This seems bizarre...
-			// TODO this restriction possibly should be relaxed
-			throw new IllegalStateException("defaultImpl must be set on DeclareParents");
+			throw new IllegalStateException("'defaultImpl' attribute must be set on DeclareParents");
 		}

 		return new DeclareParentsAdvisor(
@@ -197,6 +220,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
 		AspectJExpressionPointcut ajexp =
 				new AspectJExpressionPointcut(candidateAspectClass, new String[0], new Class<?>[0]);
 		ajexp.setExpression(aspectJAnnotation.getPointcutExpression());
+		ajexp.setBeanFactory(this.beanFactory);
 		return ajexp;
 	}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -71,7 +71,7 @@ public abstract class AbstractInterceptorDrivenBeanDefinitionDecorator implement
 		BeanDefinition interceptorDefinition = createInterceptorDefinition(node);

 		// generate name and register the interceptor
-		String interceptorName = existingBeanName + "." + getInterceptorNameSuffix(interceptorDefinition);
+		String interceptorName = existingBeanName + '.' + getInterceptorNameSuffix(interceptorDefinition);
 		BeanDefinitionReaderUtils.registerBeanDefinition(
 				new BeanDefinitionHolder(interceptorDefinition, interceptorName), registry);

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -81,11 +81,11 @@ public abstract class AopNamespaceUtils {

 	private static void useClassProxyingIfNecessary(BeanDefinitionRegistry registry, Element sourceElement) {
 		if (sourceElement != null) {
-			boolean proxyTargetClass = Boolean.valueOf(sourceElement.getAttribute(PROXY_TARGET_CLASS_ATTRIBUTE));
+			boolean proxyTargetClass = Boolean.parseBoolean(sourceElement.getAttribute(PROXY_TARGET_CLASS_ATTRIBUTE));
 			if (proxyTargetClass) {
 				AopConfigUtils.forceAutoProxyCreatorToUseClassProxying(registry);
 			}
-			boolean exposeProxy = Boolean.valueOf(sourceElement.getAttribute(EXPOSE_PROXY_ATTRIBUTE));
+			boolean exposeProxy = Boolean.parseBoolean(sourceElement.getAttribute(EXPOSE_PROXY_ATTRIBUTE));
 			if (exposeProxy) {
 				AopConfigUtils.forceAutoProxyCreatorToExposeProxy(registry);
 			}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -21,8 +21,8 @@ import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.BeanFactoryAware;
 import org.springframework.beans.factory.config.ConfigurableBeanFactory;
 import org.springframework.core.Ordered;
+import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
-import org.springframework.util.StringUtils;

 /**
 * Implementation of {@link AspectInstanceFactory} that locates the aspect from the
@@ -50,9 +50,7 @@ public class SimpleBeanFactoryAwareAspectInstanceFactory implements AspectInstan
 	@Override
 	public void setBeanFactory(BeanFactory beanFactory) {
 		this.beanFactory = beanFactory;
-		if (!StringUtils.hasText(this.aspectBeanName)) {
-			throw new IllegalArgumentException("'aspectBeanName' is required");
-		}
+		Assert.notNull(this.aspectBeanName, "'aspectBeanName' is required");
 	}


@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -234,7 +234,7 @@ public class AdvisedSupport extends ProxyConfig implements Advised {

 	@Override
 	public Class<?>[] getProxiedInterfaces() {
-		return this.interfaces.toArray(new Class<?>[this.interfaces.size()]);
+		return ClassUtils.toClassArray(this.interfaces);
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -43,6 +43,25 @@ import org.springframework.util.ObjectUtils;
 */
 public abstract class AopProxyUtils {

+	/**
+	 * Obtain the singleton target object behind the given proxy, if any.
+	 * @param candidate the (potential) proxy to check
+	 * @return the singleton target object managed in a {@link SingletonTargetSource},
+	 * or {@code null} in any other case (not a proxy, not an existing singleton target)
+	 * @since 4.3.8
+	 * @see Advised#getTargetSource()
+	 * @see SingletonTargetSource#getTarget()
+	 */
+	public static Object getSingletonTarget(Object candidate) {
+		if (candidate instanceof Advised) {
+			TargetSource targetSource = ((Advised) candidate).getTargetSource();
+			if (targetSource instanceof SingletonTargetSource) {
+				return ((SingletonTargetSource) targetSource).getTarget();
+			}
+		}
+		return null;
+	}
+
 	/**
 	 * Determine the ultimate target class of the given bean instance, traversing
 	 * not only a top-level proxy but any number of nested proxies as well &mdash;
@@ -59,14 +78,7 @@ public abstract class AopProxyUtils {
 		Class<?> result = null;
 		while (current instanceof TargetClassAware) {
 			result = ((TargetClassAware) current).getTargetClass();
-			Object nested = null;
-			if (current instanceof Advised) {
-				TargetSource targetSource = ((Advised) current).getTargetSource();
-				if (targetSource instanceof SingletonTargetSource) {
-					nested = ((SingletonTargetSource) targetSource).getTarget();
-				}
-			}
-			current = nested;
+			current = getSingletonTarget(current);
 		}
 		if (result == null) {
 			result = (AopUtils.isCglibProxy(candidate) ? candidate.getClass().getSuperclass() : candidate.getClass());
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import java.lang.reflect.UndeclaredThrowableException;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.WeakHashMap;

 import org.aopalliance.aop.Advice;
@@ -56,9 +57,6 @@ import org.springframework.util.ObjectUtils;
 /**
 * CGLIB-based {@link AopProxy} implementation for the Spring AOP framework.
 *
- * <p>Formerly named {@code Cglib2AopProxy}, as of Spring 3.2, this class depends on
- * Spring's own internally repackaged version of CGLIB 3.</i>.
- *
 * <p>Objects of this type should be obtained through proxy factories,
 * configured by an {@link AdvisedSupport} object. This class is internal
 * to Spring's AOP framework and need not be used directly by client code.
@@ -203,18 +201,16 @@ class CglibAopProxy implements AopProxy, Serializable {
 			return createProxyClassAndInstance(enhancer, callbacks);
 		}
 		catch (CodeGenerationException ex) {
-			throw new AopConfigException("Could not generate CGLIB subclass of class [" +
-					this.advised.getTargetClass() + "]: " +
-					"Common causes of this problem include using a final class or a non-visible class",
+			throw new AopConfigException("Could not generate CGLIB subclass of " + this.advised.getTargetClass() +
+					": Common causes of this problem include using a final class or a non-visible class",
 					ex);
 		}
 		catch (IllegalArgumentException ex) {
-			throw new AopConfigException("Could not generate CGLIB subclass of class [" +
-					this.advised.getTargetClass() + "]: " +
-					"Common causes of this problem include using a final class or a non-visible class",
+			throw new AopConfigException("Could not generate CGLIB subclass of " + this.advised.getTargetClass() +
+					": Common causes of this problem include using a final class or a non-visible class",
 					ex);
 		}
-		catch (Exception ex) {
+		catch (Throwable ex) {
 			// TargetSource.getTarget() failed
 			throw new AopConfigException("Unexpected AOP exception", ex);
 		}
@@ -241,10 +237,11 @@ class CglibAopProxy implements AopProxy, Serializable {
 	 * validates it if not.
 	 */
 	private void validateClassIfNecessary(Class<?> proxySuperClass, ClassLoader proxyClassLoader) {
-		if (logger.isInfoEnabled()) {
+		if (logger.isWarnEnabled()) {
 			synchronized (validatedClasses) {
 				if (!validatedClasses.containsKey(proxySuperClass)) {
-					doValidateClass(proxySuperClass, proxyClassLoader);
+					doValidateClass(proxySuperClass, proxyClassLoader,
+							ClassUtils.getAllInterfacesForClassAsSet(proxySuperClass));
 					validatedClasses.put(proxySuperClass, Boolean.TRUE);
 				}
 			}
@@ -255,30 +252,35 @@ class CglibAopProxy implements AopProxy, Serializable {
 	 * Checks for final methods on the given {@code Class}, as well as package-visible
 	 * methods across ClassLoaders, and writes warnings to the log for each one found.
 	 */
-	private void doValidateClass(Class<?> proxySuperClass, ClassLoader proxyClassLoader) {
-		if (Object.class != proxySuperClass) {
+	private void doValidateClass(Class<?> proxySuperClass, ClassLoader proxyClassLoader, Set<Class<?>> ifcs) {
+		if (proxySuperClass != Object.class) {
 			Method[] methods = proxySuperClass.getDeclaredMethods();
 			for (Method method : methods) {
 				int mod = method.getModifiers();
-				if (!Modifier.isStatic(mod)) {
+				if (!Modifier.isStatic(mod) && !Modifier.isPrivate(mod)) {
 					if (Modifier.isFinal(mod)) {
-						logger.info("Unable to proxy method [" + method + "] because it is final: " +
-								"All calls to this method via a proxy will NOT be routed to the target instance.");
+						if (implementsInterface(method, ifcs)) {
+							logger.warn("Unable to proxy interface-implementing method [" + method + "] because " +
+									"it is marked as final: Consider using interface-based JDK proxies instead!");
+						}
+						logger.info("Final method [" + method + "] cannot get proxied via CGLIB: " +
+								"Calls to this method will NOT be routed to the target instance and " +
+								"might lead to NPEs against uninitialized fields in the proxy instance.");
 					}
-					else if (!Modifier.isPublic(mod) && !Modifier.isProtected(mod) && !Modifier.isPrivate(mod) &&
+					else if (!Modifier.isPublic(mod) && !Modifier.isProtected(mod) &&
 							proxyClassLoader != null && proxySuperClass.getClassLoader() != proxyClassLoader) {
-						logger.info("Unable to proxy method [" + method + "] because it is package-visible " +
-								"across different ClassLoaders: All calls to this method via a proxy will " +
-								"NOT be routed to the target instance.");
+						logger.info("Method [" + method + "] is package-visible across different ClassLoaders " +
+								"and cannot get proxied via CGLIB: Declare this method as public or protected " +
+								"if you need to support invocations through the proxy.");
 					}
 				}
 			}
-			doValidateClass(proxySuperClass.getSuperclass(), proxyClassLoader);
+			doValidateClass(proxySuperClass.getSuperclass(), proxyClassLoader, ifcs);
 		}
 	}

 	private Callback[] getCallbacks(Class<?> rootClass) throws Exception {
-		// Parameters used for optimisation choices...
+		// Parameters used for optimization choices...
 		boolean exposeProxy = this.advised.isExposeProxy();
 		boolean isFrozen = this.advised.isFrozen();
 		boolean isStatic = this.advised.getTargetSource().isStatic();
@@ -317,14 +319,14 @@ class CglibAopProxy implements AopProxy, Serializable {
 		Callback[] callbacks;

 		// If the target is a static one and the advice chain is frozen,
-		// then we can make some optimisations by sending the AOP calls
+		// then we can make some optimizations by sending the AOP calls
 		// direct to the target using the fixed chain for that method.
 		if (isStatic && isFrozen) {
 			Method[] methods = rootClass.getMethods();
 			Callback[] fixedCallbacks = new Callback[methods.length];
 			this.fixedInterceptorMap = new HashMap<String, Integer>(methods.length);

-			// TODO: small memory optimisation here (can skip creation for methods with no advice)
+			// TODO: small memory optimization here (can skip creation for methods with no advice)
 			for (int x = 0; x < methods.length; x++) {
 				List<Object> chain = this.advised.getInterceptorsAndDynamicInterceptionAdvice(methods[x], rootClass);
 				fixedCallbacks[x] = new FixedChainStaticTargetInterceptor(
@@ -345,25 +347,6 @@ class CglibAopProxy implements AopProxy, Serializable {
 		return callbacks;
 	}

-	/**
-	 * Process a return value. Wraps a return of {@code this} if necessary to be the
-	 * {@code proxy} and also verifies that {@code null} is not returned as a primitive.
-	 */
-	private static Object processReturnType(Object proxy, Object target, Method method, Object retVal) {
-		// Massage return value if necessary
-		if (retVal != null && retVal == target && !RawTargetAccess.class.isAssignableFrom(method.getDeclaringClass())) {
-			// Special case: it returned "this". Note that we can't help
-			// if the target sets a reference to itself in another returned object.
-			retVal = proxy;
-		}
-		Class<?> returnType = method.getReturnType();
-		if (retVal == null && returnType != Void.TYPE && returnType.isPrimitive()) {
-			throw new AopInvocationException(
-					"Null return value from advice does not match primitive return type for: " + method);
-		}
-		return retVal;
-	}
-

 	@Override
 	public boolean equals(Object other) {
@@ -377,6 +360,39 @@ class CglibAopProxy implements AopProxy, Serializable {
 	}


+	/**
+	 * Check whether the given method is declared on any of the given interfaces.
+	 */
+	private static boolean implementsInterface(Method method, Set<Class<?>> ifcs) {
+		for (Class<?> ifc : ifcs) {
+			if (ClassUtils.hasMethod(ifc, method.getName(), method.getParameterTypes())) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Process a return value. Wraps a return of {@code this} if necessary to be the
+	 * {@code proxy} and also verifies that {@code null} is not returned as a primitive.
+	 */
+	private static Object processReturnType(Object proxy, Object target, Method method, Object retVal) {
+		// Massage return value if necessary
+		if (retVal != null && retVal == target &&
+				!RawTargetAccess.class.isAssignableFrom(method.getDeclaringClass())) {
+			// Special case: it returned "this". Note that we can't help
+			// if the target sets a reference to itself in another returned object.
+			retVal = proxy;
+		}
+		Class<?> returnType = method.getReturnType();
+		if (retVal == null && returnType != Void.TYPE && returnType.isPrimitive()) {
+			throw new AopInvocationException(
+					"Null return value from advice does not match primitive return type for: " + method);
+		}
+		return retVal;
+	}
+
+
 	/**
 	 * Serializable replacement for CGLIB's NoOp interface.
 	 * Public to allow use elsewhere in the framework.
@@ -822,51 +838,42 @@ class CglibAopProxy implements AopProxy, Serializable {
 				// Else use the AOP_PROXY.
 				if (isStatic && isFrozen && this.fixedInterceptorMap.containsKey(key)) {
 					if (logger.isDebugEnabled()) {
-						logger.debug("Method has advice and optimisations are enabled: " + method);
+						logger.debug("Method has advice and optimizations are enabled: " + method);
 					}
-					// We know that we are optimising so we can use the FixedStaticChainInterceptors.
+					// We know that we are optimizing so we can use the FixedStaticChainInterceptors.
 					int index = this.fixedInterceptorMap.get(key);
 					return (index + this.fixedInterceptorOffset);
 				}
 				else {
 					if (logger.isDebugEnabled()) {
-						logger.debug("Unable to apply any optimisations to advised method: " + method);
+						logger.debug("Unable to apply any optimizations to advised method: " + method);
 					}
 					return AOP_PROXY;
 				}
 			}
 			else {
-				// See if the return type of the method is outside the class hierarchy
-				// of the target type. If so we know it never needs to have return type
-				// massage and can use a dispatcher.
-				// If the proxy is being exposed, then must use the interceptor the
-				// correct one is already configured. If the target is not static, then
-				// cannot use a dispatcher because the target cannot be released.
+				// See if the return type of the method is outside the class hierarchy of the target type.
+				// If so we know it never needs to have return type massage and can use a dispatcher.
+				// If the proxy is being exposed, then must use the interceptor the correct one is already
+				// configured. If the target is not static, then we cannot use a dispatcher because the
+				// target needs to be explicitly released after the invocation.
 				if (exposeProxy || !isStatic) {
 					return INVOKE_TARGET;
 				}
 				Class<?> returnType = method.getReturnType();
-				if (targetClass == returnType) {
+				if (returnType.isAssignableFrom(targetClass)) {
 					if (logger.isDebugEnabled()) {
-						logger.debug("Method " + method +
-								"has return type same as target type (may return this) - using INVOKE_TARGET");
+						logger.debug("Method return type is assignable from target type and " +
+								"may therefore return 'this' - using INVOKE_TARGET: " + method);
 					}
 					return INVOKE_TARGET;
 				}
-				else if (returnType.isPrimitive() || !returnType.isAssignableFrom(targetClass)) {
-					if (logger.isDebugEnabled()) {
-						logger.debug("Method " + method +
-								" has return type that ensures this cannot be returned- using DISPATCH_TARGET");
-					}
-					return DISPATCH_TARGET;
-				}
 				else {
 					if (logger.isDebugEnabled()) {
-						logger.debug("Method " + method +
-								"has return type that is assignable from the target type (may return this) - " +
-								"using INVOKE_TARGET");
+						logger.debug("Method return type ensures 'this' cannot be returned - " +
+								"using DISPATCH_TARGET: " + method);
 					}
-					return INVOKE_TARGET;
+					return DISPATCH_TARGET;
 				}
 			}
 		}
@@ -215,7 +215,8 @@ final class JdkDynamicAopProxy implements AopProxy, InvocationHandler, Serializa

 			// Massage return value if necessary.
 			Class<?> returnType = method.getReturnType();
-			if (retVal != null && retVal == target && returnType.isInstance(proxy) &&
+			if (retVal != null && retVal == target &&
+					returnType != Object.class && returnType.isInstance(proxy) &&
 					!RawTargetAccess.class.isAssignableFrom(method.getDeclaringClass())) {
 				// Special case: it returned "this" and the return type of the method
 				// is type-compatible. Note that we can't help if the target sets
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@

 package org.springframework.aop.framework;

+import java.io.Closeable;
+
 import org.springframework.beans.factory.Aware;
 import org.springframework.beans.factory.BeanClassLoaderAware;
 import org.springframework.beans.factory.DisposableBean;
@@ -48,9 +50,9 @@ public class ProxyProcessorSupport extends ProxyConfig implements Ordered, BeanC


 	/**
-	 * Set the ordering which will apply to this class's implementation
-	 * of Ordered, used when applying multiple processors.
-	 * <p>Default value is {@code Integer.MAX_VALUE}, meaning that it's non-ordered.
+	 * Set the ordering which will apply to this processor's implementation
+	 * of {@link Ordered}, used when applying multiple processors.
+	 * <p>The default value is {@code Ordered.LOWEST_PRECEDENCE}, meaning non-ordered.
 	 * @param order the ordering value
 	 */
 	public void setOrder(int order) {
@@ -127,6 +129,7 @@ public class ProxyProcessorSupport extends ProxyConfig implements Ordered, BeanC
 	 */
 	protected boolean isConfigurationCallbackInterface(Class<?> ifc) {
 		return (InitializingBean.class == ifc || DisposableBean.class == ifc ||
+				Closeable.class == ifc || "java.lang.AutoCloseable".equals(ifc.getName()) ||
 				ObjectUtils.containsElement(ifc.getInterfaces(), Aware.class));
 	}

@@ -139,7 +142,9 @@ public class ProxyProcessorSupport extends ProxyConfig implements Ordered, BeanC
 	 * @return whether the given interface is an internal language interface
 	 */
 	protected boolean isInternalLanguageInterface(Class<?> ifc) {
-		return ifc.getName().equals("groovy.lang.GroovyObject");
+		return (ifc.getName().equals("groovy.lang.GroovyObject") ||
+				ifc.getName().endsWith(".cglib.proxy.Factory") ||
+				ifc.getName().endsWith(".bytebuddy.MockAccess"));
 	}

