Update SNAPSHOT to 4.0.0-M1

Updates to java 17, framework 6, boot 3 and javax -> jakarta

.github/workflows/maven.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        java: ["8", "11", "16"]
+        java: ["17"]
 
     steps:
       - uses: actions/checkout@v2

.gitignore

@@ -20,5 +20,4 @@ _site/
 *.swo
 .vscode/
 .flattened-pom.xml
-.sdkmanrc
 

.sdkmanrc

@@ -0,0 +1,3 @@
+# Enable auto-env through the sdkman_auto_env config
+# Add key=value pairs of SDKs to use below
+java=17.0.1-tem

docs/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-openfeign</artifactId>
-		<version>3.1.0</version>
+		<version>4.0.0-M1</version>
 	</parent>
 	<artifactId>spring-cloud-openfeign-docs</artifactId>
 	<packaging>jar</packaging>

docs/src/main/asciidoc/_configprops.adoc

@@ -26,9 +26,12 @@
 |feign.httpclient.hc5.socket-timeout-unit |  | Default value for socket timeout unit.
 |feign.httpclient.max-connections | `200` | 
 |feign.httpclient.max-connections-per-route | `50` | 
+|feign.httpclient.ok-http.read-timeout | `60s` | {@link OkHttpClient} read timeout; defaults to 60 seconds.
 |feign.httpclient.time-to-live | `900` | 
 |feign.httpclient.time-to-live-unit |  | 
 |feign.metrics.enabled | `true` | Enables metrics capability for Feign.
+|feign.oauth2.enabled | `false` | Enables feign interceptor for managing oauth2 access token.
+|feign.oauth2.load-balanced | `false` | Enables load balancing for oauth2 access token provider.
 |feign.okhttp.enabled | `false` | Enables the use of the OK HTTP Client by Feign.
 
 |===

docs/src/main/asciidoc/spring-cloud-openfeign.adoc

@@ -196,6 +196,7 @@ feign:
 				capabilities:
 					- com.example.FooCapability
 					- com.example.BarCapability
+				queryMapEncoder: com.example.SimpleQueryMapEncoder
 				metrics.enabled: false
 ----
 
@@ -738,7 +739,7 @@ To work around this problem you can use an `ObjectProvider` when autowiring your
 [source,java,indent=0]
 ----
 @Autowired
-ObjectProvider<TestFeginClient> testFeginClient;
+ObjectProvider<TestFeignClient> testFeignClient;
 ----
 
 === Spring Data Support
@@ -760,6 +761,16 @@ feign.client.refresh-enabled=true
 ----
 TIP: DO NOT annotate the `@FeignClient` interface with the `@RefreshScope` annotation.
 
+=== OAuth2 Support
+OAuth2 support can be enabled by setting following flag:
+----
+feign.oauth2.enabled=true
+----
+When the flag is set to true, and the oauth2 client context resource details are present, a bean of class `OAuth2FeignRequestInterceptor` is created. Before each request, the interceptor resolves the required access token and includes it as a header.
+Sometimes, when load balancing is enabled for Feign clients, you may want to use load balancing for fetching access tokens, too. To do so, you should ensure that the load balancer is on the classpath (spring-cloud-starter-loadbalancer) and explicitly enable load balancing for OAuth2FeignRequestInterceptor by setting the following flag:
+----
+feign.oauth2.load-balanced=true
+----
 
 == Configuration properties
 

pom.xml

@@ -4,14 +4,14 @@
 		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-openfeign</artifactId>
-	<version>3.1.0</version>
+	<version>4.0.0-M1</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud OpenFeign</name>
 	<description>Spring Cloud OpenFeign</description>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.1.0</version>
+		<version>4.0.0-M1</version>
 		<relativePath/>
 	</parent>
 	<scm>
@@ -26,7 +26,7 @@
 	<properties>
 		<main.basedir>${basedir}</main.basedir>
 		<jackson.version>2.11.3</jackson.version>
-		<spring-cloud-commons.version>3.1.0</spring-cloud-commons.version>
+		<spring-cloud-commons.version>4.0.0-M1</spring-cloud-commons.version>
 