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -26,7 +26,7 @@ import org.springframework.aop.AfterReturningAdvice;
 import org.springframework.util.Assert;

 /**
- * Interceptor to wrap am {@link org.springframework.aop.AfterReturningAdvice}.
+ * Interceptor to wrap an {@link org.springframework.aop.AfterReturningAdvice}.
 * Used internally by the AOP framework; application developers should not need
 * to use this class directly.
 *
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -54,7 +54,8 @@ public abstract class AbstractAdvisorAutoProxyCreator extends AbstractAutoProxyC
 	public void setBeanFactory(BeanFactory beanFactory) {
 		super.setBeanFactory(beanFactory);
 		if (!(beanFactory instanceof ConfigurableListableBeanFactory)) {
-			throw new IllegalStateException("Cannot use AdvisorAutoProxyCreator without a ConfigurableListableBeanFactory");
+			throw new IllegalArgumentException(
+					"AdvisorAutoProxyCreator requires a ConfigurableListableBeanFactory: " + beanFactory);
 		}
 		initBeanFactory((ConfigurableListableBeanFactory) beanFactory);
 	}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -55,26 +55,25 @@ import org.springframework.util.StringUtils;
 * before invoking the bean itself.
 *
 * <p>This class distinguishes between "common" interceptors: shared for all proxies it
- * creates, and "specific" interceptors: unique per bean instance. There need not
- * be any common interceptors. If there are, they are set using the interceptorNames
- * property. As with ProxyFactoryBean, interceptors names in the current factory
- * are used rather than bean references to allow correct handling of prototype
- * advisors and interceptors: for example, to support stateful mixins.
- * Any advice type is supported for "interceptorNames" entries.
+ * creates, and "specific" interceptors: unique per bean instance. There need not be any
+ * common interceptors. If there are, they are set using the interceptorNames property.
+ * As with {@link org.springframework.aop.framework.ProxyFactoryBean}, interceptors names
+ * in the current factory are used rather than bean references to allow correct handling
+ * of prototype advisors and interceptors: for example, to support stateful mixins.
+ * Any advice type is supported for {@link #setInterceptorNames "interceptorNames"} entries.
 *
 * <p>Such auto-proxying is particularly useful if there's a large number of beans that
 * need to be wrapped with similar proxies, i.e. delegating to the same interceptors.
 * Instead of x repetitive proxy definitions for x target beans, you can register
 * one single such post processor with the bean factory to achieve the same effect.
 *
- * <p>Subclasses can apply any strategy to decide if a bean is to be proxied,
- * e.g. by type, by name, by definition details, etc. They can also return
- * additional interceptors that should just be applied to the specific bean
- * instance. The default concrete implementation is BeanNameAutoProxyCreator,
- * identifying the beans to be proxied via a list of bean names.
+ * <p>Subclasses can apply any strategy to decide if a bean is to be proxied, e.g. by type,
+ * by name, by definition details, etc. They can also return additional interceptors that
+ * should just be applied to the specific bean instance. A simple concrete implementation is
+ * {@link BeanNameAutoProxyCreator}, identifying the beans to be proxied via given names.
 *
 * <p>Any number of {@link TargetSourceCreator} implementations can be used to create
- * a custom target source - for example, to pool prototype objects. Auto-proxying will
+ * a custom target source: for example, to pool prototype objects. Auto-proxying will
 * occur even if there is no advice, as long as a TargetSourceCreator specifies a custom
 * {@link org.springframework.aop.TargetSource}. If there are no TargetSourceCreators set,
 * or if none matches, a {@link org.springframework.aop.target.SingletonTargetSource}
@@ -156,8 +155,8 @@ public abstract class AbstractAutoProxyCreator extends ProxyProcessorSupport
 	}

 	/**
-	 * Specify the AdvisorAdapterRegistry to use.
-	 * Default is the global AdvisorAdapterRegistry.
+	 * Specify the {@link AdvisorAdapterRegistry} to use.
+	 * <p>Default is the global {@link AdvisorAdapterRegistry}.
 	 * @see org.springframework.aop.framework.adapter.GlobalAdvisorAdapterRegistry
 	 */
 	public void setAdvisorAdapterRegistry(AdvisorAdapterRegistry advisorAdapterRegistry) {
@@ -165,18 +164,18 @@ public abstract class AbstractAutoProxyCreator extends ProxyProcessorSupport
 	}

 	/**
-	 * Set custom TargetSourceCreators to be applied in this order.
-	 * If the list is empty, or they all return null, a SingletonTargetSource
+	 * Set custom {@code TargetSourceCreators} to be applied in this order.
+	 * If the list is empty, or they all return null, a {@link SingletonTargetSource}
 	 * will be created for each bean.
 	 * <p>Note that TargetSourceCreators will kick in even for target beans
-	 * where no advices or advisors have been found. If a TargetSourceCreator
-	 * returns a TargetSource for a specific bean, that bean will be proxied
+	 * where no advices or advisors have been found. If a {@code TargetSourceCreator}
+	 * returns a {@link TargetSource} for a specific bean, that bean will be proxied
 	 * in any case.
-	 * <p>TargetSourceCreators can only be invoked if this post processor is used
-	 * in a BeanFactory, and its BeanFactoryAware callback is used.
-	 * @param targetSourceCreators list of TargetSourceCreator.
-	 * Ordering is significant: The TargetSource returned from the first matching
-	 * TargetSourceCreator (that is, the first that returns non-null) will be used.
+	 * <p>{@code TargetSourceCreators} can only be invoked if this post processor is used
+	 * in a {@link BeanFactory} and its {@link BeanFactoryAware} callback is triggered.
+	 * @param targetSourceCreators the list of {@code TargetSourceCreators}.
+	 * Ordering is significant: The {@code TargetSource} returned from the first matching
+	 * {@code TargetSourceCreator} (that is, the first that returns non-null) will be used.
 	 */
 	public void setCustomTargetSourceCreators(TargetSourceCreator... targetSourceCreators) {
 		this.customTargetSourceCreators = targetSourceCreators;
@@ -207,8 +206,8 @@ public abstract class AbstractAutoProxyCreator extends ProxyProcessorSupport
 	}

 	/**
-	 * Return the owning BeanFactory.
-	 * May be {@code null}, as this object doesn't need to belong to a bean factory.
+	 * Return the owning {@link BeanFactory}.
+	 * May be {@code null}, as this post-processor doesn't need to belong to a bean factory.
 	 */
 	protected BeanFactory getBeanFactory() {
 		return this.beanFactory;
@@ -455,10 +454,7 @@ public abstract class AbstractAutoProxyCreator extends ProxyProcessorSupport
 		}

 		Advisor[] advisors = buildAdvisors(beanName, specificInterceptors);
-		for (Advisor advisor : advisors) {
-			proxyFactory.addAdvisor(advisor);
-		}
-
+		proxyFactory.addAdvisors(advisors);
 		proxyFactory.setTargetSource(targetSource);
 		customizeProxyFactory(proxyFactory);

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -19,15 +19,16 @@ package org.springframework.aop.framework.autoproxy;
 import org.springframework.beans.factory.BeanNameAware;

 /**
- * BeanPostProcessor implementation that creates AOP proxies based on all candidate
- * Advisors in the current BeanFactory. This class is completely generic; it contains
- * no special code to handle any particular aspects, such as pooling aspects.
+ * {@code BeanPostProcessor} implementation that creates AOP proxies based on all
+ * candidate {@code Advisor}s in the current {@code BeanFactory}. This class is
+ * completely generic; it contains no special code to handle any particular aspects,
+ * such as pooling aspects.
 *
 * <p>It's possible to filter out advisors - for example, to use multiple post processors
- * of this type in the same factory - by setting the {@code usePrefix} property
- * to true, in which case only advisors beginning with the DefaultAdvisorAutoProxyCreator's
- * bean name followed by a dot (like "aapc.") will be used. This default prefix can be
- * changed from the bean name by setting the {@code advisorBeanNamePrefix} property.
+ * of this type in the same factory - by setting the {@code usePrefix} property to true,
+ * in which case only advisors beginning with the DefaultAdvisorAutoProxyCreator's bean
+ * name followed by a dot (like "aapc.") will be used. This default prefix can be changed
+ * from the bean name by setting the {@code advisorBeanNamePrefix} property.
 * The separator (.) will also be used in this case.
 *
 * @author Rod Johnson
@@ -40,22 +41,22 @@ public class DefaultAdvisorAutoProxyCreator extends AbstractAdvisorAutoProxyCrea
 	public final static String SEPARATOR = ".";


-	private boolean usePrefix;
+	private boolean usePrefix = false;

 	private String advisorBeanNamePrefix;


 	/**
-	 * Set whether to exclude advisors with a certain prefix
-	 * in the bean name.
+	 * Set whether to only include advisors with a certain prefix in the bean name.
+	 * <p>Default is {@code false}, including all beans of type {@code Advisor}.
+	 * @see #setAdvisorBeanNamePrefix
 	 */
 	public void setUsePrefix(boolean usePrefix) {
 		this.usePrefix = usePrefix;
 	}

 	/**
-	 * Return whether to exclude advisors with a certain prefix
-	 * in the bean name.
+	 * Return whether to only include advisors with a certain prefix in the bean name.
 	 */
 	public boolean isUsePrefix() {
 		return this.usePrefix;
@@ -89,7 +90,7 @@ public class DefaultAdvisorAutoProxyCreator extends AbstractAdvisorAutoProxyCrea


 	/**
-	 * Consider Advisor beans with the specified prefix as eligible, if activated.
+	 * Consider {@code Advisor} beans with the specified prefix as eligible, if activated.
 	 * @see #setUsePrefix
 	 * @see #setAdvisorBeanNamePrefix
 	 */
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -22,12 +22,12 @@ import org.aopalliance.intercept.MethodInvocation;

 /**
 * Base class for monitoring interceptors, such as performance monitors.
- * Provides {@code prefix} and {@code suffix} properties
- * that help to classify/group performance monitoring results.
+ * Provides configurable "prefix and "suffix" properties that help to
+ * classify/group performance monitoring results.
 *
- * <p>Subclasses should call the {@code createInvocationTraceName(MethodInvocation)}
- * method to create a name for the given trace that includes information about the
- * method invocation under trace along with the prefix and suffix added as appropriate.
+ * <p>In their {@link #invokeUnderTrace} implementation, subclasses should call the
+ * {@link #createInvocationTraceName} method to create a name for the given trace,
+ * including information about the method invocation along with a prefix/suffix.
 *
 * @author Rob Harrop
 * @author Juergen Hoeller
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -58,6 +58,12 @@ public abstract class AbstractTraceInterceptor implements MethodInterceptor, Ser
 	 */
 	private boolean hideProxyClassNames = false;

+	/**
+	 * Indicates whether to pass an exception to the logger.
+	 * @see #writeToLog(Log, String, Throwable)
+	 */
+	private boolean logExceptionStackTrace = true;
+

 	/**
 	 * Set whether to use a dynamic logger or a static logger.
@@ -98,6 +104,17 @@ public abstract class AbstractTraceInterceptor implements MethodInterceptor, Ser
 		this.hideProxyClassNames = hideProxyClassNames;
 	}

+	/**
+	 * Set whether to pass an exception to the logger, suggesting inclusion
+	 * of its stack trace into the log. Default is "true"; set this to "false"
+	 * in order to reduce the log output to just the trace message (which may
+	 * include the exception class name and exception message, if applicable).
+	 * @since 4.3.10
+	 */
+	public void setLogExceptionStackTrace(boolean logExceptionStackTrace) {
+		this.logExceptionStackTrace = logExceptionStackTrace;
+	}
+

 	/**
 	 * Determines whether or not logging is enabled for the particular {@code MethodInvocation}.
@@ -171,6 +188,40 @@ public abstract class AbstractTraceInterceptor implements MethodInterceptor, Ser
 		return logger.isTraceEnabled();
 	}

+	/**
+	 * Write the supplied trace message to the supplied {@code Log} instance.
+	 * <p>To be called by {@link #invokeUnderTrace} for enter/exit messages.
+	 * <p>Delegates to {@link #writeToLog(Log, String, Throwable)} as the
+	 * ultimate delegate that controls the underlying logger invocation.
+	 * @since 4.3.10
+	 * @see #writeToLog(Log, String, Throwable)
+	 */
+	protected void writeToLog(Log logger, String message) {
+		writeToLog(logger, message, null);
+	}
+
+	/**
+	 * Write the supplied trace message and {@link Throwable} to the
+	 * supplied {@code Log} instance.
+	 * <p>To be called by {@link #invokeUnderTrace} for enter/exit outcomes,
+	 * potentially including an exception. Note that an exception's stack trace
+	 * won't get logged when {@link #setLogExceptionStackTrace} is "false".
+	 * <p>By default messages are written at {@code TRACE} level. Subclasses
+	 * can override this method to control which level the message is written
+	 * at, typically also overriding {@link #isLogEnabled} accordingly.
+	 * @since 4.3.10
+	 * @see #setLogExceptionStackTrace
+	 * @see #isLogEnabled
+	 */
+	protected void writeToLog(Log logger, String message, Throwable ex) {
+		if (ex != null && this.logExceptionStackTrace) {
+			logger.trace(message, ex);
+		}
+		else {
+			logger.trace(message);
+		}
+	}
+

 	/**
 	 * Subclasses must override this method to perform any tracing around the
@@ -180,13 +231,15 @@ public abstract class AbstractTraceInterceptor implements MethodInterceptor, Ser
 	 * <p>By default, the passed-in {@code Log} instance will have log level
 	 * "trace" enabled. Subclasses do not have to check for this again, unless
 	 * they overwrite the {@code isInterceptorEnabled} method to modify
-	 * the default behavior.
+	 * the default behavior, and may delegate to {@code writeToLog} for actual
+	 * messages to be written.
 	 * @param logger the {@code Log} to write trace messages to
 	 * @return the result of the call to {@code MethodInvocation.proceed()}
 	 * @throws Throwable if the call to {@code MethodInvocation.proceed()}
 	 * encountered any errors
-	 * @see #isInterceptorEnabled
 	 * @see #isLogEnabled
+	 * @see #writeToLog(Log, String)
+	 * @see #writeToLog(Log, String, Throwable)
 	 */
 	protected abstract Object invokeUnderTrace(MethodInvocation invocation, Log logger) throws Throwable;

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -228,6 +228,7 @@ public abstract class AsyncExecutionAspectSupport implements BeanFactoryAware {
 				return beanFactory.getBean(TaskExecutor.class);
 			}
 			catch (NoUniqueBeanDefinitionException ex) {
+				logger.debug("Could not find unique TaskExecutor bean", ex);
 				try {
 					return beanFactory.getBean(DEFAULT_TASK_EXECUTOR_BEAN_NAME, Executor.class);
 				}
@@ -241,8 +242,14 @@ public abstract class AsyncExecutionAspectSupport implements BeanFactoryAware {
 			}
 			catch (NoSuchBeanDefinitionException ex) {
 				logger.debug("Could not find default TaskExecutor bean", ex);
+				try {
+					return beanFactory.getBean(DEFAULT_TASK_EXECUTOR_BEAN_NAME, Executor.class);
+				}
+				catch (NoSuchBeanDefinitionException ex2) {
+					logger.info("No task executor bean found for async processing: " +
+							"no bean of type TaskExecutor and no bean named 'taskExecutor' either");
+				}
 				// Giving up -> either using local default executor or none at all...
-				logger.info("No TaskExecutor bean found for async processing");
 			}
 		}
 		return null;
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -128,20 +128,20 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 	/**
 	 * The default message used for writing method entry messages.
 	 */
-	private static final String DEFAULT_ENTER_MESSAGE =
-			"Entering method '" + PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";
+	private static final String DEFAULT_ENTER_MESSAGE = "Entering method '" +
+			PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";

 	/**
 	 * The default message used for writing method exit messages.
 	 */
-	private static final String DEFAULT_EXIT_MESSAGE =
-			"Exiting method '" + PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";
+	private static final String DEFAULT_EXIT_MESSAGE = "Exiting method '" +
+			PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";

 	/**
 	 * The default message used for writing exception messages.
 	 */
-	private static final String DEFAULT_EXCEPTION_MESSAGE =
-			"Exception thrown in method '" + PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";
+	private static final String DEFAULT_EXCEPTION_MESSAGE = "Exception thrown in method '" +
+			PLACEHOLDER_METHOD_NAME + "' of class [" + PLACEHOLDER_TARGET_CLASS_NAME + "]";

 	/**
 	 * The {@code Pattern} used to match placeholders.
@@ -182,14 +182,14 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 	 * </ul>
 	 */
 	public void setEnterMessage(String enterMessage) throws IllegalArgumentException {
-		Assert.hasText(enterMessage, "'enterMessage' must not be empty");
+		Assert.hasText(enterMessage, "enterMessage must not be empty");
 		checkForInvalidPlaceholders(enterMessage);
 		Assert.doesNotContain(enterMessage, PLACEHOLDER_RETURN_VALUE,
-				"enterMessage cannot contain placeholder [" + PLACEHOLDER_RETURN_VALUE + "]");
+				"enterMessage cannot contain placeholder " + PLACEHOLDER_RETURN_VALUE);
 		Assert.doesNotContain(enterMessage, PLACEHOLDER_EXCEPTION,
-				"enterMessage cannot contain placeholder [" + PLACEHOLDER_EXCEPTION + "]");
+				"enterMessage cannot contain placeholder " + PLACEHOLDER_EXCEPTION);
 		Assert.doesNotContain(enterMessage, PLACEHOLDER_INVOCATION_TIME,
-				"enterMessage cannot contain placeholder [" + PLACEHOLDER_INVOCATION_TIME + "]");
+				"enterMessage cannot contain placeholder " + PLACEHOLDER_INVOCATION_TIME);
 		this.enterMessage = enterMessage;
 	}

@@ -206,10 +206,10 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 	 * </ul>
 	 */
 	public void setExitMessage(String exitMessage) {
-		Assert.hasText(exitMessage, "'exitMessage' must not be empty");
+		Assert.hasText(exitMessage, "exitMessage must not be empty");
 		checkForInvalidPlaceholders(exitMessage);
 		Assert.doesNotContain(exitMessage, PLACEHOLDER_EXCEPTION,
-				"exitMessage cannot contain placeholder [" + PLACEHOLDER_EXCEPTION + "]");
+				"exitMessage cannot contain placeholder" + PLACEHOLDER_EXCEPTION);
 		this.exitMessage = exitMessage;
 	}

@@ -225,12 +225,10 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 	 * </ul>
 	 */
 	public void setExceptionMessage(String exceptionMessage) {
-		Assert.hasText(exceptionMessage, "'exceptionMessage' must not be empty");
+		Assert.hasText(exceptionMessage, "exceptionMessage must not be empty");
 		checkForInvalidPlaceholders(exceptionMessage);
 		Assert.doesNotContain(exceptionMessage, PLACEHOLDER_RETURN_VALUE,
-				"exceptionMessage cannot contain placeholder [" + PLACEHOLDER_RETURN_VALUE + "]");
-		Assert.doesNotContain(exceptionMessage, PLACEHOLDER_INVOCATION_TIME,
-				"exceptionMessage cannot contain placeholder [" + PLACEHOLDER_INVOCATION_TIME + "]");
+				"exceptionMessage cannot contain placeholder " + PLACEHOLDER_RETURN_VALUE);
 		this.exceptionMessage = exceptionMessage;
 	}

@@ -246,7 +244,7 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 	 */
 	@Override
 	protected Object invokeUnderTrace(MethodInvocation invocation, Log logger) throws Throwable {
-		String name = invocation.getMethod().getDeclaringClass().getName() + "." + invocation.getMethod().getName();
+		String name = ClassUtils.getQualifiedMethodName(invocation.getMethod());
 		StopWatch stopWatch = new StopWatch(name);
 		Object returnValue = null;
 		boolean exitThroughException = false;
@@ -262,8 +260,8 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 				stopWatch.stop();
 			}
 			exitThroughException = true;
-			writeToLog(logger,
-					replacePlaceholders(this.exceptionMessage, invocation, null, ex, stopWatch.getTotalTimeMillis()), ex);
+			writeToLog(logger, replacePlaceholders(
+					this.exceptionMessage, invocation, null, ex, stopWatch.getTotalTimeMillis()), ex);
 			throw ex;
 		}
 		finally {
@@ -271,35 +269,12 @@ public class CustomizableTraceInterceptor extends AbstractTraceInterceptor {
 				if (stopWatch.isRunning()) {
 					stopWatch.stop();
 				}
-				writeToLog(logger,
-						replacePlaceholders(this.exitMessage, invocation, returnValue, null, stopWatch.getTotalTimeMillis()));
+				writeToLog(logger, replacePlaceholders(
+						this.exitMessage, invocation, returnValue, null, stopWatch.getTotalTimeMillis()));
 			}
 		}
 	}

-	/**
-	 * Writes the supplied message to the supplied {@code Log} instance.
-	 * @see #writeToLog(org.apache.commons.logging.Log, String, Throwable)
-	 */
-	protected void writeToLog(Log logger, String message) {
-		writeToLog(logger, message, null);
-	}
-
-	/**
-	 * Writes the supplied message and {@link Throwable} to the
-	 * supplied {@code Log} instance. By default messages are written
-	 * at {@code TRACE} level. Sub-classes can override this method
-	 * to control which level the message is written at.
-	 */
-	protected void writeToLog(Log logger, String message, Throwable ex) {
-		if (ex != null) {
-			logger.trace(message, ex);
-		}
-		else {
-			logger.trace(message);
-		}
-	}
-
 	/**
 	 * Replace the placeholders in the given message with the supplied values,
 	 * or values derived from those supplied.
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -121,7 +121,7 @@ public class JamonPerformanceMonitorInterceptor extends AbstractMonitoringInterc
 		finally {
 			monitor.stop();
 			if (!this.trackAllInvocations || isLogEnabled(logger)) {
-				logger.trace("JAMon performance statistics for method [" + name + "]:\n" + monitor);
+				writeToLog(logger, "JAMon performance statistics for method [" + name + "]:\n" + monitor);
 			}
 		}
 	}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -63,7 +63,7 @@ public class PerformanceMonitorInterceptor extends AbstractMonitoringInterceptor
 		}
 		finally {
 			stopWatch.stop();
-			logger.trace(stopWatch.shortSummary());
+			writeToLog(logger, stopWatch.shortSummary());
 		}
 	}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -55,14 +55,14 @@ public class SimpleTraceInterceptor extends AbstractTraceInterceptor {
 	@Override
 	protected Object invokeUnderTrace(MethodInvocation invocation, Log logger) throws Throwable {
 		String invocationDescription = getInvocationDescription(invocation);
-		logger.trace("Entering " + invocationDescription);
+		writeToLog(logger, "Entering " + invocationDescription);
 		try {
 			Object rval = invocation.proceed();
-			logger.trace("Exiting " + invocationDescription);
+			writeToLog(logger, "Exiting " + invocationDescription);
 			return rval;
 		}
 		catch (Throwable ex) {
-			logger.trace("Exception thrown in " + invocationDescription, ex);
+			writeToLog(logger, "Exception thrown in " + invocationDescription, ex);
 			throw ex;
 		}
 	}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -89,7 +89,7 @@ public abstract class ScopedProxyUtils {
 	}

 	/**
-	 * Generates the bean name that is used within the scoped proxy to reference the target bean.
+	 * Generate the bean name that is used within the scoped proxy to reference the target bean.
 	 * @param originalBeanName the original name of bean
 	 * @return the generated bean to be used to reference the target bean
 	 */
@@ -46,7 +46,7 @@ public abstract class AbstractBeanFactoryPointcutAdvisor extends AbstractPointcu

 	private BeanFactory beanFactory;

-	private transient Advice advice;
+	private transient volatile Advice advice;

 	private transient volatile Object adviceMonitor = new Object();

@@ -98,12 +98,28 @@ public abstract class AbstractBeanFactoryPointcutAdvisor extends AbstractPointcu

 	@Override
 	public Advice getAdvice() {
-		synchronized (this.adviceMonitor) {
-			if (this.advice == null && this.adviceBeanName != null) {
-				Assert.state(this.beanFactory != null, "BeanFactory must be set to resolve 'adviceBeanName'");
-				this.advice = this.beanFactory.getBean(this.adviceBeanName, Advice.class);
+		Advice advice = this.advice;
+		if (advice != null || this.adviceBeanName == null) {
+			return advice;
+		}
+
+		Assert.state(this.beanFactory != null, "BeanFactory must be set to resolve 'adviceBeanName'");
+		if (this.beanFactory.isSingleton(this.adviceBeanName)) {
+			// Rely on singleton semantics provided by the factory.
+			advice = this.beanFactory.getBean(this.adviceBeanName, Advice.class);
+			this.advice = advice;
+			return advice;
+		}
+		else {
+			// No singleton guarantees from the factory -> let's lock locally but
+			// reuse the factory's singleton lock, just in case a lazy dependency
+			// of our advice bean happens to trigger the singleton lock implicitly...
+			synchronized (this.adviceMonitor) {
+				if (this.advice == null) {
+					this.advice = this.beanFactory.getBean(this.adviceBeanName, Advice.class);
+				}
+				return this.advice;
 			}
-			return this.advice;
 		}
 	}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import java.lang.reflect.Method;
 import java.util.Arrays;

 import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;

@@ -129,8 +130,8 @@ public abstract class AbstractRegexpMethodPointcut extends StaticMethodMatcherPo
 	 */
 	@Override
 	public boolean matches(Method method, Class<?> targetClass) {
-		return ((targetClass != null && matchesPattern(targetClass.getName() + "." + method.getName())) ||
-				matchesPattern(method.getDeclaringClass().getName() + "." + method.getName()));
+		return ((targetClass != null && matchesPattern(ClassUtils.getQualifiedMethodName(method, targetClass))) ||
+				matchesPattern(ClassUtils.getQualifiedMethodName(method)));
 	}

 	/**
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -22,7 +22,6 @@ import org.springframework.aop.ClassFilter;
 import org.springframework.aop.MethodMatcher;
 import org.springframework.aop.Pointcut;
 import org.springframework.util.Assert;
-import org.springframework.util.ObjectUtils;

 /**
 * Convenient class for building up pointcuts. All methods return
@@ -188,21 +187,14 @@ public class ComposablePointcut implements Pointcut, Serializable {
 		if (!(other instanceof ComposablePointcut)) {
 			return false;
 		}
-		ComposablePointcut that = (ComposablePointcut) other;
-		return ObjectUtils.nullSafeEquals(that.classFilter, this.classFilter) &&
-				ObjectUtils.nullSafeEquals(that.methodMatcher, this.methodMatcher);
+		ComposablePointcut otherPointcut = (ComposablePointcut) other;
+		return (this.classFilter.equals(otherPointcut.classFilter) &&
+				this.methodMatcher.equals(otherPointcut.methodMatcher));
 	}

 	@Override
 	public int hashCode() {
-		int code = 17;
-		if (this.classFilter != null) {
-			code = 37 * code + this.classFilter.hashCode();
-		}
-		if (this.methodMatcher != null) {
-			code = 37 * code + this.methodMatcher.hashCode();
-		}
-		return code;
+		return this.classFilter.hashCode() * 37 + this.methodMatcher.hashCode();
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -22,8 +22,6 @@ import java.lang.reflect.Method;
 import org.springframework.aop.ClassFilter;
 import org.springframework.aop.MethodMatcher;
 import org.springframework.aop.Pointcut;
-import org.springframework.core.ControlFlow;
-import org.springframework.core.ControlFlowFactory;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;

@@ -34,7 +32,7 @@ import org.springframework.util.ObjectUtils;
 *
 * @author Rod Johnson
 * @author Rob Harrop
- * @see org.springframework.core.ControlFlow
+ * @author Juergen Hoeller
 */
@SuppressWarnings("serial")
 public class ControlFlowPointcut implements Pointcut, ClassFilter, MethodMatcher, Serializable {
@@ -43,7 +41,7 @@ public class ControlFlowPointcut implements Pointcut, ClassFilter, MethodMatcher

 	private String methodName;

-	private int evaluations;
+	private volatile int evaluations;


 	/**
@@ -55,11 +53,11 @@ public class ControlFlowPointcut implements Pointcut, ClassFilter, MethodMatcher
 	}

 	/**
-	 * Construct a new pointcut that matches all calls below the
-	 * given method in the given class. If the method name is null,
-	 * matches all control flows below that class.
+	 * Construct a new pointcut that matches all calls below the given method
+	 * in the given class. If no method name is given, matches all control flows
+	 * below the given class.
 	 * @param clazz the clazz
-	 * @param methodName the name of the method
+	 * @param methodName the name of the method (may be {@code null})
 	 */
 	public ControlFlowPointcut(Class<?> clazz, String methodName) {
 		Assert.notNull(clazz, "Class must not be null");
@@ -93,8 +91,14 @@ public class ControlFlowPointcut implements Pointcut, ClassFilter, MethodMatcher
 	@Override
 	public boolean matches(Method method, Class<?> targetClass, Object... args) {
 		this.evaluations++;
-		ControlFlow cflow = ControlFlowFactory.createControlFlow();
-		return (this.methodName != null ? cflow.under(this.clazz, this.methodName) : cflow.under(this.clazz));
+
+		for (StackTraceElement element : new Throwable().getStackTrace()) {
+			if (element.getClassName().equals(this.clazz.getName()) &&
+					(this.methodName == null || element.getMethodName().equals(this.methodName))) {
+				return true;
+			}
+		}
+		return false;
 	}

 	/**
@@ -130,8 +134,7 @@ public class ControlFlowPointcut implements Pointcut, ClassFilter, MethodMatcher

 	@Override
 	public int hashCode() {
-		int code = 17;
-		code = 37 * code + this.clazz.hashCode();
+		int code = this.clazz.hashCode();
 		if (this.methodName != null) {
 			code = 37 * code + this.methodName.hashCode();
 		}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -45,7 +45,7 @@ public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFil

 	private final Set<Class<?>> interfaces = new LinkedHashSet<Class<?>>();

-	private int order = Integer.MAX_VALUE;
+	private int order = Ordered.LOWEST_PRECEDENCE;


 	/**
@@ -104,7 +104,7 @@ public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFil

 	@Override
 	public Class<?>[] getInterfaces() {
-		return this.interfaces.toArray(new Class<?>[this.interfaces.size()]);
+		return ClassUtils.toClassArray(this.interfaces);
 	}

 	@Override
@@ -118,7 +118,6 @@ public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFil
 		}
 	}

-
 	public void setOrder(int order) {
 		this.order = order;
 	}
@@ -128,7 +127,6 @@ public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFil
 		return this.order;
 	}

-
 	@Override
 	public Advice getAdvice() {
 		return this.advice;
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -53,15 +53,15 @@ public class IntroductionInfoSupport implements IntroductionInfo, Serializable {
 	 * due to the delegate implementing it. Call this method to exclude
 	 * internal interfaces from being visible at the proxy level.
 	 * <p>Does nothing if the interface is not implemented by the delegate.
-	 * @param intf the interface to suppress
+	 * @param ifc the interface to suppress
 	 */
-	public void suppressInterface(Class<?> intf) {
-		this.publishedInterfaces.remove(intf);
+	public void suppressInterface(Class<?> ifc) {
+		this.publishedInterfaces.remove(ifc);
 	}

 	@Override
 	public Class<?>[] getInterfaces() {
-		return this.publishedInterfaces.toArray(new Class<?>[this.publishedInterfaces.size()]);
+		return ClassUtils.toClassArray(this.publishedInterfaces);
 	}

 	/**
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@ import org.springframework.util.PatternMatchUtils;

 /**
 * Pointcut bean for simple method name matches, as alternative to regexp patterns.
- * Does not handle overloaded methods: all methods *with a given name will be eligible.
+ * Does not handle overloaded methods: all methods with a given name will be eligible.
 *
 * @author Juergen Hoeller
 * @author Rod Johnson
@@ -94,7 +94,7 @@ public abstract class Pointcuts {
 	@SuppressWarnings("serial")
 	private static class SetterPointcut extends StaticMethodMatcherPointcut implements Serializable {

-		public static SetterPointcut INSTANCE = new SetterPointcut();
+		public static final SetterPointcut INSTANCE = new SetterPointcut();

 		@Override
 		public boolean matches(Method method, Class<?> targetClass) {
@@ -115,7 +115,7 @@ public abstract class Pointcuts {
 	@SuppressWarnings("serial")
 	private static class GetterPointcut extends StaticMethodMatcherPointcut implements Serializable {

-		public static GetterPointcut INSTANCE = new GetterPointcut();
+		public static final GetterPointcut INSTANCE = new GetterPointcut();

 		@Override
 		public boolean matches(Method method, Class<?> targetClass) {
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -36,10 +36,10 @@ import org.springframework.util.Assert;
 public abstract class StaticMethodMatcherPointcutAdvisor extends StaticMethodMatcherPointcut
 		implements PointcutAdvisor, Ordered, Serializable {

-	private int order = Integer.MAX_VALUE;
-
 	private Advice advice;

+	private int order = Integer.MAX_VALUE;
+

 	/**
 	 * Create a new StaticMethodMatcherPointcutAdvisor,
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -22,7 +22,6 @@ import org.springframework.aop.ClassFilter;
 import org.springframework.aop.MethodMatcher;
 import org.springframework.aop.Pointcut;
 import org.springframework.util.Assert;
-import org.springframework.util.ObjectUtils;

 /**
 * Simple Pointcut that looks for a specific Java 5 annotation
@@ -46,16 +45,15 @@ public class AnnotationMatchingPointcut implements Pointcut {
 	 * @param classAnnotationType the annotation type to look for at the class level
 	 */
 	public AnnotationMatchingPointcut(Class<? extends Annotation> classAnnotationType) {
-		this.classFilter = new AnnotationClassFilter(classAnnotationType);
-		this.methodMatcher = MethodMatcher.TRUE;
+		this(classAnnotationType, false);
 	}

 	/**
 	 * Create a new AnnotationMatchingPointcut for the given annotation type.
 	 * @param classAnnotationType the annotation type to look for at the class level
-	 * @param checkInherited whether to explicitly check the superclasses and
-	 * interfaces for the annotation type as well (even if the annotation type
-	 * is not marked as inherited itself)
+	 * @param checkInherited whether to also check the superclasses and interfaces
+	 * as well as meta-annotations for the annotation type
+	 * @see AnnotationClassFilter#AnnotationClassFilter(Class, boolean)
 	 */
 	public AnnotationMatchingPointcut(Class<? extends Annotation> classAnnotationType, boolean checkInherited) {
 		this.classFilter = new AnnotationClassFilter(classAnnotationType, checkInherited);
@@ -109,21 +107,14 @@ public class AnnotationMatchingPointcut implements Pointcut {
 		if (!(other instanceof AnnotationMatchingPointcut)) {
 			return false;
 		}
-		AnnotationMatchingPointcut that = (AnnotationMatchingPointcut) other;
-		return ObjectUtils.nullSafeEquals(that.classFilter, this.classFilter) &&
-				ObjectUtils.nullSafeEquals(that.methodMatcher, this.methodMatcher);
+		AnnotationMatchingPointcut otherPointcut = (AnnotationMatchingPointcut) other;
+		return (this.classFilter.equals(otherPointcut.classFilter) &&
+				this.methodMatcher.equals(otherPointcut.methodMatcher));
 	}

 	@Override
 	public int hashCode() {
-		int code = 17;
-		if (this.classFilter != null) {
-			code = 37 * code + this.classFilter.hashCode();
-		}
-		if (this.methodMatcher != null) {
-			code = 37 * code + this.methodMatcher.hashCode();
-		}
-		return code;
+		return this.classFilter.hashCode() * 37 + this.methodMatcher.hashCode();
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -60,7 +60,7 @@ public abstract class AbstractBeanFactoryBasedTargetSource implements TargetSour
 	private String targetBeanName;

 	/** Class of the target */
-	private Class<?> targetClass;
+	private volatile Class<?> targetClass;

 	/**
 	 * BeanFactory that owns this TargetSource. We need to hold onto this
@@ -120,21 +120,28 @@ public abstract class AbstractBeanFactoryBasedTargetSource implements TargetSour


 	@Override
-	public synchronized Class<?> getTargetClass() {
-		if (this.targetClass == null && this.beanFactory != null) {
-			// Determine type of the target bean.
-			this.targetClass = this.beanFactory.getType(this.targetBeanName);
-			if (this.targetClass == null) {
-				if (logger.isTraceEnabled()) {
-					logger.trace("Getting bean with name '" + this.targetBeanName + "' in order to determine type");
+	public Class<?> getTargetClass() {
+		Class<?> targetClass = this.targetClass;
+		if (targetClass != null) {
+			return targetClass;
+		}
+		synchronized (this) {
+			// Full check within synchronization, entering the BeanFactory interaction algorithm only once...
+			targetClass = this.targetClass;
+			if (targetClass == null && this.beanFactory != null) {
+				// Determine type of the target bean.
+				targetClass = this.beanFactory.getType(this.targetBeanName);
+				if (targetClass == null) {
+					if (logger.isTraceEnabled()) {
+						logger.trace("Getting bean with name '" + this.targetBeanName + "' for type determination");
+					}
+					Object beanInstance = this.beanFactory.getBean(this.targetBeanName);
+					targetClass = beanInstance.getClass();
 				}
-				Object beanInstance = this.beanFactory.getBean(this.targetBeanName);
-				if (beanInstance != null) {
-					this.targetClass = beanInstance.getClass();
-				}
+				this.targetClass = targetClass;
 			}
+			return targetClass;
 		}
-		return this.targetClass;
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -39,7 +39,7 @@ import org.springframework.aop.TargetSource;
 public abstract class AbstractRefreshableTargetSource implements TargetSource, Refreshable {

 	/** Logger available to subclasses */
-	protected Log logger = LogFactory.getLog(getClass());
+	protected final Log logger = LogFactory.getLog(getClass());

 	protected Object targetObject;

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -37,26 +37,26 @@ import static org.junit.Assert.*;
 * @author Juergen Hoeller
 * @author Chris Beams
 */
-public final class ArgumentBindingTests {
+public class ArgumentBindingTests {