 		<!-- Plugin versions -->
 		<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
@@ -64,13 +64,6 @@
 					</additionalConfig>
 				</configuration>
 			</plugin>
-			<plugin>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-checkstyle-plugin</artifactId>

spring-cloud-openfeign-core/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-openfeign</artifactId>
-		<version>3.1.0</version>
+		<version>4.0.0-M1</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-openfeign-core</artifactId>
@@ -194,13 +194,13 @@
 		<dependency>
 			<groupId>com.google.protobuf</groupId>
 			<artifactId>protobuf-java</artifactId>
-			<version>3.14.0</version>
+			<version>3.19.3</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>io.vavr</groupId>
 			<artifactId>vavr</artifactId>
-			<version>0.10.3</version>
+			<version>0.10.4</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/AnnotatedParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/CachingCapability.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/CircuitBreakerNameResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/CollectionFormat.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/DefaultFeignLoggerFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/DefaultTargeter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/EnableFeignClients.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FallbackFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -18,14 +18,13 @@ package org.springframework.cloud.openfeign;
 
 import java.io.IOException;
 import java.lang.reflect.Method;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.concurrent.TimeUnit;
 
-import javax.annotation.PreDestroy;
-
 import com.fasterxml.jackson.databind.Module;
 import feign.Capability;
 import feign.Client;
@@ -35,6 +34,7 @@ import feign.Target;
 import feign.hc5.ApacheHttp5Client;
 import feign.httpclient.ApacheHttpClient;
 import feign.okhttp.OkHttpClient;
+import jakarta.annotation.PreDestroy;
 import okhttp3.ConnectionPool;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -55,11 +55,14 @@ import org.springframework.cache.interceptor.CacheInterceptor;
 import org.springframework.cloud.client.actuator.HasFeatures;
 import org.springframework.cloud.client.circuitbreaker.CircuitBreaker;
 import org.springframework.cloud.client.circuitbreaker.CircuitBreakerFactory;
+import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
+import org.springframework.cloud.client.loadbalancer.RetryLoadBalancerInterceptor;
 import org.springframework.cloud.commons.httpclient.ApacheHttpClientConnectionManagerFactory;
 import org.springframework.cloud.commons.httpclient.ApacheHttpClientFactory;
 import org.springframework.cloud.commons.httpclient.OkHttpClientConnectionPoolFactory;
 import org.springframework.cloud.commons.httpclient.OkHttpClientFactory;
 import org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptor;
+import org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptorConfigurer;
 import org.springframework.cloud.openfeign.support.FeignEncoderProperties;
 import org.springframework.cloud.openfeign.support.FeignHttpClientProperties;
 import org.springframework.cloud.openfeign.support.PageJacksonModule;
@@ -73,6 +76,8 @@ import org.springframework.data.domain.Sort;
 import org.springframework.security.oauth2.client.OAuth2ClientContext;
 import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
 
+import static org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptorBuilder.buildWithConfigurers;
+
 /**
  * @author Spencer Gibb
  * @author Julien Roy
@@ -84,6 +89,7 @@ import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResour
  * @author Andrii Bohutskyi
  * @author Kwangyong Kim
  * @author Sam Kruglov
+ * @author Wojciech Mąka
  */
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnClass(Feign.class)
@@ -268,8 +274,8 @@ public class FeignAutoConfiguration {
 		@ConditionalOnMissingBean(ConnectionPool.class)
 		public ConnectionPool httpClientConnectionPool(FeignHttpClientProperties httpClientProperties,
 				OkHttpClientConnectionPoolFactory connectionPoolFactory) {
-			Integer maxTotalConnections = httpClientProperties.getMaxConnections();
-			Long timeToLive = httpClientProperties.getTimeToLive();
+			int maxTotalConnections = httpClientProperties.getMaxConnections();
+			long timeToLive = httpClientProperties.getTimeToLive();
 			TimeUnit ttlUnit = httpClientProperties.getTimeToLiveUnit();
 			return connectionPoolFactory.create(maxTotalConnections, timeToLive, ttlUnit);
 		}
@@ -277,12 +283,13 @@ public class FeignAutoConfiguration {
 		@Bean
 		public okhttp3.OkHttpClient client(OkHttpClientFactory httpClientFactory, ConnectionPool connectionPool,
 				FeignHttpClientProperties httpClientProperties) {
-			Boolean followRedirects = httpClientProperties.isFollowRedirects();
-			Integer connectTimeout = httpClientProperties.getConnectionTimeout();
-			Boolean disableSslValidation = httpClientProperties.isDisableSslValidation();
+			boolean followRedirects = httpClientProperties.isFollowRedirects();
+			int connectTimeout = httpClientProperties.getConnectionTimeout();
+			boolean disableSslValidation = httpClientProperties.isDisableSslValidation();
+			Duration readTimeout = httpClientProperties.getOkHttp().getReadTimeout();
 			this.okHttpClient = httpClientFactory.createBuilder(disableSslValidation)
 					.connectTimeout(connectTimeout, TimeUnit.MILLISECONDS).followRedirects(followRedirects)
-					.connectionPool(connectionPool).build();
+					.readTimeout(readTimeout).connectionPool(connectionPool).build();
 			return this.okHttpClient;
 		}
 