-	@Test(expected=IllegalArgumentException.class)
+	@Test(expected = IllegalArgumentException.class)
 	public void testBindingInPointcutUsedByAdvice() {
 		TestBean tb = new TestBean();
 		AspectJProxyFactory proxyFactory = new AspectJProxyFactory(tb);
 		proxyFactory.addAspect(NamedPointcutWithArgs.class);

-		ITestBean proxiedTestBean = (ITestBean) proxyFactory.getProxy();
-		proxiedTestBean.setName("Supercalifragalisticexpialidocious"); // should throw
+		ITestBean proxiedTestBean = proxyFactory.getProxy();
+		proxiedTestBean.setName("Supercalifragalisticexpialidocious");
 	}

-	@Test(expected=IllegalStateException.class)
+	@Test(expected = IllegalStateException.class)
 	public void testAnnotationArgumentNameBinding() {
 		TransactionalBean tb = new TransactionalBean();
 		AspectJProxyFactory proxyFactory = new AspectJProxyFactory(tb);
 		proxyFactory.addAspect(PointcutWithAnnotationArgument.class);

-		ITransactionalBean proxiedTestBean = (ITransactionalBean) proxyFactory.getProxy();
-		proxiedTestBean.doInTransaction(); // should throw
+		ITransactionalBean proxiedTestBean = proxyFactory.getProxy();
+		proxiedTestBean.doInTransaction();
 	}

 	@Test
@@ -71,6 +71,7 @@ public final class ArgumentBindingTests {
 		assertEquals("formal", pnames[0]);
 	}

+
 	public void methodWithOneParam(String aParam) {
 	}

@@ -100,9 +101,6 @@ public final class ArgumentBindingTests {
 }


-/**
- * @author Juergen Hoeller
- */
@Aspect
 class PointcutWithAnnotationArgument {

@@ -115,9 +113,6 @@ class PointcutWithAnnotationArgument {
 }


-/**
- * @author Adrian Colyer
- */
@Aspect
 class NamedPointcutWithArgs {

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -47,7 +47,7 @@ public final class ConcurrencyThrottleInterceptorTests {
 	public void testSerializable() throws Exception {
 		DerivedTestBean tb = new DerivedTestBean();
 		ProxyFactory proxyFactory = new ProxyFactory();
-		proxyFactory.setInterfaces(new Class[] {ITestBean.class});
+		proxyFactory.setInterfaces(ITestBean.class);
 		ConcurrencyThrottleInterceptor cti = new ConcurrencyThrottleInterceptor();
 		proxyFactory.addAdvice(cti);
 		proxyFactory.setTarget(tb);
@@ -75,7 +75,7 @@ public final class ConcurrencyThrottleInterceptorTests {
 	private void testMultipleThreads(int concurrencyLimit) {
 		TestBean tb = new TestBean();
 		ProxyFactory proxyFactory = new ProxyFactory();
-		proxyFactory.setInterfaces(new Class[] {ITestBean.class});
+		proxyFactory.setInterfaces(ITestBean.class);
 		ConcurrencyThrottleInterceptor cti = new ConcurrencyThrottleInterceptor();
 		cti.setConcurrencyLimit(concurrencyLimit);
 		proxyFactory.addAdvice(cti);
@@ -95,7 +95,7 @@ public final class ConcurrencyThrottleInterceptorTests {
 				ex.printStackTrace();
 			}
 			threads[i] = new ConcurrencyThread(proxy,
-					i % 2 == 0 ? (Throwable) new OutOfMemoryError() : (Throwable) new IllegalStateException());
+					i % 2 == 0 ? new OutOfMemoryError() : new IllegalStateException());
 			threads[i].start();
 		}
 		for (int i = 0; i < NR_OF_THREADS; i++) {
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -83,7 +83,7 @@ public final class CustomizableTraceInterceptorTests {
 	public void testSunnyDayPathLogsCorrectly() throws Throwable {

 		MethodInvocation methodInvocation = mock(MethodInvocation.class);
-		given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
+		given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString"));
 		given(methodInvocation.getThis()).willReturn(this);

 		Log log = mock(Log.class);
@@ -101,7 +101,7 @@ public final class CustomizableTraceInterceptorTests {
 		MethodInvocation methodInvocation = mock(MethodInvocation.class);

 		IllegalArgumentException exception = new IllegalArgumentException();
-		given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
+		given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString"));
 		given(methodInvocation.getThis()).willReturn(this);
 		given(methodInvocation.proceed()).willThrow(exception);

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -34,7 +34,7 @@ public final class SimpleTraceInterceptorTests {
 	@Test
 	public void testSunnyDayPathLogsCorrectly() throws Throwable {
 		MethodInvocation mi = mock(MethodInvocation.class);
-		given(mi.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
+		given(mi.getMethod()).willReturn(String.class.getMethod("toString"));
 		given(mi.getThis()).willReturn(this);

 		Log log = mock(Log.class);
@@ -48,7 +48,7 @@ public final class SimpleTraceInterceptorTests {
 	@Test
 	public void testExceptionPathStillLogsCorrectly() throws Throwable {
 		MethodInvocation mi = mock(MethodInvocation.class);
-		given(mi.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
+		given(mi.getMethod()).willReturn(String.class.getMethod("toString"));
 		given(mi.getThis()).willReturn(this);
 		IllegalArgumentException exception = new IllegalArgumentException();
 		given(mi.proceed()).willThrow(exception);
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@

 package org.springframework.aop.scope;

+import java.util.Arrays;
+
 import org.junit.Test;

 import org.springframework.beans.factory.support.DefaultListableBeanFactory;
@@ -27,19 +29,24 @@ import static org.springframework.tests.TestResourceUtils.*;

 /**
 * @author Mark Fisher
+ * @author Juergen Hoeller
 * @author Chris Beams
 */
-public final class ScopedProxyAutowireTests {
+public class ScopedProxyAutowireTests {

-	private static final Class<?> CLASS = ScopedProxyAutowireTests.class;
+	private static final Resource SCOPED_AUTOWIRE_FALSE_CONTEXT =
+			qualifiedResource(ScopedProxyAutowireTests.class, "scopedAutowireFalse.xml");
+	private static final Resource SCOPED_AUTOWIRE_TRUE_CONTEXT =
+			qualifiedResource(ScopedProxyAutowireTests.class, "scopedAutowireTrue.xml");

-	private static final Resource SCOPED_AUTOWIRE_TRUE_CONTEXT = qualifiedResource(CLASS, "scopedAutowireTrue.xml");
-	private static final Resource SCOPED_AUTOWIRE_FALSE_CONTEXT = qualifiedResource(CLASS, "scopedAutowireFalse.xml");

 	@Test
 	public void testScopedProxyInheritsAutowireCandidateFalse() {
 		DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
 		new XmlBeanDefinitionReader(bf).loadBeanDefinitions(SCOPED_AUTOWIRE_FALSE_CONTEXT);
+		assertTrue(Arrays.asList(bf.getBeanNamesForType(TestBean.class, false, false)).contains("scoped"));
+		assertTrue(Arrays.asList(bf.getBeanNamesForType(TestBean.class, true, false)).contains("scoped"));
+		assertFalse(bf.containsSingleton("scoped"));
 		TestBean autowired = (TestBean) bf.getBean("autowired");
 		TestBean unscoped = (TestBean) bf.getBean("unscoped");
 		assertSame(unscoped, autowired.getChild());
@@ -49,6 +56,9 @@ public final class ScopedProxyAutowireTests {
 	public void testScopedProxyReplacesAutowireCandidateTrue() {
 		DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
 		new XmlBeanDefinitionReader(bf).loadBeanDefinitions(SCOPED_AUTOWIRE_TRUE_CONTEXT);
+		assertTrue(Arrays.asList(bf.getBeanNamesForType(TestBean.class, true, false)).contains("scoped"));
+		assertTrue(Arrays.asList(bf.getBeanNamesForType(TestBean.class, false, false)).contains("scoped"));
+		assertFalse(bf.containsSingleton("scoped"));
 		TestBean autowired = (TestBean) bf.getBean("autowired");
 		TestBean scoped = (TestBean) bf.getBean("scoped");
 		assertSame(scoped, autowired.getChild());
@@ -1,6 +1,5 @@
-
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -29,27 +28,21 @@ public class NopInterceptor implements MethodInterceptor {

 	private int count;

-	/**
-	 * @see org.aopalliance.intercept.MethodInterceptor#invoke(MethodInvocation)
-	 */
+
 	@Override
 	public Object invoke(MethodInvocation invocation) throws Throwable {
 		increment();
 		return invocation.proceed();
 	}

+	protected void increment() {
+		this.count++;
+	}
+
 	public int getCount() {
 		return this.count;
 	}

-	protected void increment() {
-		++count;
-	}
-
-	@Override
-	public int hashCode() {
-		return 0;
-	}

 	@Override
 	public boolean equals(Object other) {
@@ -62,5 +55,9 @@ public class NopInterceptor implements MethodInterceptor {
 		return this.count == ((NopInterceptor) other).count;
 	}

+	@Override
+	public int hashCode() {
+		return NopInterceptor.class.hashCode();
+	}

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -28,22 +28,10 @@ import org.springframework.util.ObjectUtils;
@SuppressWarnings("serial")
 public class SerializablePerson implements Person, Serializable {

-	private static final long serialVersionUID = 1L;
-
-
 	private String name;

 	private int age;

-	@Override
-	public int getAge() {
-		return age;
-	}
-
-	@Override
-	public void setAge(int age) {
-		this.age = age;
-	}

 	@Override
 	public String getName() {
@@ -55,6 +43,16 @@ public class SerializablePerson implements Person, Serializable {
 		this.name = name;
 	}

+	@Override
+	public int getAge() {
+		return age;
+	}
+
+	@Override
+	public void setAge(int age) {
+		this.age = age;
+	}
+
 	@Override
 	public Object echo(Object o) throws Throwable {
 		if (o instanceof Throwable) {
@@ -63,10 +61,6 @@ public class SerializablePerson implements Person, Serializable {
 		return o;
 	}

-	@Override
-	public int hashCode() {
-		return 0;
-	}

 	@Override
 	public boolean equals(Object other) {
@@ -77,4 +71,9 @@ public class SerializablePerson implements Person, Serializable {
 		return p.age == age && ObjectUtils.nullSafeEquals(name, p.name);
 	}

+	@Override
+	public int hashCode() {
+		return SerializablePerson.class.hashCode();
+	}
+
 }
@@ -1,6 +1,6 @@
 <config xmlns="http://www.springframework.org/schema/aop"
-				xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-				xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

 	<pointcut id="testPointcut" expression="execution(* foo(..)) and within(springbank.dao.AccountDao+)"/>
 	<pointcut id="testPointcut1" expression="execution(* springbank.dao.AccountDao.foo(..))"/>
@@ -9,4 +9,4 @@
 		<after method="foo" pointcut-ref="testPointcut"/>
 	</aspect>

-</config>
+</config>
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
-    xmlns:aop="http://www.springframework.org/schema/aop"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
-        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
+		xmlns:aop="http://www.springframework.org/schema/aop"
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
+			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

-  <bean id="scoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="false">
-    <aop:scoped-proxy/>
-  </bean>
+	<bean id="scoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" scope="prototype" autowire-candidate="false">
+		<aop:scoped-proxy/>
+	</bean>

-  <bean id="unscoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="true"/>
+	<bean id="unscoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="true"/>

-  <bean id="autowired" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire="byType"/>
+	<bean id="autowired" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire="byType"/>

 </beans>
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
-    xmlns:aop="http://www.springframework.org/schema/aop"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
-        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
+       xmlns:aop="http://www.springframework.org/schema/aop"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
+			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

-  <bean id="scoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="true">
-    <aop:scoped-proxy/>
-  </bean>
+	<bean id="scoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" scope="singleton" autowire-candidate="true">
+		<aop:scoped-proxy/>
+	</bean>

-  <bean id="unscoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="false"/>
+	<bean id="unscoped" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire-candidate="false"/>

-  <bean id="autowired" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire="byType"/>
+	<bean id="autowired" class="org.springframework.aop.scope.ScopedProxyAutowireTests$TestBean" autowire="byType"/>

 </beans>
@@ -1,5 +1,4 @@
-// redefine the compileJava and compileTestJava tasks in order to
-// compile sources with ajc instead of javac
+// Redefine the compileJava and compileTestJava tasks in order to compile sources with ajc instead of javac

 configurations {
 	rt
@@ -8,22 +7,14 @@ configurations {
 	ajInpath
 }

-// exclude spring-aspects as a module within IDEA until IDEA-64446 is resolved
-tasks.getByName("idea").onlyIf { false }
-tasks.getByName("ideaModule").onlyIf { false }
-
 compileJava  {
 	actions = []
 	dependsOn configurations.ajc.getTaskDependencyFromProjectDependency(true, "compileJava")

 	def outputDir = project.sourceSets.main.output.classesDir
-
 	inputs.files(project.sourceSets.main.allSource + project.sourceSets.main.compileClasspath)
 	outputs.dir outputDir

-	ext.sourceCompatibility = project(":spring-core").compileJava.sourceCompatibility
-	ext.targetCompatibility = project(":spring-core").compileJava.targetCompatibility
-
 	doLast{
 		// Assemble runtime classpath from folders and JARs that actually exist
 		def runtimeClasspath = project.files(sourceSets.main.runtimeClasspath.files.findAll({ it.exists() }))
@@ -53,13 +44,9 @@ compileTestJava  {
 	dependsOn jar

 	def outputDir = project.sourceSets.test.output.classesDir
-
 	inputs.files(project.sourceSets.test.allSource + project.sourceSets.test.compileClasspath)
 	outputs.dir outputDir

-	ext.sourceCompatibility = project(":spring-core").compileTestJava.sourceCompatibility
-	ext.targetCompatibility = project(":spring-core").compileTestJava.targetCompatibility
-
 	doLast{
 		// Assemble runtime classpath from folders and JARs that actually exist
 		def runtimeClasspath = project.files(sourceSets.test.runtimeClasspath.files.findAll({ it.exists() }))
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.context.annotation.Role;
 * @see org.springframework.cache.annotation.CachingConfigurationSelector
 */
@Configuration
+@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
 public class AspectJCachingConfiguration extends AbstractCachingConfiguration {

 	@Bean(name = CacheManagementConfigUtils.CACHE_ASPECT_BEAN_NAME)
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.context.annotation.Role;
 * @see org.springframework.cache.annotation.CachingConfigurationSelector
 */
@Configuration
+@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
 public class AspectJJCacheConfiguration extends AbstractJCacheConfiguration {

 	@Bean(name = CacheManagementConfigUtils.JCACHE_ASPECT_BEAN_NAME)
@@ -36,7 +36,9 @@ import org.springframework.util.ObjectUtils;
 * @author Rod Johnson
 * @author Ramnivas Laddad
 * @author Sam Brannen
+ * @deprecated as of Spring 4.3, in favor of a custom aspect for such purposes
 */
+@Deprecated
 public abstract aspect AbstractMethodMockingControl percflow(mockStaticsTestMethod()) {

 	private final Expectations expectations = new Expectations();
@@ -59,7 +59,9 @@ import org.aspectj.lang.annotation.SuppressAjWarnings;
 * @author Ramnivas Laddad
 * @author Sam Brannen
 * @see MockStaticEntityMethods
+ * @deprecated as of Spring 4.3, in favor of a custom aspect for such purposes
 */
+@Deprecated
@RequiredTypes("javax.persistence.Entity")
 public aspect AnnotationDrivenStaticEntityMockingControl extends AbstractMethodMockingControl {

@@ -29,7 +29,9 @@ import java.lang.annotation.Target;
 *
 * @author Rod Johnson
 * @author Sam Brannen
+ * @deprecated as of Spring 4.3, in favor of a custom aspect for such purposes
 */
+@Deprecated
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
 public @interface MockStaticEntityMethods {
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -18,55 +18,45 @@ package org.springframework.transaction.aspectj;

 import java.lang.reflect.Method;

+import org.junit.Before;
+import org.junit.Test;
+
 import org.springframework.tests.transaction.CallCountingTransactionManager;
 import org.springframework.transaction.annotation.AnnotationTransactionAttributeSource;
-import org.springframework.transaction.interceptor.TransactionAspectSupport;
 import org.springframework.transaction.interceptor.TransactionAttribute;

+import static org.junit.Assert.*;
+
 /**
 * @author Rod Johnson
 * @author Ramnivas Laddad
 * @author Juergen Hoeller
 * @author Sam Brannen
 */
-@SuppressWarnings("deprecation")
-public class TransactionAspectTests extends org.springframework.test.AbstractDependencyInjectionSpringContextTests {
+public class TransactionAspectTests {

-	private CallCountingTransactionManager txManager;
+	private final CallCountingTransactionManager txManager = new CallCountingTransactionManager();

-	private TransactionalAnnotationOnlyOnClassWithNoInterface annotationOnlyOnClassWithNoInterface;
+	private final TransactionalAnnotationOnlyOnClassWithNoInterface annotationOnlyOnClassWithNoInterface =
+			new TransactionalAnnotationOnlyOnClassWithNoInterface();

-	private ClassWithProtectedAnnotatedMember beanWithAnnotatedProtectedMethod;
+	private final ClassWithProtectedAnnotatedMember beanWithAnnotatedProtectedMethod =
+			new ClassWithProtectedAnnotatedMember();

-	private ClassWithPrivateAnnotatedMember beanWithAnnotatedPrivateMethod;
+	private final ClassWithPrivateAnnotatedMember beanWithAnnotatedPrivateMethod =
+			new ClassWithPrivateAnnotatedMember();

-	private MethodAnnotationOnClassWithNoInterface methodAnnotationOnly = new MethodAnnotationOnClassWithNoInterface();
+	private final MethodAnnotationOnClassWithNoInterface methodAnnotationOnly =
+			new MethodAnnotationOnClassWithNoInterface();


-	public void setAnnotationOnlyOnClassWithNoInterface(
-			TransactionalAnnotationOnlyOnClassWithNoInterface annotationOnlyOnClassWithNoInterface) {
-		this.annotationOnlyOnClassWithNoInterface = annotationOnlyOnClassWithNoInterface;
-	}
-
-	public void setClassWithAnnotatedProtectedMethod(ClassWithProtectedAnnotatedMember aBean) {
-		this.beanWithAnnotatedProtectedMethod = aBean;
-	}
-
-	public void setClassWithAnnotatedPrivateMethod(ClassWithPrivateAnnotatedMember aBean) {
-		this.beanWithAnnotatedPrivateMethod = aBean;
-	}
-
-	public void setTransactionAspect(TransactionAspectSupport transactionAspect) {
-		this.txManager = (CallCountingTransactionManager) transactionAspect.getTransactionManager();
-	}
-
-
-	@Override
-	protected String[] getConfigPaths() {
-		return new String[] { "TransactionAspectTests-context.xml" };
+	@Before
+	public void initContext() {
+		AnnotationTransactionAspect.aspectOf().setTransactionManager(txManager);
 	}


+	@Test
 	public void testCommitOnAnnotatedClass() throws Throwable {
 		txManager.clear();
 		assertEquals(0, txManager.begun);
@@ -74,6 +64,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(1, txManager.commits);
 	}