@@ -322,12 +329,30 @@ public class FeignAutoConfiguration {
 	@ConditionalOnProperty("feign.oauth2.enabled")
 	protected static class Oauth2FeignConfiguration {
 
+		@ConditionalOnBean({ RetryLoadBalancerInterceptor.class, OAuth2ClientContext.class,
+				OAuth2ProtectedResourceDetails.class })
+		@ConditionalOnProperty(value = "feign.oauth2.load-balanced", havingValue = "true")
+		@Bean
+		public OAuth2FeignRequestInterceptorConfigurer retryLoadBalancerInterceptorInjectingConfigurer(
+				final RetryLoadBalancerInterceptor loadBalancerInterceptor) {
+			return builder -> builder.withAccessTokenProviderInterceptors(loadBalancerInterceptor);
+		}
+
+		@ConditionalOnBean({ LoadBalancerInterceptor.class, OAuth2ClientContext.class,
+				OAuth2ProtectedResourceDetails.class })
+		@ConditionalOnProperty(value = "feign.oauth2.load-balanced", havingValue = "true")
+		@Bean
+		public OAuth2FeignRequestInterceptorConfigurer loadBalancerInterceptorInjectingConfigurer(
+				final LoadBalancerInterceptor loadBalancerInterceptor) {
+			return builder -> builder.withAccessTokenProviderInterceptors(loadBalancerInterceptor);
+		}
+
 		@Bean
 		@ConditionalOnMissingBean(OAuth2FeignRequestInterceptor.class)
 		@ConditionalOnBean({ OAuth2ClientContext.class, OAuth2ProtectedResourceDetails.class })
 		public RequestInterceptor oauth2FeignRequestInterceptor(OAuth2ClientContext oAuth2ClientContext,
-				OAuth2ProtectedResourceDetails resource) {
-			return new OAuth2FeignRequestInterceptor(oAuth2ClientContext, resource);
+				OAuth2ProtectedResourceDetails resource, List<OAuth2FeignRequestInterceptorConfigurer> configurers) {
+			return buildWithConfigurers(oAuth2ClientContext, resource, configurers);
 		}
 
 	}

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignBuilderCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignCachingInvocationHandlerFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignCircuitBreaker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignCircuitBreakerDisabledConditions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignCircuitBreakerInvocationHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignCircuitBreakerTargeter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -68,6 +68,7 @@ import org.springframework.util.StringUtils;
  * @author Jonatan Ivanov
  * @author Sam Kruglov
  * @author Jasbir Singh
+ * @author Hyeonmin Park
  */
 public class FeignClientFactoryBean
 		implements FactoryBean<Object>, InitializingBean, ApplicationContextAware, BeanFactoryAware {
@@ -295,6 +296,10 @@ public class FeignClientFactoryBean
 		if (config.getCapabilities() != null) {
 			config.getCapabilities().stream().map(this::getOrInstantiate).forEach(builder::addCapability);
 		}
+
+		if (config.getQueryMapEncoder() != null) {
+			builder.queryMapEncoder(getOrInstantiate(config.getQueryMapEncoder()));
+		}
 	}
 
 	private void addDefaultQueryParams(FeignClientProperties.FeignClientConfiguration config, Feign.Builder builder) {
@@ -443,6 +448,9 @@ public class FeignClientFactoryBean
 	}
 
 	private String cleanPath() {
+		if (path == null) {
+			return "";
+		}
 		String path = this.path.trim();
 		if (StringUtils.hasLength(path)) {
 			if (!path.startsWith("/")) {