+	@Test
 	public void testCommitOnAnnotatedProtectedMethod() throws Throwable {
 		txManager.clear();
 		assertEquals(0, txManager.begun);
@@ -81,6 +72,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(1, txManager.commits);
 	}

+	@Test
 	public void testCommitOnAnnotatedPrivateMethod() throws Throwable {
 		txManager.clear();
 		assertEquals(0, txManager.begun);
@@ -88,6 +80,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(1, txManager.commits);
 	}

+	@Test
 	public void testNoCommitOnNonAnnotatedNonPublicMethodInTransactionalType() throws Throwable {
 		txManager.clear();
 		assertEquals(0,txManager.begun);
@@ -95,6 +88,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(0,txManager.begun);
 	}

+	@Test
 	public void testCommitOnAnnotatedMethod() throws Throwable {
 		txManager.clear();
 		assertEquals(0, txManager.begun);
@@ -102,6 +96,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(1, txManager.commits);
 	}

+	@Test
 	public void testNotTransactional() throws Throwable {
 		txManager.clear();
 		assertEquals(0, txManager.begun);
@@ -109,6 +104,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		assertEquals(0, txManager.begun);
 	}

+	@Test
 	public void testDefaultCommitOnAnnotatedClass() throws Throwable {
 		final Exception ex = new Exception();
 		try {
@@ -125,6 +121,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		}
 	}

+	@Test
 	public void testDefaultRollbackOnAnnotatedClass() throws Throwable {
 		final RuntimeException ex = new RuntimeException();
 		try {
@@ -141,10 +138,11 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		}
 	}

+	@Test
 	public void testDefaultCommitOnSubclassOfAnnotatedClass() throws Throwable {
 		final Exception ex = new Exception();
 		try {
-				testRollback(new TransactionOperationCallback() {
+			testRollback(new TransactionOperationCallback() {
 				@Override
 				public Object performTransactionalOperation() throws Throwable {
 					return new SubclassOfClassWithTransactionalAnnotation().echo(ex);
@@ -157,6 +155,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		}
 	}

+	@Test
 	public void testDefaultCommitOnSubclassOfClassWithTransactionalMethodAnnotated() throws Throwable {
 		final Exception ex = new Exception();
 		try {
@@ -173,6 +172,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		}
 	}

+	@Test
 	public void testDefaultCommitOnImplementationOfAnnotatedInterface() throws Throwable {
 		final Exception ex = new Exception();
 		testNotTransactional(new TransactionOperationCallback() {
@@ -185,16 +185,19 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep

 	/**
 	 * Note: resolution does not occur. Thus we can't make a class transactional if
-	 * it implements a transactionally annotated interface. This behaviour could only
+	 * it implements a transactionally annotated interface. This behavior could only
 	 * be changed in AbstractFallbackTransactionAttributeSource in Spring proper.
+	 * See SPR-14322.
 	 */
+	@Test
 	public void testDoesNotResolveTxAnnotationOnMethodFromClassImplementingAnnotatedInterface() throws Exception {
 		AnnotationTransactionAttributeSource atas = new AnnotationTransactionAttributeSource();
-		Method m = ImplementsAnnotatedInterface.class.getMethod("echo", Throwable.class);
-		TransactionAttribute ta = atas.getTransactionAttribute(m, ImplementsAnnotatedInterface.class);
+		Method method = ImplementsAnnotatedInterface.class.getMethod("echo", Throwable.class);
+		TransactionAttribute ta = atas.getTransactionAttribute(method, ImplementsAnnotatedInterface.class);
 		assertNull(ta);
 	}

+	@Test
 	public void testDefaultRollbackOnImplementationOfAnnotatedInterface() throws Throwable {
 		final Exception rollbackProvokingException = new RuntimeException();
 		testNotTransactional(new TransactionOperationCallback() {
@@ -237,15 +240,19 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep


 	private interface TransactionOperationCallback {
+
 		Object performTransactionalOperation() throws Throwable;
 	}

+
 	public static class SubclassOfClassWithTransactionalAnnotation extends TransactionalAnnotationOnlyOnClassWithNoInterface {
 	}

+
 	public static class SubclassOfClassWithTransactionalMethodAnnotation extends MethodAnnotationOnClassWithNoInterface {
 	}

+
 	public static class ImplementsAnnotatedInterface implements ITransactional {

 		@Override
@@ -257,6 +264,7 @@ public class TransactionAspectTests extends org.springframework.test.AbstractDep
 		}
 	}

+
 	public static class NotTransactional {

 		public void noop() {
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -237,6 +237,7 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 		}

 		Closure beans = new Closure(this) {
+			@Override
 			public Object call(Object[] args) {
 				invokeBeanDefiningClosure((Closure) args[0]);
 				return null;
@@ -303,7 +304,7 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 			Collection constructorArgs = null;
 			if (!ObjectUtils.isEmpty(args)) {
 				int index = args.length;
-				Object lastArg = args[index-1];
+				Object lastArg = args[index - 1];
 				if (lastArg instanceof Closure) {
 					callable = (Closure) lastArg;
 					index--;
@@ -380,10 +381,8 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 				refName = args[0].toString();
 			}
 			boolean parentRef = false;
-			if (args.length > 1) {
-				if (args[1] instanceof Boolean) {
-					parentRef = (Boolean) args[1];
-				}
+			if (args.length > 1 && args[1] instanceof Boolean) {
+				parentRef = (Boolean) args[1];
 			}
 			return new RuntimeBeanReference(refName, parentRef);
 		}
@@ -410,12 +409,7 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 	}

 	private boolean addDeferredProperty(String property, Object newValue) {
-		if (newValue instanceof List) {
-			this.deferredProperties.put(this.currentBeanDefinition.getBeanName() + '.' + property,
-					new DeferredProperty(this.currentBeanDefinition, property, newValue));
-			return true;
-		}
-		else if (newValue instanceof Map) {
+		if (newValue instanceof List || newValue instanceof Map) {
 			this.deferredProperties.put(this.currentBeanDefinition.getBeanName() + '.' + property,
 					new DeferredProperty(this.currentBeanDefinition, property, newValue));
 			return true;
@@ -456,14 +450,14 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 	 * @return the bean definition wrapper
 	 */
 	private GroovyBeanDefinitionWrapper invokeBeanDefiningMethod(String beanName, Object[] args) {
-		boolean hasClosureArgument = args[args.length - 1] instanceof Closure;
+		boolean hasClosureArgument = (args[args.length - 1] instanceof Closure);
 		if (args[0] instanceof Class) {
-			Class<?> beanClass = (args[0] instanceof Class ? (Class) args[0] : args[0].getClass());
+			Class<?> beanClass = (Class<?>) args[0];
 			if (args.length >= 1) {
 				if (hasClosureArgument) {
-					if (args.length-1 != 1) {
+					if (args.length - 1 != 1) {
 						this.currentBeanDefinition = new GroovyBeanDefinitionWrapper(
-								beanName, beanClass, resolveConstructorArguments(args,1,args.length-1));
+								beanName, beanClass, resolveConstructorArguments(args, 1, args.length - 1));
 					}
 					else {
 						this.currentBeanDefinition = new GroovyBeanDefinitionWrapper(beanName, beanClass);
@@ -471,7 +465,7 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 				}
 				else  {
 					this.currentBeanDefinition = new GroovyBeanDefinitionWrapper(
-							beanName, beanClass, resolveConstructorArguments(args,1,args.length));
+							beanName, beanClass, resolveConstructorArguments(args, 1, args.length));
 				}

 			}
@@ -483,7 +477,7 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 		else if (args[0] instanceof Map) {
 			// named constructor arguments
 			if (args.length > 1 && args[1] instanceof Class) {
-				List constructorArgs = resolveConstructorArguments(args, 2, hasClosureArgument ? args.length-1 :  args.length);
+				List constructorArgs = resolveConstructorArguments(args, 2, hasClosureArgument ? args.length - 1 : args.length);
 				this.currentBeanDefinition = new GroovyBeanDefinitionWrapper(beanName, (Class)args[1], constructorArgs);
 				Map namedArgs = (Map)args[0];
 				for (Object o : namedArgs.keySet()) {
@@ -519,18 +513,18 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 			this.currentBeanDefinition.getBeanDefinition().setAbstract(true);
 		}
 		else {
-			List constructorArgs = resolveConstructorArguments(args, 0, hasClosureArgument ? args.length-1 : args.length);
+			List constructorArgs = resolveConstructorArguments(args, 0, hasClosureArgument ? args.length - 1 : args.length);
 			currentBeanDefinition = new GroovyBeanDefinitionWrapper(beanName, null, constructorArgs);
 		}

 		if (hasClosureArgument) {
-			Closure callable = (Closure)args[args.length-1];
+			Closure callable = (Closure) args[args.length - 1];
 			callable.setDelegate(this);
 			callable.setResolveStrategy(Closure.DELEGATE_FIRST);
-			callable.call(new Object[]{currentBeanDefinition});
+			callable.call(this.currentBeanDefinition);
 		}

-		GroovyBeanDefinitionWrapper beanDefinition = currentBeanDefinition;
+		GroovyBeanDefinitionWrapper beanDefinition = this.currentBeanDefinition;
 		this.currentBeanDefinition = null;
 		beanDefinition.getBeanDefinition().setAttribute(GroovyBeanDefinitionWrapper.class.getName(), beanDefinition);
 		getRegistry().registerBeanDefinition(beanName, beanDefinition.getBeanDefinition());
@@ -818,14 +812,17 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 				return retVal;
 			}

+			@Override
 			public Object invokeMethod(String name, Object args) {
 				return InvokerHelper.invokeMethod(this.propertyValue, name, args);
 			}

+			@Override
 			public Object getProperty(String name) {
 				return InvokerHelper.getProperty(this.propertyValue, name);
 			}

+			@Override
 			public void setProperty(String name, Object value) {
 				InvokerHelper.setProperty(this.propertyValue, name, value);
 			}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -162,6 +162,7 @@ class GroovyBeanDefinitionWrapper extends GroovyObjectSupport {
 	}


+	@Override
 	public Object getProperty(String property) {
 		if (this.definitionWrapper.isReadableProperty(property)) {
 			return this.definitionWrapper.getPropertyValue(property);
@@ -172,6 +173,7 @@ class GroovyBeanDefinitionWrapper extends GroovyObjectSupport {
 		return super.getProperty(property);
 	}

+	@Override
 	public void setProperty(String property, Object newValue) {
 		if (PARENT.equals(property)) {
 			setParent(newValue);
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -55,10 +55,10 @@ import org.springframework.util.StringUtils;
 * as String arrays are converted in such a format if the array itself is not
 * assignable.
 *
- * @author Rod Johnson
 * @author Juergen Hoeller
- * @author Rob Harrop
 * @author Stephane Nicoll
+ * @author Rod Johnson
+ * @author Rob Harrop
 * @since 4.2
 * @see #registerCustomEditor
 * @see #setPropertyValues
@@ -94,11 +94,9 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA

 	private String nestedPath = "";

-	private Object rootObject;
+	Object rootObject;

-	/**
-	 * Map with cached nested Accessors: nested path -> Accessor instance.
-	 */
+	/** Map with cached nested Accessors: nested path -> Accessor instance */
 	private Map<String, AbstractNestablePropertyAccessor> nestedPropertyAccessors;


@@ -284,198 +282,212 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 		}
 	}

-	@SuppressWarnings("unchecked")
 	protected void setPropertyValue(PropertyTokenHolder tokens, PropertyValue pv) throws BeansException {
-		String propertyName = tokens.canonicalName;
-		String actualName = tokens.actualName;
-
 		if (tokens.keys != null) {
-			// Apply indexes and map keys: fetch value for all keys but the last one.
-			PropertyTokenHolder getterTokens = new PropertyTokenHolder();
-			getterTokens.canonicalName = tokens.canonicalName;
-			getterTokens.actualName = tokens.actualName;
-			getterTokens.keys = new String[tokens.keys.length - 1];
-			System.arraycopy(tokens.keys, 0, getterTokens.keys, 0, tokens.keys.length - 1);
-			Object propValue;
+			processKeyedProperty(tokens, pv);
+		}
+		else {
+			processLocalProperty(tokens, pv);
+		}
+	}
+
+	@SuppressWarnings("unchecked")
+	private void processKeyedProperty(PropertyTokenHolder tokens, PropertyValue pv) {
+		Object propValue = getPropertyHoldingValue(tokens);
+		String lastKey = tokens.keys[tokens.keys.length - 1];
+
+		if (propValue.getClass().isArray()) {
+			PropertyHandler ph = getLocalPropertyHandler(tokens.actualName);
+			Class<?> requiredType = propValue.getClass().getComponentType();
+			int arrayIndex = Integer.parseInt(lastKey);
+			Object oldValue = null;
 			try {
-				propValue = getPropertyValue(getterTokens);
-			}
-			catch (NotReadablePropertyException ex) {
-				throw new NotWritablePropertyException(getRootClass(), this.nestedPath + propertyName,
-						"Cannot access indexed value in property referenced " +
-						"in indexed property path '" + propertyName + "'", ex);
-			}
-			// Set value for last key.
-			String key = tokens.keys[tokens.keys.length - 1];
-			if (propValue == null) {
-				// null map value case
-				if (isAutoGrowNestedPaths()) {
-					// TODO: cleanup, this is pretty hacky
-					int lastKeyIndex = tokens.canonicalName.lastIndexOf('[');
-					getterTokens.canonicalName = tokens.canonicalName.substring(0, lastKeyIndex);
-					propValue = setDefaultValue(getterTokens);
+				if (isExtractOldValueForEditor() && arrayIndex < Array.getLength(propValue)) {
+					oldValue = Array.get(propValue, arrayIndex);
 				}
-				else {
-					throw new NullValueInNestedPathException(getRootClass(), this.nestedPath + propertyName,
-							"Cannot access indexed value in property referenced " +
-							"in indexed property path '" + propertyName + "': returned null");
-				}
-			}
-			if (propValue.getClass().isArray()) {
-				PropertyHandler ph = getLocalPropertyHandler(actualName);
-				Class<?> requiredType = propValue.getClass().getComponentType();
-				int arrayIndex = Integer.parseInt(key);
-				Object oldValue = null;
-				try {
-					if (isExtractOldValueForEditor() && arrayIndex < Array.getLength(propValue)) {
-						oldValue = Array.get(propValue, arrayIndex);
-					}
-					Object convertedValue = convertIfNecessary(propertyName, oldValue, pv.getValue(),
-							requiredType, ph.nested(tokens.keys.length));
-					int length = Array.getLength(propValue);
-					if (arrayIndex >= length && arrayIndex < this.autoGrowCollectionLimit) {
-						Class<?> componentType = propValue.getClass().getComponentType();
-						Object newArray = Array.newInstance(componentType, arrayIndex + 1);
-						System.arraycopy(propValue, 0, newArray, 0, length);
-						setPropertyValue(actualName, newArray);
-						propValue = getPropertyValue(actualName);
-					}
-					Array.set(propValue, arrayIndex, convertedValue);
-				}
-				catch (IndexOutOfBoundsException ex) {
-					throw new InvalidPropertyException(getRootClass(), this.nestedPath + propertyName,
-							"Invalid array index in property path '" + propertyName + "'", ex);
-				}
-			}
-			else if (propValue instanceof List) {
-				PropertyHandler ph = getPropertyHandler(actualName);
-				Class<?> requiredType = ph.getCollectionType(tokens.keys.length);
-				List<Object> list = (List<Object>) propValue;
-				int index = Integer.parseInt(key);
-				Object oldValue = null;
-				if (isExtractOldValueForEditor() && index < list.size()) {
-					oldValue = list.get(index);
-				}
-				Object convertedValue = convertIfNecessary(propertyName, oldValue, pv.getValue(),
+				Object convertedValue = convertIfNecessary(tokens.canonicalName, oldValue, pv.getValue(),
 						requiredType, ph.nested(tokens.keys.length));
-				int size = list.size();
-				if (index >= size && index < this.autoGrowCollectionLimit) {
-					for (int i = size; i < index; i++) {
-						try {
-							list.add(null);
-						}
-						catch (NullPointerException ex) {
-							throw new InvalidPropertyException(getRootClass(), this.nestedPath + propertyName,
-									"Cannot set element with index " + index + " in List of size " +
-									size + ", accessed using property path '" + propertyName +
-									"': List does not support filling up gaps with null elements");
-						}
-					}
-					list.add(convertedValue);
-				}
-				else {
-					try {
-						list.set(index, convertedValue);
-					}
-					catch (IndexOutOfBoundsException ex) {
-						throw new InvalidPropertyException(getRootClass(), this.nestedPath + propertyName,
-								"Invalid list index in property path '" + propertyName + "'", ex);
-					}
+				int length = Array.getLength(propValue);
+				if (arrayIndex >= length && arrayIndex < this.autoGrowCollectionLimit) {
+					Class<?> componentType = propValue.getClass().getComponentType();
+					Object newArray = Array.newInstance(componentType, arrayIndex + 1);
+					System.arraycopy(propValue, 0, newArray, 0, length);
+					setPropertyValue(tokens.actualName, newArray);
+					propValue = getPropertyValue(tokens.actualName);
 				}
+				Array.set(propValue, arrayIndex, convertedValue);
 			}
-			else if (propValue instanceof Map) {
-				PropertyHandler ph = getLocalPropertyHandler(actualName);
-				Class<?> mapKeyType = ph.getMapKeyType(tokens.keys.length);
-				Class<?> mapValueType = ph.getMapValueType(tokens.keys.length);
-				Map<Object, Object> map = (Map<Object, Object>) propValue;
-				// IMPORTANT: Do not pass full property name in here - property editors
-				// must not kick in for map keys but rather only for map values.
-				TypeDescriptor typeDescriptor = TypeDescriptor.valueOf(mapKeyType);
-				Object convertedMapKey = convertIfNecessary(null, null, key, mapKeyType, typeDescriptor);
-				Object oldValue = null;
-				if (isExtractOldValueForEditor()) {
-					oldValue = map.get(convertedMapKey);
-				}
-				// Pass full property name and old value in here, since we want full
-				// conversion ability for map values.
-				Object convertedMapValue = convertIfNecessary(propertyName, oldValue, pv.getValue(),
-						mapValueType, ph.nested(tokens.keys.length));
-				map.put(convertedMapKey, convertedMapValue);
-			}
-			else {
-				throw new InvalidPropertyException(getRootClass(), this.nestedPath + propertyName,
-						"Property referenced in indexed property path '" + propertyName +
-						"' is neither an array nor a List nor a Map; returned value was [" + propValue + "]");
+			catch (IndexOutOfBoundsException ex) {
+				throw new InvalidPropertyException(getRootClass(), this.nestedPath + tokens.canonicalName,
+						"Invalid array index in property path '" + tokens.canonicalName + "'", ex);
 			}
 		}

-		else {
-			PropertyHandler ph = getLocalPropertyHandler(actualName);
-			if (ph == null || !ph.isWritable()) {
-				if (pv.isOptional()) {
-					if (logger.isDebugEnabled()) {
-						logger.debug("Ignoring optional value for property '" + actualName +
-								"' - property not found on bean class [" + getRootClass().getName() + "]");
+		else if (propValue instanceof List) {
+			PropertyHandler ph = getPropertyHandler(tokens.actualName);
+			Class<?> requiredType = ph.getCollectionType(tokens.keys.length);
+			List<Object> list = (List<Object>) propValue;
+			int index = Integer.parseInt(lastKey);
+			Object oldValue = null;
+			if (isExtractOldValueForEditor() && index < list.size()) {
+				oldValue = list.get(index);
+			}
+			Object convertedValue = convertIfNecessary(tokens.canonicalName, oldValue, pv.getValue(),
+					requiredType, ph.nested(tokens.keys.length));
+			int size = list.size();
+			if (index >= size && index < this.autoGrowCollectionLimit) {
+				for (int i = size; i < index; i++) {
+					try {
+						list.add(null);
+					}
+					catch (NullPointerException ex) {
+						throw new InvalidPropertyException(getRootClass(), this.nestedPath + tokens.canonicalName,
+								"Cannot set element with index " + index + " in List of size " +
+								size + ", accessed using property path '" + tokens.canonicalName +
+								"': List does not support filling up gaps with null elements");
 					}
-					return;
 				}
-				else {
-					throw createNotWritablePropertyException(propertyName);
+				list.add(convertedValue);
+			}
+			else {
+				try {
+					list.set(index, convertedValue);
+				}
+				catch (IndexOutOfBoundsException ex) {
+					throw new InvalidPropertyException(getRootClass(), this.nestedPath + tokens.canonicalName,
+							"Invalid list index in property path '" + tokens.canonicalName + "'", ex);
 				}
 			}
+		}
+
+		else if (propValue instanceof Map) {
+			PropertyHandler ph = getLocalPropertyHandler(tokens.actualName);
+			Class<?> mapKeyType = ph.getMapKeyType(tokens.keys.length);
+			Class<?> mapValueType = ph.getMapValueType(tokens.keys.length);
+			Map<Object, Object> map = (Map<Object, Object>) propValue;
+			// IMPORTANT: Do not pass full property name in here - property editors
+			// must not kick in for map keys but rather only for map values.
+			TypeDescriptor typeDescriptor = TypeDescriptor.valueOf(mapKeyType);
+			Object convertedMapKey = convertIfNecessary(null, null, lastKey, mapKeyType, typeDescriptor);
 			Object oldValue = null;
-			try {
-				Object originalValue = pv.getValue();
-				Object valueToApply = originalValue;
-				if (!Boolean.FALSE.equals(pv.conversionNecessary)) {
-					if (pv.isConverted()) {
-						valueToApply = pv.getConvertedValue();
-					}
-					else {
-						if (isExtractOldValueForEditor() && ph.isReadable()) {
-							try {
-								oldValue = ph.getValue();
+			if (isExtractOldValueForEditor()) {
+				oldValue = map.get(convertedMapKey);
+			}
+			// Pass full property name and old value in here, since we want full
+			// conversion ability for map values.
+			Object convertedMapValue = convertIfNecessary(tokens.canonicalName, oldValue, pv.getValue(),
+					mapValueType, ph.nested(tokens.keys.length));
+			map.put(convertedMapKey, convertedMapValue);
+		}
+
+		else {
+			throw new InvalidPropertyException(getRootClass(), this.nestedPath + tokens.canonicalName,
+					"Property referenced in indexed property path '" + tokens.canonicalName +
+					"' is neither an array nor a List nor a Map; returned value was [" + propValue + "]");
+		}
+	}
+
+	private Object getPropertyHoldingValue(PropertyTokenHolder tokens) {
+		// Apply indexes and map keys: fetch value for all keys but the last one.
+		PropertyTokenHolder getterTokens = new PropertyTokenHolder();
+		getterTokens.canonicalName = tokens.canonicalName;
+		getterTokens.actualName = tokens.actualName;
+		getterTokens.keys = new String[tokens.keys.length - 1];
+		System.arraycopy(tokens.keys, 0, getterTokens.keys, 0, tokens.keys.length - 1);
+
+		Object propValue;
+		try {
+			propValue = getPropertyValue(getterTokens);
+		}
+		catch (NotReadablePropertyException ex) {
+			throw new NotWritablePropertyException(getRootClass(), this.nestedPath + tokens.canonicalName,
+					"Cannot access indexed value in property referenced " +
+					"in indexed property path '" + tokens.canonicalName + "'", ex);
+		}
+
+		if (propValue == null) {
+			// null map value case
+			if (isAutoGrowNestedPaths()) {
+				int lastKeyIndex = tokens.canonicalName.lastIndexOf('[');
+				getterTokens.canonicalName = tokens.canonicalName.substring(0, lastKeyIndex);
+				propValue = setDefaultValue(getterTokens);
+			}
+			else {
+				throw new NullValueInNestedPathException(getRootClass(), this.nestedPath + tokens.canonicalName,
+						"Cannot access indexed value in property referenced " +
+						"in indexed property path '" + tokens.canonicalName + "': returned null");
+			}
+		}
+		return propValue;
+	}
+
+	private void processLocalProperty(PropertyTokenHolder tokens, PropertyValue pv) {
+		PropertyHandler ph = getLocalPropertyHandler(tokens.actualName);
+		if (ph == null || !ph.isWritable()) {
+			if (pv.isOptional()) {
+				if (logger.isDebugEnabled()) {
+					logger.debug("Ignoring optional value for property '" + tokens.actualName +
+							"' - property not found on bean class [" + getRootClass().getName() + "]");
+				}
+				return;
+			}
+			else {
+				throw createNotWritablePropertyException(tokens.canonicalName);
+			}
+		}
+
+		Object oldValue = null;
+		try {
+			Object originalValue = pv.getValue();
+			Object valueToApply = originalValue;
+			if (!Boolean.FALSE.equals(pv.conversionNecessary)) {
+				if (pv.isConverted()) {
+					valueToApply = pv.getConvertedValue();
+				}
+				else {
+					if (isExtractOldValueForEditor() && ph.isReadable()) {
+						try {
+							oldValue = ph.getValue();
+						}
+						catch (Exception ex) {
+							if (ex instanceof PrivilegedActionException) {
+								ex = ((PrivilegedActionException) ex).getException();
 							}
-							catch (Exception ex) {
-								if (ex instanceof PrivilegedActionException) {
-									ex = ((PrivilegedActionException) ex).getException();
-								}
-								if (logger.isDebugEnabled()) {
-									logger.debug("Could not read previous value of property '" +
-											this.nestedPath + propertyName + "'", ex);
-								}
+							if (logger.isDebugEnabled()) {
+								logger.debug("Could not read previous value of property '" +
+										this.nestedPath + tokens.canonicalName + "'", ex);
 							}
 						}
-						valueToApply = convertForProperty(
-								propertyName, oldValue, originalValue, ph.toTypeDescriptor());
 					}
-					pv.getOriginalPropertyValue().conversionNecessary = (valueToApply != originalValue);
+					valueToApply = convertForProperty(
+							tokens.canonicalName, oldValue, originalValue, ph.toTypeDescriptor());
 				}
-				ph.setValue(this.wrappedObject, valueToApply);
+				pv.getOriginalPropertyValue().conversionNecessary = (valueToApply != originalValue);
 			}
-			catch (TypeMismatchException ex) {
-				throw ex;
+			ph.setValue(this.wrappedObject, valueToApply);
+		}
+		catch (TypeMismatchException ex) {
+			throw ex;
+		}
+		catch (InvocationTargetException ex) {
+			PropertyChangeEvent propertyChangeEvent = new PropertyChangeEvent(
+					this.rootObject, this.nestedPath + tokens.canonicalName, oldValue, pv.getValue());
+			if (ex.getTargetException() instanceof ClassCastException) {
+				throw new TypeMismatchException(propertyChangeEvent, ph.getPropertyType(), ex.getTargetException());
 			}
-			catch (InvocationTargetException ex) {
-				PropertyChangeEvent propertyChangeEvent =
-						new PropertyChangeEvent(this.rootObject, this.nestedPath + propertyName, oldValue, pv.getValue());
-				if (ex.getTargetException() instanceof ClassCastException) {
-					throw new TypeMismatchException(propertyChangeEvent, ph.getPropertyType(), ex.getTargetException());
-				}
-				else {
-					Throwable cause = ex.getTargetException();
-					if (cause instanceof UndeclaredThrowableException) {
-						// May happen e.g. with Groovy-generated methods
-						cause = cause.getCause();
-					}
-					throw new MethodInvocationException(propertyChangeEvent, cause);
+			else {
+				Throwable cause = ex.getTargetException();
+				if (cause instanceof UndeclaredThrowableException) {
+					// May happen e.g. with Groovy-generated methods
+					cause = cause.getCause();
 				}
+				throw new MethodInvocationException(propertyChangeEvent, cause);
 			}
-			catch (Exception ex) {
-				PropertyChangeEvent pce =
-						new PropertyChangeEvent(this.rootObject, this.nestedPath + propertyName, oldValue, pv.getValue());
-				throw new MethodInvocationException(pce, ex);
-			}
+		}
+		catch (Exception ex) {
+			PropertyChangeEvent pce = new PropertyChangeEvent(
+					this.rootObject, this.nestedPath + tokens.canonicalName, oldValue, pv.getValue());
+			throw new MethodInvocationException(pce, ex);
 		}
 	}

@@ -590,7 +602,7 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 					new PropertyChangeEvent(this.rootObject, this.nestedPath + propertyName, oldValue, newValue);
 			throw new ConversionNotSupportedException(pce, requiredType, ex);
 		}
-		catch (Throwable ex) {
+		catch (IllegalArgumentException ex) {
 			PropertyChangeEvent pce =
 					new PropertyChangeEvent(this.rootObject, this.nestedPath + propertyName, oldValue, newValue);
 			throw new TypeMismatchException(pce, requiredType, ex);
@@ -914,11 +926,9 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 				return BeanUtils.instantiate(type);
 			}
 		}
-		catch (Exception ex) {
-			// TODO: Root cause exception context is lost here; just exception message preserved.
-			// Should we throw another exception type that preserves context instead?
+		catch (Throwable ex) {
 			throw new NullValueInNestedPathException(getRootClass(), this.nestedPath + name,
-					"Could not instantiate property type [" + type.getName() + "] to auto-grow nested property path: " + ex);
+					"Could not instantiate property type [" + type.getName() + "] to auto-grow nested property path", ex);
 		}
 	}

@@ -975,9 +985,6 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 	}


-	/**
-	 * Handle a given property.
-	 */
 	protected abstract static class PropertyHandler {

 		private final Class<?> propertyType;
@@ -148,7 +148,7 @@ public abstract class AbstractPropertyAccessor extends TypeConverterSupport impl
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyAccessException if the property was valid but the
-	 * accessor method failed or a type mismatch occured
+	 * accessor method failed or a type mismatch occurred
 	 */
 	@Override
 	public abstract void setPropertyValue(String propertyName, Object value) throws BeansException;
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -63,11 +63,10 @@ public abstract class BeanUtils {

 	/**
 	 * Convenience method to instantiate a class using its no-arg constructor.
-	 * As this method doesn't try to load classes by name, it should avoid
-	 * class-loading issues.
 	 * @param clazz class to instantiate
 	 * @return the new instance
 	 * @throws BeanInstantiationException if the bean cannot be instantiated
+	 * @see Class#newInstance()
 	 */
 	public static <T> T instantiate(Class<T> clazz) throws BeanInstantiationException {
 		Assert.notNull(clazz, "Class must not be null");
@@ -87,13 +86,12 @@ public abstract class BeanUtils {

 	/**
 	 * Instantiate a class using its no-arg constructor.
-	 * As this method doesn't try to load classes by name, it should avoid
-	 * class-loading issues.
 	 * <p>Note that this method tries to set the constructor accessible
 	 * if given a non-accessible (that is, non-public) constructor.
 	 * @param clazz class to instantiate
 	 * @return the new instance
 	 * @throws BeanInstantiationException if the bean cannot be instantiated
+	 * @see Constructor#newInstance
 	 */
 	public static <T> T instantiateClass(Class<T> clazz) throws BeanInstantiationException {
 		Assert.notNull(clazz, "Class must not be null");
@@ -111,17 +109,15 @@ public abstract class BeanUtils {
 	/**
 	 * Instantiate a class using its no-arg constructor and return the new instance
 	 * as the specified assignable type.
-	 * <p>Useful in cases where
-	 * the type of the class to instantiate (clazz) is not available, but the type
-	 * desired (assignableTo) is known.
-	 * <p>As this method doesn't try to load classes by name, it should avoid
-	 * class-loading issues.
-	 * <p>Note that this method tries to set the constructor accessible
-	 * if given a non-accessible (that is, non-public) constructor.
+	 * <p>Useful in cases where the type of the class to instantiate (clazz) is not
+	 * available, but the type desired (assignableTo) is known.
+	 * <p>Note that this method tries to set the constructor accessible if given a
+	 * non-accessible (that is, non-public) constructor.
 	 * @param clazz class to instantiate
 	 * @param assignableTo type that clazz must be assignableTo
 	 * @return the new instance
 	 * @throws BeanInstantiationException if the bean cannot be instantiated
+	 * @see Constructor#newInstance
 	 */
 	@SuppressWarnings("unchecked")
 	public static <T> T instantiateClass(Class<?> clazz, Class<T> assignableTo) throws BeanInstantiationException {
@@ -131,14 +127,13 @@ public abstract class BeanUtils {

 	/**
 	 * Convenience method to instantiate a class using the given constructor.
-	 * As this method doesn't try to load classes by name, it should avoid
-	 * class-loading issues.
-	 * <p>Note that this method tries to set the constructor accessible
-	 * if given a non-accessible (that is, non-public) constructor.
+	 * <p>Note that this method tries to set the constructor accessible if given a
+	 * non-accessible (that is, non-public) constructor.
 	 * @param ctor the constructor to instantiate
 	 * @param args the constructor arguments to apply
 	 * @return the new instance
 	 * @throws BeanInstantiationException if the bean cannot be instantiated
+	 * @see Constructor#newInstance
 	 */
 	public static <T> T instantiateClass(Constructor<T> ctor, Object... args) throws BeanInstantiationException {
 		Assert.notNull(ctor, "Constructor must not be null");
@@ -316,23 +311,23 @@ public abstract class BeanUtils {
 	public static Method resolveSignature(String signature, Class<?> clazz) {
 		Assert.hasText(signature, "'signature' must not be empty");
 		Assert.notNull(clazz, "Class must not be null");
-		int firstParen = signature.indexOf("(");
-		int lastParen = signature.indexOf(")");
-		if (firstParen > -1 && lastParen == -1) {
+		int startParen = signature.indexOf('(');
+		int endParen = signature.indexOf(')');
+		if (startParen > -1 && endParen == -1) {
 			throw new IllegalArgumentException("Invalid method signature '" + signature +
 					"': expected closing ')' for args list");
 		}
-		else if (lastParen > -1 && firstParen == -1) {
+		else if (startParen == -1 && endParen > -1) {
 			throw new IllegalArgumentException("Invalid method signature '" + signature +
 					"': expected opening '(' for args list");
 		}
-		else if (firstParen == -1 && lastParen == -1) {
+		else if (startParen == -1 && endParen == -1) {
 			return findMethodWithMinimalParameters(clazz, signature);
 		}
 		else {
-			String methodName = signature.substring(0, firstParen);
+			String methodName = signature.substring(0, startParen);
 			String[] parameterTypeNames =
-					StringUtils.commaDelimitedListToStringArray(signature.substring(firstParen + 1, lastParen));
+					StringUtils.commaDelimitedListToStringArray(signature.substring(startParen + 1, endParen));
 			Class<?>[] parameterTypes = new Class<?>[parameterTypeNames.length];
 			for (int i = 0; i < parameterTypeNames.length; i++) {
 				String parameterTypeName = parameterTypeNames[i].trim();
@@ -511,13 +506,14 @@ public abstract class BeanUtils {

 	/**
 	 * Check if the given type represents a "simple" value type:
-	 * a primitive, a String or other CharSequence, a Number, a Date,
+	 * a primitive, an enum, a String or other CharSequence, a Number, a Date,
 	 * a URI, a URL, a Locale or a Class.
 	 * @param clazz the type to check
 	 * @return whether the given type represents a "simple" value type
 	 */
 	public static boolean isSimpleValueType(Class<?> clazz) {
-		return (ClassUtils.isPrimitiveOrWrapper(clazz) || clazz.isEnum() ||
+		return (ClassUtils.isPrimitiveOrWrapper(clazz) ||
+				Enum.class.isAssignableFrom(clazz) ||
 				CharSequence.class.isAssignableFrom(clazz) ||
 				Number.class.isAssignableFrom(clazz) ||
 				Date.class.isAssignableFrom(clazz) ||
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -141,6 +141,7 @@ public class BeanWrapperImpl extends AbstractNestablePropertyAccessor implements
 	 */
 	public void setBeanInstance(Object object) {
 		this.wrappedObject = object;
+		this.rootObject = object;
 		this.typeConverterDelegate = new TypeConverterDelegate(this, this.wrappedObject);
 		setIntrospectionClass(object.getClass());
 	}
@@ -223,10 +224,7 @@ public class BeanWrapperImpl extends AbstractNestablePropertyAccessor implements
 	@Override
 	protected BeanPropertyHandler getLocalPropertyHandler(String propertyName) {
 		PropertyDescriptor pd = getCachedIntrospectionResults().getPropertyDescriptor(propertyName);
-		if (pd != null) {
-			return new BeanPropertyHandler(pd);
-		}
-		return null;
+		return (pd != null ? new BeanPropertyHandler(pd) : null);
 	}

 	@Override
@@ -237,8 +235,7 @@ public class BeanWrapperImpl extends AbstractNestablePropertyAccessor implements
 	@Override
 	protected NotWritablePropertyException createNotWritablePropertyException(String propertyName) {
 		PropertyMatches matches = PropertyMatches.forProperty(propertyName, getRootClass());
-		throw new NotWritablePropertyException(
-				getRootClass(), getNestedPath() + propertyName,
+		throw new NotWritablePropertyException(getRootClass(), getNestedPath() + propertyName,
 				matches.buildErrorMessage(), matches.getPossibleMatches());
 	}