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientMetricsEnabledCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2021 the original author or authors.
+ * Copyright 2021-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -26,6 +26,7 @@ import feign.Capability;
 import feign.Contract;
 import feign.ExceptionPropagationPolicy;
 import feign.Logger;
+import feign.QueryMapEncoder;
 import feign.RequestInterceptor;
 import feign.Retryer;
 import feign.codec.Decoder;
@@ -40,6 +41,7 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
  * @author Ram Anaswara
  * @author Jonatan Ivanov
  * @author Olga Maciaszek-Sharma
+ * @author Hyeonmin Park
  */
 @ConfigurationProperties("feign.client")
 public class FeignClientProperties {
@@ -139,6 +141,8 @@ public class FeignClientProperties {
 
 		private List<Class<Capability>> capabilities;
 
+		private Class<QueryMapEncoder> queryMapEncoder;
+
 		private MetricsProperties metrics;
 
 		private Boolean followRedirects;
@@ -255,6 +259,14 @@ public class FeignClientProperties {
 			this.capabilities = capabilities;
 		}
 
+		public Class<QueryMapEncoder> getQueryMapEncoder() {
+			return queryMapEncoder;
+		}
+
+		public void setQueryMapEncoder(Class<QueryMapEncoder> queryMapEncoder) {
+			this.queryMapEncoder = queryMapEncoder;
+		}
+
 		public MetricsProperties getMetrics() {
 			return metrics;
 		}
@@ -289,7 +301,8 @@ public class FeignClientProperties {
 					&& Objects.equals(exceptionPropagationPolicy, that.exceptionPropagationPolicy)
 					&& Objects.equals(defaultRequestHeaders, that.defaultRequestHeaders)
 					&& Objects.equals(defaultQueryParameters, that.defaultQueryParameters)
-					&& Objects.equals(capabilities, that.capabilities) && Objects.equals(metrics, that.metrics)
+					&& Objects.equals(capabilities, that.capabilities)
+					&& Objects.equals(queryMapEncoder, that.queryMapEncoder) && Objects.equals(metrics, that.metrics)
 					&& Objects.equals(followRedirects, that.followRedirects);
 		}
 
@@ -297,7 +310,7 @@ public class FeignClientProperties {
 		public int hashCode() {
 			return Objects.hash(loggerLevel, connectTimeout, readTimeout, retryer, errorDecoder, requestInterceptors,
 					decode404, encoder, decoder, contract, exceptionPropagationPolicy, defaultQueryParameters,
-					defaultRequestHeaders, capabilities, metrics, followRedirects);
+					defaultRequestHeaders, capabilities, queryMapEncoder, metrics, followRedirects);
 		}
 
 	}

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientSpecification.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientsConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientsRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -302,7 +302,11 @@ class FeignClientsRegistrar implements ImportBeanDefinitionRegistrar, ResourceLo
 			if (resolver == null) {
 				return resolved;
 			}
-			return String.valueOf(resolver.evaluate(resolved, new BeanExpressionContext(beanFactory, null)));
+			Object evaluateValue = resolver.evaluate(resolved, new BeanExpressionContext(beanFactory, null));
+			if (evaluateValue != null) {
+				return String.valueOf(evaluateValue);
+			}
+			return null;
 		}
 		return value;
 	}

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignErrorDecoderFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2020 the original author or authors.
+ * Copyright 2020-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignFormatterRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignLoggerFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/HttpClient5DisabledConditions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/OptionsFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/SpringQueryMap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/Targeter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/CookieValueParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/MatrixVariableParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/PathVariableParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/QueryMapParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/RequestHeaderParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/RequestParamParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/RequestPartParameterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/clientconfig/FeignClientConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2019 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/clientconfig/HttpClient5FeignConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -23,11 +23,11 @@ import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
 import java.util.concurrent.TimeUnit;
 
-import javax.annotation.PreDestroy;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509TrustManager;
 
+import jakarta.annotation.PreDestroy;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hc.client5.http.config.RequestConfig;

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/clientconfig/HttpClientFeignConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -20,8 +20,7 @@ import java.io.IOException;
 import java.util.Timer;
 import java.util.TimerTask;
 
-import javax.annotation.PreDestroy;
-
+import jakarta.annotation.PreDestroy;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.http.client.config.RequestConfig;

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/clientconfig/OkHttpFeignConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -16,10 +16,10 @@
 
 package org.springframework.cloud.openfeign.clientconfig;
 
+import java.time.Duration;
 import java.util.concurrent.TimeUnit;
 
-import javax.annotation.PreDestroy;
-
+import jakarta.annotation.PreDestroy;
 import okhttp3.ConnectionPool;
 import okhttp3.OkHttpClient;
 