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -339,10 +339,10 @@ public class CachedIntrospectionResults {
 	PropertyDescriptor getPropertyDescriptor(String name) {
 		PropertyDescriptor pd = this.propertyDescriptorCache.get(name);
 		if (pd == null && StringUtils.hasLength(name)) {
-			// Same lenient fallback checking as in PropertyTypeDescriptor...
-			pd = this.propertyDescriptorCache.get(name.substring(0, 1).toLowerCase() + name.substring(1));
+			// Same lenient fallback checking as in Property...
+			pd = this.propertyDescriptorCache.get(StringUtils.uncapitalize(name));
 			if (pd == null) {
-				pd = this.propertyDescriptorCache.get(name.substring(0, 1).toUpperCase() + name.substring(1));
+				pd = this.propertyDescriptorCache.get(StringUtils.capitalize(name));
 			}
 		}
 		return (pd == null || pd instanceof GenericTypeAwarePropertyDescriptor ? pd :
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -76,8 +76,8 @@ public class DirectFieldAccessor extends AbstractNestablePropertyAccessor {
 			Field field = ReflectionUtils.findField(getWrappedClass(), propertyName);
 			if (field != null) {
 				propertyHandler = new FieldPropertyHandler(field);
+				this.fieldMap.put(propertyName, propertyHandler);
 			}
-			this.fieldMap.put(propertyName, propertyHandler);
 		}
 		return propertyHandler;
 	}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -41,7 +41,7 @@ public interface Mergeable {
 	 * @param parent the object to merge with
 	 * @return the result of the merge operation
 	 * @throws IllegalArgumentException if the supplied parent is {@code null}
-	 * @exception IllegalStateException if merging is not enabled for this instance
+	 * @throws IllegalStateException if merging is not enabled for this instance
 	 * (i.e. {@code mergeEnabled} equals {@code false}).
 	 */
 	Object merge(Object parent);
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -262,7 +262,7 @@ public class MutablePropertyValues implements PropertyValues, Serializable {
 	/**
 	 * Get the raw property value, if any.
 	 * @param propertyName the name to search for
-	 * @return the raw property value, or {@code null}
+	 * @return the raw property value, or {@code null} if none found
 	 * @since 4.0
 	 * @see #getPropertyValue(String)
 	 * @see PropertyValue#getValue()
@@ -283,11 +283,7 @@ public class MutablePropertyValues implements PropertyValues, Serializable {
 		for (PropertyValue newPv : this.propertyValueList) {
 			// if there wasn't an old one, add it
 			PropertyValue pvOld = old.getPropertyValue(newPv.getName());
-			if (pvOld == null) {
-				changes.addPropertyValue(newPv);
-			}
-			else if (!pvOld.equals(newPv)) {
-				// it's changed
+			if (pvOld == null || !pvOld.equals(newPv)) {
 				changes.addPropertyValue(newPv);
 			}
 		}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ package org.springframework.beans;
 * spouse property of the target object has a null value.
 *
 * @author Rod Johnson
+ * @author Juergen Hoeller
 */
@SuppressWarnings("serial")
 public class NullValueInNestedPathException extends InvalidPropertyException {
@@ -47,4 +48,16 @@ public class NullValueInNestedPathException extends InvalidPropertyException {
 		super(beanClass, propertyName, msg);
 	}

+	/**
+	 * Create a new NullValueInNestedPathException.
+	 * @param beanClass the offending bean class
+	 * @param propertyName the offending property
+	 * @param msg the detail message
+	 * @param cause the root cause
+	 * @since 4.3.2
+	 */
+	public NullValueInNestedPathException(Class<?> beanClass, String propertyName, String msg, Throwable cause) {
+		super(beanClass, propertyName, msg, cause);
+	}
+
 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -18,8 +18,6 @@ package org.springframework.beans;

 import java.beans.PropertyChangeEvent;

-import org.springframework.core.ErrorCoded;
-
 /**
 * Superclass for exceptions related to a property access,
 * such as type mismatch or invocation target exception.
@@ -27,8 +25,8 @@ import org.springframework.core.ErrorCoded;
 * @author Rod Johnson
 * @author Juergen Hoeller
 */
-@SuppressWarnings("serial")
-public abstract class PropertyAccessException extends BeansException implements ErrorCoded {
+@SuppressWarnings({"serial", "deprecation"})
+public abstract class PropertyAccessException extends BeansException implements org.springframework.core.ErrorCoded {

 	private transient PropertyChangeEvent propertyChangeEvent;

@@ -77,4 +75,10 @@ public abstract class PropertyAccessException extends BeansException implements
 		return (this.propertyChangeEvent != null ? this.propertyChangeEvent.getNewValue() : null);
 	}

+	/**
+	 * Return a corresponding error code for this type of exception.
+	 */
+	@Override
+	public abstract String getErrorCode();
+
 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -81,8 +81,6 @@ public interface PropertyAccessor {
 	 * (may be a nested path and/or an indexed/mapped property)
 	 * @return the property type for the particular property,
 	 * or {@code null} if not determinable
-	 * @throws InvalidPropertyException if there is no such property or
-	 * if the property isn't readable
 	 * @throws PropertyAccessException if the property was valid but the
 	 * accessor method failed
 	 */
@@ -95,8 +93,8 @@ public interface PropertyAccessor {
 	 * (may be a nested path and/or an indexed/mapped property)
 	 * @return the property type for the particular property,
 	 * or {@code null} if not determinable
-	 * @throws InvalidPropertyException if there is no such property or
-	 * if the property isn't readable
+	 * @throws PropertyAccessException if the property was valid but the
+	 * accessor method failed
 	 */
 	TypeDescriptor getPropertyTypeDescriptor(String propertyName) throws BeansException;

@@ -120,7 +118,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyAccessException if the property was valid but the
-	 * accessor method failed or a type mismatch occured
+	 * accessor method failed or a type mismatch occurred
 	 */
 	void setPropertyValue(String propertyName, Object value) throws BeansException;

@@ -130,7 +128,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyAccessException if the property was valid but the
-	 * accessor method failed or a type mismatch occured
+	 * accessor method failed or a type mismatch occurred
 	 */
 	void setPropertyValue(PropertyValue pv) throws BeansException;

@@ -144,7 +142,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyBatchUpdateException if one or more PropertyAccessExceptions
-	 * occured for specific properties during the batch update. This exception bundles
+	 * occurred for specific properties during the batch update. This exception bundles
 	 * all individual PropertyAccessExceptions. All other properties will have been
 	 * successfully updated.
 	 */
@@ -164,7 +162,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyBatchUpdateException if one or more PropertyAccessExceptions
-	 * occured for specific properties during the batch update. This exception bundles
+	 * occurred for specific properties during the batch update. This exception bundles
 	 * all individual PropertyAccessExceptions. All other properties will have been
 	 * successfully updated.
 	 * @see #setPropertyValues(PropertyValues, boolean, boolean)
@@ -185,7 +183,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyBatchUpdateException if one or more PropertyAccessExceptions
-	 * occured for specific properties during the batch update. This exception bundles
+	 * occurred for specific properties during the batch update. This exception bundles
 	 * all individual PropertyAccessExceptions. All other properties will have been
 	 * successfully updated.
 	 * @see #setPropertyValues(PropertyValues, boolean, boolean)
@@ -208,7 +206,7 @@ public interface PropertyAccessor {
 	 * @throws InvalidPropertyException if there is no such property or
 	 * if the property isn't writable
 	 * @throws PropertyBatchUpdateException if one or more PropertyAccessExceptions
-	 * occured for specific properties during the batch update. This exception bundles
+	 * occurred for specific properties during the batch update. This exception bundles
 	 * all individual PropertyAccessExceptions. All other properties will have been
 	 * successfully updated.
 	 */
@@ -75,7 +75,7 @@ class PropertyDescriptorUtils {
 		}

 		if (writeMethod != null) {
-			Class<?> params[] = writeMethod.getParameterTypes();
+			Class<?>[] params = writeMethod.getParameterTypes();
 			if (params.length != 1) {
 				throw new IntrospectionException("Bad write method arg count: " + writeMethod);
 			}
@@ -109,7 +109,7 @@ class PropertyDescriptorUtils {
 		Class<?> indexedPropertyType = null;

 		if (indexedReadMethod != null) {
-			Class<?> params[] = indexedReadMethod.getParameterTypes();
+			Class<?>[] params = indexedReadMethod.getParameterTypes();
 			if (params.length != 1) {
 				throw new IntrospectionException("Bad indexed read method arg count: " + indexedReadMethod);
 			}
@@ -123,7 +123,7 @@ class PropertyDescriptorUtils {
 		}

 		if (indexedWriteMethod != null) {
-			Class<?> params[] = indexedWriteMethod.getParameterTypes();
+			Class<?>[] params = indexedWriteMethod.getParameterTypes();
 			if (params.length != 2) {
 				throw new IntrospectionException("Bad indexed write method arg count: " + indexedWriteMethod);
 			}
@@ -59,6 +59,7 @@ import org.springframework.beans.propertyeditors.FileEditor;
 import org.springframework.beans.propertyeditors.InputSourceEditor;
 import org.springframework.beans.propertyeditors.InputStreamEditor;
 import org.springframework.beans.propertyeditors.LocaleEditor;
+import org.springframework.beans.propertyeditors.PathEditor;
 import org.springframework.beans.propertyeditors.PatternEditor;
 import org.springframework.beans.propertyeditors.PropertiesEditor;
 import org.springframework.beans.propertyeditors.ReaderEditor;
@@ -87,11 +88,21 @@ import org.springframework.util.ClassUtils;
 */
 public class PropertyEditorRegistrySupport implements PropertyEditorRegistry {

+	private static Class<?> pathClass;
+
 	private static Class<?> zoneIdClass;

 	static {
+		ClassLoader cl = PropertyEditorRegistrySupport.class.getClassLoader();
 		try {
-			zoneIdClass = ClassUtils.forName("java.time.ZoneId", PropertyEditorRegistrySupport.class.getClassLoader());
+			pathClass = ClassUtils.forName("java.nio.file.Path", cl);
+		}
+		catch (ClassNotFoundException ex) {
+			// Java 7 Path class not available
+			pathClass = null;
+		}
+		try {
+			zoneIdClass = ClassUtils.forName("java.time.ZoneId", cl);
 		}
 		catch (ClassNotFoundException ex) {
 			// Java 8 ZoneId class not available
@@ -211,6 +222,9 @@ public class PropertyEditorRegistrySupport implements PropertyEditorRegistry {
 		this.defaultEditors.put(InputStream.class, new InputStreamEditor());
 		this.defaultEditors.put(InputSource.class, new InputSourceEditor());
 		this.defaultEditors.put(Locale.class, new LocaleEditor());
+		if (pathClass != null) {
+			this.defaultEditors.put(pathClass, new PathEditor());
+		}
 		this.defaultEditors.put(Pattern.class, new PatternEditor());
 		this.defaultEditors.put(Properties.class, new PropertiesEditor());
 		this.defaultEditors.put(Reader.class, new ReaderEditor());
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -30,8 +30,8 @@ import org.springframework.util.StringUtils;
 * Helper class for calculating property matches, according to a configurable
 * distance. Provide the list of potential matches and an easy way to generate
 * an error message. Works for both java bean properties and fields.
- * <p>
- * Mainly for use within the framework and in particular the binding facility
+ *
+ * <p>Mainly for use within the framework and in particular the binding facility.
 *
 * @author Alef Arendsen
 * @author Arjen Poutsma
@@ -43,14 +43,12 @@ import org.springframework.util.StringUtils;
 */
 public abstract class PropertyMatches {

-	//---------------------------------------------------------------------
-	// Static section
-	//---------------------------------------------------------------------
-
 	/** Default maximum property distance: 2 */
 	public static final int DEFAULT_MAX_DISTANCE = 2;


+	// Static factory methods
+
 	/**
 	 * Create PropertyMatches for the given bean property.
 	 * @param propertyName the name of the property to find possible matches for
@@ -90,9 +88,7 @@ public abstract class PropertyMatches {
 	}


-	//---------------------------------------------------------------------
-	// Instance section
-	//---------------------------------------------------------------------
+	// Instance state

 	private final String propertyName;

@@ -107,18 +103,19 @@ public abstract class PropertyMatches {
 		this.possibleMatches = possibleMatches;
 	}

+
 	/**
 	 * Return the name of the requested property.
 	 */
 	public String getPropertyName() {
-		return propertyName;
+		return this.propertyName;
 	}

 	/**
 	 * Return the calculated possible matches.
 	 */
 	public String[] getPossibleMatches() {
-		return possibleMatches;
+		return this.possibleMatches;
 	}

 	/**
@@ -127,6 +124,9 @@ public abstract class PropertyMatches {
 	 */
 	public abstract String buildErrorMessage();

+
+	// Implementation support for subclasses
+
 	protected void appendHintMessage(StringBuilder msg) {
 		msg.append("Did you mean ");
 		for (int i = 0; i < this.possibleMatches.length; i++) {
@@ -150,14 +150,14 @@ public abstract class PropertyMatches {
 	 * @return the distance value
 	 */
 	private static int calculateStringDistance(String s1, String s2) {
-		if (s1.length() == 0) {
+		if (s1.isEmpty()) {
 			return s2.length();
 		}
-		if (s2.length() == 0) {
+		if (s2.isEmpty()) {
 			return s1.length();
 		}
-		int d[][] = new int[s1.length() + 1][s2.length() + 1];

+		int[][] d = new int[s1.length() + 1][s2.length() + 1];
 		for (int i = 0; i <= s1.length(); i++) {
 			d[i][0] = i;
 		}
@@ -166,45 +166,46 @@ public abstract class PropertyMatches {
 		}

 		for (int i = 1; i <= s1.length(); i++) {
-			char s_i = s1.charAt(i - 1);
+			char c1 = s1.charAt(i - 1);
 			for (int j = 1; j <= s2.length(); j++) {
 				int cost;
-				char t_j = s2.charAt(j - 1);
-				if (s_i == t_j) {
+				char c2 = s2.charAt(j - 1);
+				if (c1 == c2) {
 					cost = 0;
 				}
 				else {
 					cost = 1;
 				}
-				d[i][j] = Math.min(Math.min(d[i - 1][j] + 1, d[i][j - 1] + 1),
-						d[i - 1][j - 1] + cost);
+				d[i][j] = Math.min(Math.min(d[i - 1][j] + 1, d[i][j - 1] + 1), d[i - 1][j - 1] + cost);
 			}
 		}

 		return d[s1.length()][s2.length()];
 	}

+
+	// Concrete subclasses
+
 	private static class BeanPropertyMatches extends PropertyMatches {

-		private BeanPropertyMatches(String propertyName, Class<?> beanClass, int maxDistance) {
-			super(propertyName, calculateMatches(propertyName,
-					BeanUtils.getPropertyDescriptors(beanClass), maxDistance));
+		public BeanPropertyMatches(String propertyName, Class<?> beanClass, int maxDistance) {
+			super(propertyName,
+					calculateMatches(propertyName, BeanUtils.getPropertyDescriptors(beanClass), maxDistance));
 		}

 		/**
-		 * Generate possible property alternatives for the given property and
-		 * class. Internally uses the {@code getStringDistance} method, which
-		 * in turn uses the Levenshtein algorithm to determine the distance between
-		 * two Strings.
-		 * @param propertyDescriptors the JavaBeans property descriptors to search
+		 * Generate possible property alternatives for the given property and class.
+		 * Internally uses the {@code getStringDistance} method, which in turn uses
+		 * the Levenshtein algorithm to determine the distance between two Strings.
+		 * @param descriptors the JavaBeans property descriptors to search
 		 * @param maxDistance the maximum distance to accept
 		 */
-		private static String[] calculateMatches(String propertyName, PropertyDescriptor[] propertyDescriptors, int maxDistance) {
+		private static String[] calculateMatches(String name, PropertyDescriptor[] descriptors, int maxDistance) {
 			List<String> candidates = new ArrayList<String>();
-			for (PropertyDescriptor pd : propertyDescriptors) {
+			for (PropertyDescriptor pd : descriptors) {
 				if (pd.getWriteMethod() != null) {
 					String possibleAlternative = pd.getName();
-					if (calculateStringDistance(propertyName, possibleAlternative) <= maxDistance) {
+					if (calculateStringDistance(name, possibleAlternative) <= maxDistance) {
 						candidates.add(possibleAlternative);
 					}
 				}
@@ -213,40 +214,35 @@ public abstract class PropertyMatches {
 			return StringUtils.toStringArray(candidates);
 		}

-
 		@Override
 		public String buildErrorMessage() {
-			String propertyName = getPropertyName();
-			String[] possibleMatches = getPossibleMatches();
-			StringBuilder msg = new StringBuilder();
-			msg.append("Bean property '");
-			msg.append(propertyName);
-			msg.append("' is not writable or has an invalid setter method. ");
-
-			if (ObjectUtils.isEmpty(possibleMatches)) {
-				msg.append("Does the parameter type of the setter match the return type of the getter?");
+			StringBuilder msg = new StringBuilder(160);
+			msg.append("Bean property '").append(getPropertyName()).append(
+					"' is not writable or has an invalid setter method. ");
+			if (!ObjectUtils.isEmpty(getPossibleMatches())) {
+				appendHintMessage(msg);
 			}
 			else {
-				appendHintMessage(msg);
+				msg.append("Does the parameter type of the setter match the return type of the getter?");
 			}
 			return msg.toString();
 		}
-
 	}

+
 	private static class FieldPropertyMatches extends PropertyMatches {

-		private FieldPropertyMatches(String propertyName, Class<?> beanClass, int maxDistance) {
+		public FieldPropertyMatches(String propertyName, Class<?> beanClass, int maxDistance) {
 			super(propertyName, calculateMatches(propertyName, beanClass, maxDistance));
 		}

-		private static String[] calculateMatches(final String propertyName, Class<?> beanClass, final int maxDistance) {
+		private static String[] calculateMatches(final String name, Class<?> clazz, final int maxDistance) {
 			final List<String> candidates = new ArrayList<String>();
-			ReflectionUtils.doWithFields(beanClass, new ReflectionUtils.FieldCallback() {
+			ReflectionUtils.doWithFields(clazz, new ReflectionUtils.FieldCallback() {
 				@Override
 				public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {
 					String possibleAlternative = field.getName();
-					if (calculateStringDistance(propertyName, possibleAlternative) <= maxDistance) {
+					if (calculateStringDistance(name, possibleAlternative) <= maxDistance) {
 						candidates.add(possibleAlternative);
 					}
 				}
@@ -255,22 +251,16 @@ public abstract class PropertyMatches {
 			return StringUtils.toStringArray(candidates);
 		}

-
 		@Override
 		public String buildErrorMessage() {
-			String propertyName = getPropertyName();
-			String[] possibleMatches = getPossibleMatches();
-			StringBuilder msg = new StringBuilder();
-			msg.append("Bean property '");
-			msg.append(propertyName);
-			msg.append("' has no matching field. ");
-
-			if (!ObjectUtils.isEmpty(possibleMatches)) {
+			StringBuilder msg = new StringBuilder(80);
+			msg.append("Bean property '").append(getPropertyName()).append("' has no matching field.");
+			if (!ObjectUtils.isEmpty(getPossibleMatches())) {
+				msg.append(' ');
 				appendHintMessage(msg);
 			}
 			return msg.toString();
 		}
-
 	}

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -45,8 +45,6 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri

 	private final Object value;

-	private Object source;
-
 	private boolean optional = false;

 	private boolean converted = false;
@@ -78,12 +76,12 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri
 		Assert.notNull(original, "Original must not be null");
 		this.name = original.getName();
 		this.value = original.getValue();
-		this.source = original.getSource();
 		this.optional = original.isOptional();
 		this.converted = original.converted;
 		this.convertedValue = original.convertedValue;
 		this.conversionNecessary = original.conversionNecessary;
 		this.resolvedTokens = original.resolvedTokens;
+		setSource(original.getSource());
 		copyAttributesFrom(original);
 	}

@@ -97,10 +95,10 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri
 		Assert.notNull(original, "Original must not be null");
 		this.name = original.getName();
 		this.value = newValue;
-		this.source = original;
 		this.optional = original.isOptional();
 		this.conversionNecessary = original.conversionNecessary;
 		this.resolvedTokens = original.resolvedTokens;
+		setSource(original);
 		copyAttributesFrom(original);
 	}