@@ -48,8 +48,8 @@ public class OkHttpFeignConfiguration {
 	@ConditionalOnMissingBean(ConnectionPool.class)
 	public ConnectionPool httpClientConnectionPool(FeignHttpClientProperties httpClientProperties,
 			OkHttpClientConnectionPoolFactory connectionPoolFactory) {
-		Integer maxTotalConnections = httpClientProperties.getMaxConnections();
-		Long timeToLive = httpClientProperties.getTimeToLive();
+		int maxTotalConnections = httpClientProperties.getMaxConnections();
+		long timeToLive = httpClientProperties.getTimeToLive();
 		TimeUnit ttlUnit = httpClientProperties.getTimeToLiveUnit();
 		return connectionPoolFactory.create(maxTotalConnections, timeToLive, ttlUnit);
 	}
@@ -57,11 +57,12 @@ public class OkHttpFeignConfiguration {
 	@Bean
 	public okhttp3.OkHttpClient client(OkHttpClientFactory httpClientFactory, ConnectionPool connectionPool,
 			FeignHttpClientProperties httpClientProperties) {
-		Boolean followRedirects = httpClientProperties.isFollowRedirects();
-		Integer connectTimeout = httpClientProperties.getConnectionTimeout();
+		boolean followRedirects = httpClientProperties.isFollowRedirects();
+		int connectTimeout = httpClientProperties.getConnectionTimeout();
+		Duration reaTimeout = httpClientProperties.getOkHttp().getReadTimeout();
 		this.okHttpClient = httpClientFactory.createBuilder(httpClientProperties.isDisableSslValidation())
 				.connectTimeout(connectTimeout, TimeUnit.MILLISECONDS).followRedirects(followRedirects)
-				.connectionPool(connectionPool).build();
+				.readTimeout(reaTimeout).connectionPool(connectionPool).build();
 		return this.okHttpClient;
 	}
 

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/BaseRequestInterceptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/FeignAcceptGzipEncodingAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/FeignAcceptGzipEncodingInterceptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/FeignClientEncodingProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/FeignContentGzipEncodingAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/FeignContentGzipEncodingInterceptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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 class FeignContentGzipEncodingInterceptor extends BaseRequestInterceptor
 	}
 
 	/**
-	 * Returns whether the content mime types matches the configures mime types.
+	 * Returns whether the content mime types matches the configured mime types.
 	 * @param contentTypes the content types
 	 * @return true if any specified content type matches the request content types
 	 */

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/encoding/HttpEncoding.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/hateoas/FeignHalAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/hateoas/WebConvertersCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/DefaultFeignLoadBalancerConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/FeignBlockingLoadBalancerClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/FeignLoadBalancerAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/HttpClient5FeignLoadBalancerConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/HttpClientFeignLoadBalancerConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/LoadBalancerResponseStatusCodeException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/LoadBalancerUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/OkHttpFeignLoadBalancerConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/OnRetryNotEnabledCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/loadbalancer/RetryableFeignBlockingLoadBalancerClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2019 the original author or authors.
+ * Copyright 2015-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptorBuilder.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2015-2022 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.openfeign.security;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.security.oauth2.client.OAuth2ClientContext;
+import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
+import org.springframework.security.oauth2.client.token.AccessTokenProvider;
+import org.springframework.security.oauth2.client.token.AccessTokenProviderChain;
+import org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport;
+import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsAccessTokenProvider;
+import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider;
+import org.springframework.security.oauth2.client.token.grant.implicit.ImplicitAccessTokenProvider;
+import org.springframework.security.oauth2.client.token.grant.password.ResourceOwnerPasswordAccessTokenProvider;
+
+/**
+ * Allows to customize pre-defined {@link OAuth2FeignRequestInterceptor} using configurer
+ * beans of class {@link OAuth2FeignRequestInterceptorConfigurer}. Each configurer
+ * instance can add {@link AccessTokenProvider} new {@link ClientHttpRequestInterceptor}
+ * instances.
+ *
+ * @author Wojciech Mąka
+ * @since 3.1.1
+ */
+public class OAuth2FeignRequestInterceptorBuilder {
+
+	private AccessTokenProvider accessTokenProvider;
+
+	private final List<ClientHttpRequestInterceptor> accessTokenProviderInterceptors = new ArrayList<>();
+
+	public OAuth2FeignRequestInterceptorBuilder() {
+		accessTokenProvider = new AccessTokenProviderChain(Arrays.<AccessTokenProvider>asList(
+				new AuthorizationCodeAccessTokenProvider(), new ImplicitAccessTokenProvider(),
+				new ResourceOwnerPasswordAccessTokenProvider(), new ClientCredentialsAccessTokenProvider()));
+	}
+
+	public OAuth2FeignRequestInterceptorBuilder withAccessTokenProviderInterceptors(
+			ClientHttpRequestInterceptor... interceptors) {
+		accessTokenProviderInterceptors.addAll(Arrays.asList(interceptors));
+		return this;
+	}
+
+	OAuth2FeignRequestInterceptor build(OAuth2ClientContext oAuth2ClientContext,
+			OAuth2ProtectedResourceDetails resource) {
+		if (OAuth2AccessTokenSupport.class.isAssignableFrom(accessTokenProvider.getClass())) {
+			((OAuth2AccessTokenSupport) accessTokenProvider).setInterceptors(accessTokenProviderInterceptors);
+		}
+		final OAuth2FeignRequestInterceptor feignRequestInterceptor = new OAuth2FeignRequestInterceptor(
+				oAuth2ClientContext, resource);
+		feignRequestInterceptor.setAccessTokenProvider(accessTokenProvider);
+		return feignRequestInterceptor;
+	}
+
+	public static OAuth2FeignRequestInterceptor buildWithConfigurers(OAuth2ClientContext oAuth2ClientContext,
+			OAuth2ProtectedResourceDetails resource, List<OAuth2FeignRequestInterceptorConfigurer> buildConfigurers) {
+		final OAuth2FeignRequestInterceptorBuilder builder = new OAuth2FeignRequestInterceptorBuilder();
+		for (OAuth2FeignRequestInterceptorConfigurer configurer : buildConfigurers) {
+			configurer.customize(builder);
+		}
+		return builder.build(oAuth2ClientContext, resource);
+	}
+
+}