@@ -129,16 +127,28 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri
 	 */
 	public PropertyValue getOriginalPropertyValue() {
 		PropertyValue original = this;
-		while (original.source instanceof PropertyValue && original.source != original) {
-			original = (PropertyValue) original.source;
+		Object source = getSource();
+		while (source instanceof PropertyValue && source != original) {
+			original = (PropertyValue) source;
+			source = original.getSource();
 		}
 		return original;
 	}

+	/**
+	 * Set whether this is an optional value, that is, to be ignored
+	 * when no corresponding property exists on the target class.
+	 * @since 3.0
+	 */
 	public void setOptional(boolean optional) {
 		this.optional = optional;
 	}

+	/**
+	 * Return whether this is an optional value, that is, to be ignored
+	 * when no corresponding property exists on the target class.
+	 * @since 3.0
+	 */
 	public boolean isOptional() {
 		return this.optional;
 	}
@@ -180,7 +190,7 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri
 		PropertyValue otherPv = (PropertyValue) other;
 		return (this.name.equals(otherPv.name) &&
 				ObjectUtils.nullSafeEquals(this.value, otherPv.value) &&
-				ObjectUtils.nullSafeEquals(this.source, otherPv.source));
+				ObjectUtils.nullSafeEquals(getSource(), otherPv.getSource()));
 	}

 	@Override
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -35,6 +35,7 @@ import org.springframework.core.convert.ConversionService;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.NumberUtils;
+import org.springframework.util.ReflectionUtils;
 import org.springframework.util.StringUtils;

 /**
@@ -269,7 +270,7 @@ class TypeConverterDelegate {
 			}
 			else {
 				// convertedValue == null
-				if (javaUtilOptionalEmpty != null && requiredType.equals(javaUtilOptionalEmpty.getClass())) {
+				if (javaUtilOptionalEmpty != null && requiredType == javaUtilOptionalEmpty.getClass()) {
 					convertedValue = javaUtilOptionalEmpty;
 				}
 			}
@@ -290,15 +291,15 @@ class TypeConverterDelegate {

 				// Definitely doesn't match: throw IllegalArgumentException/IllegalStateException
 				StringBuilder msg = new StringBuilder();
-				msg.append("Cannot convert value of type [").append(ClassUtils.getDescriptiveType(newValue));
-				msg.append("] to required type [").append(ClassUtils.getQualifiedName(requiredType)).append("]");
+				msg.append("Cannot convert value of type '").append(ClassUtils.getDescriptiveType(newValue));
+				msg.append("' to required type '").append(ClassUtils.getQualifiedName(requiredType)).append("'");
 				if (propertyName != null) {
 					msg.append(" for property '").append(propertyName).append("'");
 				}
 				if (editor != null) {
 					msg.append(": PropertyEditor [").append(editor.getClass().getName()).append(
-							"] returned inappropriate value of type [").append(
-							ClassUtils.getDescriptiveType(convertedValue)).append("]");
+							"] returned inappropriate value of type '").append(
+							ClassUtils.getDescriptiveType(convertedValue)).append("'");
 					throw new IllegalArgumentException(msg.toString());
 				}
 				else {
@@ -324,7 +325,7 @@ class TypeConverterDelegate {

 		if (Enum.class == requiredType) {
 			// target type is declared as raw enum, treat the trimmed value as <enum.fqn>.FIELD_NAME
-			int index = trimmedValue.lastIndexOf(".");
+			int index = trimmedValue.lastIndexOf('.');
 			if (index > - 1) {
 				String enumType = trimmedValue.substring(0, index);
 				String fieldName = trimmedValue.substring(index + 1);
@@ -353,6 +354,7 @@ class TypeConverterDelegate {
 			// to be checked, hence we don't return it right away.
 			try {
 				Field enumField = requiredType.getField(trimmedValue);
+				ReflectionUtils.makeAccessible(enumField);
 				convertedValue = enumField.get(null);
 			}
 			catch (Throwable ex) {
@@ -73,7 +73,7 @@ public abstract class TypeConverterSupport extends PropertyEditorRegistrySupport
 		catch (IllegalStateException ex) {
 			throw new ConversionNotSupportedException(value, requiredType, ex);
 		}
-		catch (Throwable ex) {
+		catch (IllegalArgumentException ex) {
 			throw new TypeMismatchException(value, requiredType, ex);
 		}
 	}
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -41,7 +41,7 @@ public class TypeMismatchException extends PropertyAccessException {


 	/**
-	 * Create a new TypeMismatchException.
+	 * Create a new {@code TypeMismatchException}.
 	 * @param propertyChangeEvent the PropertyChangeEvent that resulted in the problem
 	 * @param requiredType the required target type
 	 */
@@ -50,17 +50,17 @@ public class TypeMismatchException extends PropertyAccessException {
 	}

 	/**
-	 * Create a new TypeMismatchException.
+	 * Create a new {@code TypeMismatchException}.
 	 * @param propertyChangeEvent the PropertyChangeEvent that resulted in the problem
 	 * @param requiredType the required target type (or {@code null} if not known)
 	 * @param cause the root cause (may be {@code null})
 	 */
 	public TypeMismatchException(PropertyChangeEvent propertyChangeEvent, Class<?> requiredType, Throwable cause) {
 		super(propertyChangeEvent,
-				"Failed to convert property value of type [" +
-				ClassUtils.getDescriptiveType(propertyChangeEvent.getNewValue()) + "]" +
+				"Failed to convert property value of type '" +
+				ClassUtils.getDescriptiveType(propertyChangeEvent.getNewValue()) + "'" +
 				(requiredType != null ?
-				 " to required type [" + ClassUtils.getQualifiedName(requiredType) + "]" : "") +
+				 " to required type '" + ClassUtils.getQualifiedName(requiredType) + "'" : "") +
 				(propertyChangeEvent.getPropertyName() != null ?
 				 " for property '" + propertyChangeEvent.getPropertyName() + "'" : ""),
 				cause);
@@ -69,7 +69,7 @@ public class TypeMismatchException extends PropertyAccessException {
 	}

 	/**
-	 * Create a new TypeMismatchException without PropertyChangeEvent.
+	 * Create a new {@code TypeMismatchException} without a {@code PropertyChangeEvent}.
 	 * @param value the offending value that couldn't be converted (may be {@code null})
 	 * @param requiredType the required target type (or {@code null} if not known)
 	 */
@@ -78,14 +78,14 @@ public class TypeMismatchException extends PropertyAccessException {
 	}

 	/**
-	 * Create a new TypeMismatchException without PropertyChangeEvent.
+	 * Create a new {@code TypeMismatchException} without a {@code PropertyChangeEvent}.
 	 * @param value the offending value that couldn't be converted (may be {@code null})
 	 * @param requiredType the required target type (or {@code null} if not known)
 	 * @param cause the root cause (may be {@code null})
 	 */
 	public TypeMismatchException(Object value, Class<?> requiredType, Throwable cause) {
-		super("Failed to convert value of type [" + ClassUtils.getDescriptiveType(value) + "]" +
-				(requiredType != null ? " to required type [" + ClassUtils.getQualifiedName(requiredType) + "]" : ""),
+		super("Failed to convert value of type '" + ClassUtils.getDescriptiveType(value) + "'" +
+				(requiredType != null ? " to required type '" + ClassUtils.getQualifiedName(requiredType) + "'" : ""),
 				cause);
 		this.value = value;
 		this.requiredType = requiredType;
@@ -123,7 +123,7 @@ public class BeanCreationException extends FatalBeanException {

 	/**
 	 * Add a related cause to this bean creation exception,
-	 * not being a direct cause of the failure but having occured
+	 * not being a direct cause of the failure but having occurred
 	 * earlier in the creation of the same bean instance.
 	 * @param ex the related cause to add
 	 */
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -63,28 +63,35 @@ import org.springframework.core.ResolvableType;
 * are supposed to override beans of the same name in any parent factory.
 *
 * <p>Bean factory implementations should support the standard bean lifecycle interfaces
- * as far as possible. The full set of initialization methods and their standard order is:<br>
- * 1. BeanNameAware's {@code setBeanName}<br>
- * 2. BeanClassLoaderAware's {@code setBeanClassLoader}<br>
- * 3. BeanFactoryAware's {@code setBeanFactory}<br>
- * 4. ResourceLoaderAware's {@code setResourceLoader}
- * (only applicable when running in an application context)<br>
- * 5. ApplicationEventPublisherAware's {@code setApplicationEventPublisher}
- * (only applicable when running in an application context)<br>
- * 6. MessageSourceAware's {@code setMessageSource}
- * (only applicable when running in an application context)<br>
- * 7. ApplicationContextAware's {@code setApplicationContext}
- * (only applicable when running in an application context)<br>
- * 8. ServletContextAware's {@code setServletContext}
- * (only applicable when running in a web application context)<br>
- * 9. {@code postProcessBeforeInitialization} methods of BeanPostProcessors<br>
- * 10. InitializingBean's {@code afterPropertiesSet}<br>
- * 11. a custom init-method definition<br>
- * 12. {@code postProcessAfterInitialization} methods of BeanPostProcessors
+ * as far as possible. The full set of initialization methods and their standard order is:
+ * <ol>
+ * <li>BeanNameAware's {@code setBeanName}
+ * <li>BeanClassLoaderAware's {@code setBeanClassLoader}
+ * <li>BeanFactoryAware's {@code setBeanFactory}
+ * <li>EnvironmentAware's {@code setEnvironment}
+ * <li>EmbeddedValueResolverAware's {@code setEmbeddedValueResolver}
+ * <li>ResourceLoaderAware's {@code setResourceLoader}
+ * (only applicable when running in an application context)
+ * <li>ApplicationEventPublisherAware's {@code setApplicationEventPublisher}
+ * (only applicable when running in an application context)
+ * <li>MessageSourceAware's {@code setMessageSource}
+ * (only applicable when running in an application context)
+ * <li>ApplicationContextAware's {@code setApplicationContext}
+ * (only applicable when running in an application context)
+ * <li>ServletContextAware's {@code setServletContext}
+ * (only applicable when running in a web application context)
+ * <li>{@code postProcessBeforeInitialization} methods of BeanPostProcessors
+ * <li>InitializingBean's {@code afterPropertiesSet}
+ * <li>a custom init-method definition
+ * <li>{@code postProcessAfterInitialization} methods of BeanPostProcessors
+ * </ol>
 *
- * <p>On shutdown of a bean factory, the following lifecycle methods apply:<br>
- * 1. DisposableBean's {@code destroy}<br>
- * 2. a custom destroy-method definition
+ * <p>On shutdown of a bean factory, the following lifecycle methods apply:
+ * <ol>
+ * <li>{@code postProcessBeforeDestruction} methods of DestructionAwareBeanPostProcessors
+ * <li>DisposableBean's {@code destroy}
+ * <li>a custom destroy-method definition
+ * </ol>
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
@@ -151,23 +158,6 @@ public interface BeanFactory {
 	 */
 	<T> T getBean(String name, Class<T> requiredType) throws BeansException;

-	/**
-	 * Return the bean instance that uniquely matches the given object type, if any.
-	 * @param requiredType type the bean must match; can be an interface or superclass.
-	 * {@code null} is disallowed.
-	 * <p>This method goes into {@link ListableBeanFactory} by-type lookup territory
-	 * but may also be translated into a conventional by-name lookup based on the name
-	 * of the given type. For more extensive retrieval operations across sets of beans,
-	 * use {@link ListableBeanFactory} and/or {@link BeanFactoryUtils}.
-	 * @return an instance of the single bean matching the required type
-	 * @throws NoSuchBeanDefinitionException if no bean of the given type was found
-	 * @throws NoUniqueBeanDefinitionException if more than one bean of the given type was found
-	 * @throws BeansException if the bean could not be created
-	 * @since 3.0
-	 * @see ListableBeanFactory
-	 */
-	<T> T getBean(Class<T> requiredType) throws BeansException;
-
 	/**
 	 * Return an instance, which may be shared or independent, of the specified bean.
 	 * <p>Allows for specifying explicit constructor arguments / factory method arguments,
@@ -184,6 +174,23 @@ public interface BeanFactory {
 	 */
 	Object getBean(String name, Object... args) throws BeansException;

+	/**
+	 * Return the bean instance that uniquely matches the given object type, if any.
+	 * <p>This method goes into {@link ListableBeanFactory} by-type lookup territory
+	 * but may also be translated into a conventional by-name lookup based on the name
+	 * of the given type. For more extensive retrieval operations across sets of beans,
+	 * use {@link ListableBeanFactory} and/or {@link BeanFactoryUtils}.
+	 * @param requiredType type the bean must match; can be an interface or superclass.
+	 * {@code null} is disallowed.
+	 * @return an instance of the single bean matching the required type
+	 * @throws NoSuchBeanDefinitionException if no bean of the given type was found
+	 * @throws NoUniqueBeanDefinitionException if more than one bean of the given type was found
+	 * @throws BeansException if the bean could not be created
+	 * @since 3.0
+	 * @see ListableBeanFactory
+	 */
+	<T> T getBean(Class<T> requiredType) throws BeansException;
+
 	/**
 	 * Return an instance, which may be shared or independent, of the specified bean.
 	 * <p>Allows for specifying explicit constructor arguments / factory method arguments,
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -147,14 +147,7 @@ public abstract class BeanFactoryUtils {
 			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
 				String[] parentResult = beanNamesForTypeIncludingAncestors(
 						(ListableBeanFactory) hbf.getParentBeanFactory(), type);
-				List<String> resultList = new ArrayList<String>();
-				resultList.addAll(Arrays.asList(result));
-				for (String beanName : parentResult) {
-					if (!resultList.contains(beanName) && !hbf.containsLocalBean(beanName)) {
-						resultList.add(beanName);
-					}
-				}
-				result = StringUtils.toStringArray(resultList);
+				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
 		return result;
@@ -180,14 +173,7 @@ public abstract class BeanFactoryUtils {
 			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
 				String[] parentResult = beanNamesForTypeIncludingAncestors(
 						(ListableBeanFactory) hbf.getParentBeanFactory(), type);
-				List<String> resultList = new ArrayList<String>();
-				resultList.addAll(Arrays.asList(result));
-				for (String beanName : parentResult) {
-					if (!resultList.contains(beanName) && !hbf.containsLocalBean(beanName)) {
-						resultList.add(beanName);
-					}
-				}
-				result = StringUtils.toStringArray(resultList);
+				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
 		return result;
@@ -223,14 +209,7 @@ public abstract class BeanFactoryUtils {
 			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
 				String[] parentResult = beanNamesForTypeIncludingAncestors(
 						(ListableBeanFactory) hbf.getParentBeanFactory(), type, includeNonSingletons, allowEagerInit);
-				List<String> resultList = new ArrayList<String>();
-				resultList.addAll(Arrays.asList(result));
-				for (String beanName : parentResult) {
-					if (!resultList.contains(beanName) && !hbf.containsLocalBean(beanName)) {
-						resultList.add(beanName);
-					}
-				}
-				result = StringUtils.toStringArray(resultList);
+				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
 		return result;
@@ -446,6 +425,29 @@ public abstract class BeanFactoryUtils {
 		return uniqueBean(type, beansOfType);
 	}

+
+	/**
+	 * Merge the given bean names result with the given parent result.
+	 * @param result the local bean name result
+	 * @param parentResult the parent bean name result (possibly empty)
+	 * @param hbf the local bean factory
+	 * @return the merged result (possibly the local result as-is)
+	 * @since 4.3.15
+	 */
+	private static String[] mergeNamesWithParent(String[] result, String[] parentResult, HierarchicalBeanFactory hbf) {
+		if (parentResult.length == 0) {
+			return result;
+		}
+		List<String> merged = new ArrayList<String>(result.length + parentResult.length);
+		merged.addAll(Arrays.asList(result));
+		for (String beanName : parentResult) {
+			if (!merged.contains(beanName) && !hbf.containsLocalBean(beanName)) {
+				merged.add(beanName);
+			}
+		}
+		return StringUtils.toStringArray(merged);
+	}
+
 	/**
 	 * Extract a unique bean for the given type from the given Map of matching beans.
 	 * @param type type of bean to match
@@ -455,11 +457,11 @@ public abstract class BeanFactoryUtils {
 	 * @throws NoUniqueBeanDefinitionException if more than one bean of the given type was found
 	 */
 	private static <T> T uniqueBean(Class<T> type, Map<String, T> matchingBeans) {
-		int nrFound = matchingBeans.size();
-		if (nrFound == 1) {
+		int count = matchingBeans.size();
+		if (count == 1) {
 			return matchingBeans.values().iterator().next();
 		}
-		else if (nrFound > 1) {
+		else if (count > 1) {
 			throw new NoUniqueBeanDefinitionException(type, matchingBeans.keySet());
 		}
 		else {
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 package org.springframework.beans.factory;

 import org.springframework.beans.BeansException;
+import org.springframework.util.ClassUtils;

 /**
 * Thrown when a bean doesn't match the expected type.
@@ -45,8 +46,8 @@ public class BeanNotOfRequiredTypeException extends BeansException {
 	 * the expected type
 	 */
 	public BeanNotOfRequiredTypeException(String beanName, Class<?> requiredType, Class<?> actualType) {
-		super("Bean named '" + beanName + "' must be of type [" + requiredType.getName() +
-				"], but was actually of type [" + actualType.getName() + "]");
+		super("Bean named '" + beanName + "' is expected to be of type '" + ClassUtils.getQualifiedName(requiredType) +
+				"' but was actually of type '" + ClassUtils.getQualifiedName(actualType) + "'");
 		this.beanName = beanName;
 		this.requiredType = requiredType;
 		this.actualType = actualType;
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -46,8 +46,8 @@ public class CannotLoadBeanClassException extends FatalBeanException {
 	public CannotLoadBeanClassException(
 			String resourceDescription, String beanName, String beanClassName, ClassNotFoundException cause) {

-		super("Cannot find class [" + beanClassName + "] for bean with name '" + beanName +
-				"' defined in " + resourceDescription, cause);
+		super("Cannot find class [" + beanClassName + "] for bean with name '" + beanName + "'" +
+				(resourceDescription != null ? " defined in " + resourceDescription : ""), cause);
 		this.resourceDescription = resourceDescription;
 		this.beanName = beanName;
 		this.beanClassName = beanClassName;
@@ -64,8 +64,9 @@ public class CannotLoadBeanClassException extends FatalBeanException {
 	public CannotLoadBeanClassException(
 			String resourceDescription, String beanName, String beanClassName, LinkageError cause) {

-		super("Error loading class [" + beanClassName + "] for bean with name '" + beanName +
-				"' defined in " + resourceDescription + ": problem with class file or dependent class", cause);
+		super("Error loading class [" + beanClassName + "] for bean with name '" + beanName + "'" +
+				(resourceDescription != null ? " defined in " + resourceDescription : "") +
+				": problem with class file or dependent class", cause);
 		this.resourceDescription = resourceDescription;
 		this.beanName = beanName;
 		this.beanClassName = beanClassName;
--- a/Show More
+++ b/Show More