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptorConfigurer.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2015-2022 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.openfeign.security;
+
+import org.springframework.security.oauth2.client.token.AccessTokenProvider;
+
+/**
+ * Interface for configurer beans working with
+ * {@link OAuth2FeignRequestInterceptorBuilder} in order to provide custom interceptors
+ * for {@link AccessTokenProvider} managed internally by
+ * {@link OAuth2FeignRequestInterceptor}.
+ *
+ * @author Wojciech Mąka
+ * @since 3.1.1
+ */
+@FunctionalInterface
+public interface OAuth2FeignRequestInterceptorConfigurer {
+
+	void customize(OAuth2FeignRequestInterceptorBuilder requestInterceptorBuilder);
+
+}

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/AbstractFormWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/EmptyObjectProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/FeignEncoderProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/FeignHttpClientProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -16,13 +16,17 @@
 
 package org.springframework.cloud.openfeign.support;
 
+import java.time.Duration;
 import java.util.concurrent.TimeUnit;
 
+import feign.okhttp.OkHttpClient;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 
 /**
  * @author Ryan Baxter
  * @author Nguyen Ky Thanh
+ * @author Olga Maciaszek-Sharma
  */
 @ConfigurationProperties(prefix = "feign.httpclient")
 public class FeignHttpClientProperties {
@@ -88,8 +92,13 @@ public class FeignHttpClientProperties {
 	 */
 	private Hc5Properties hc5 = new Hc5Properties();
 
+	/**
+	 * Additional {@link OkHttpClient}-specific properties.
+	 */
+	private OkHttp okHttp = new OkHttp();
+
 	public int getConnectionTimerRepeat() {
-		return this.connectionTimerRepeat;
+		return connectionTimerRepeat;
 	}
 
 	public void setConnectionTimerRepeat(int connectionTimerRepeat) {
@@ -97,7 +106,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public boolean isDisableSslValidation() {
-		return this.disableSslValidation;
+		return disableSslValidation;
 	}
 
 	public void setDisableSslValidation(boolean disableSslValidation) {
@@ -105,7 +114,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public int getMaxConnections() {
-		return this.maxConnections;
+		return maxConnections;
 	}
 
 	public void setMaxConnections(int maxConnections) {
@@ -113,7 +122,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public int getMaxConnectionsPerRoute() {
-		return this.maxConnectionsPerRoute;
+		return maxConnectionsPerRoute;
 	}
 
 	public void setMaxConnectionsPerRoute(int maxConnectionsPerRoute) {
@@ -121,7 +130,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public long getTimeToLive() {
-		return this.timeToLive;
+		return timeToLive;
 	}
 
 	public void setTimeToLive(long timeToLive) {
@@ -129,7 +138,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public TimeUnit getTimeToLiveUnit() {
-		return this.timeToLiveUnit;
+		return timeToLiveUnit;
 	}
 
 	public void setTimeToLiveUnit(TimeUnit timeToLiveUnit) {
@@ -137,7 +146,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public boolean isFollowRedirects() {
-		return this.followRedirects;
+		return followRedirects;
 	}
 
 	public void setFollowRedirects(boolean followRedirects) {
@@ -145,7 +154,7 @@ public class FeignHttpClientProperties {
 	}
 
 	public int getConnectionTimeout() {
-		return this.connectionTimeout;
+		return connectionTimeout;
 	}
 
 	public void setConnectionTimeout(int connectionTimeout) {
@@ -160,6 +169,14 @@ public class FeignHttpClientProperties {
 		this.hc5 = hc5;
 	}
 
+	public OkHttp getOkHttp() {
+		return okHttp;
+	}
+
+	public void setOkHttp(OkHttp okHttp) {
+		this.okHttp = okHttp;
+	}
+
 	public static class Hc5Properties {
 
 		/**
@@ -203,7 +220,7 @@ public class FeignHttpClientProperties {
 		private TimeUnit socketTimeoutUnit = DEFAULT_SOCKET_TIMEOUT_UNIT;
 
 		public PoolConcurrencyPolicy getPoolConcurrencyPolicy() {
-			return this.poolConcurrencyPolicy;
+			return poolConcurrencyPolicy;
 		}
 
 		public void setPoolConcurrencyPolicy(PoolConcurrencyPolicy poolConcurrencyPolicy) {
@@ -272,4 +289,24 @@ public class FeignHttpClientProperties {
 
 	}
 
+	/**
+	 * {@link OkHttpClient}-specific properties.
+	 */
+	public static class OkHttp {
+
+		/**
+		 * {@link OkHttpClient} read timeout; defaults to 60 seconds.
+		 */
+		private Duration readTimeout = Duration.ofSeconds(60);
+
+		public Duration getReadTimeout() {
+			return readTimeout;
+		}
+
+		public void setReadTimeout(Duration readTimeout) {
+			this.readTimeout = readTimeout;
+		}
+
+	}
+
 }

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/FeignUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/HttpMessageConverterCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/JsonFormWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/PageJacksonModule.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -22,6 +22,7 @@ import java.util.function.Function;
 
 import com.fasterxml.jackson.annotation.JsonAlias;
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.Version;
 import com.fasterxml.jackson.databind.Module;
@@ -59,6 +60,7 @@ public class PageJacksonModule extends Module {
 	}
 
 	@JsonDeserialize(as = SimplePageImpl.class)
+	@JsonIgnoreProperties(ignoreUnknown = true)
 	private interface PageMixIn {
 
 	}
@@ -86,7 +88,7 @@ public class PageJacksonModule extends Module {
 			}
 		}
 
-		@JsonIgnore
+		@JsonProperty
 		@Override
 		public int getTotalPages() {
 			return delegate.getTotalPages();
@@ -110,7 +112,7 @@ public class PageJacksonModule extends Module {
 			return delegate.getSize();
 		}
 
-		@JsonIgnore
+		@JsonProperty
 		@Override
 		public int getNumberOfElements() {
 			return delegate.getNumberOfElements();
@@ -134,13 +136,13 @@ public class PageJacksonModule extends Module {
 			return delegate.getSort();
 		}
 
-		@JsonIgnore
+		@JsonProperty
 		@Override
 		public boolean isFirst() {
 			return delegate.isFirst();
 		}
 
-		@JsonIgnore
+		@JsonProperty
 		@Override
 		public boolean isLast() {
 			return delegate.isLast();

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/PageableSpringEncoder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/PageableSpringQueryMapEncoder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/ResponseEntityDecoder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/SortJacksonModule.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/SortJsonComponent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/SpringDecoder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/SpringEncoder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/support/SpringMvcContract.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -61,6 +61,18 @@
 			"type": "java.lang.Boolean",
 			"description": "Enables options value refresh capability for Feign.",
 			"defaultValue": "false"
+		},
+		{
+			"name": "feign.oauth2.enabled",
+			"type": "java.lang.Boolean",
+			"description": "Enables feign interceptor for managing oauth2 access token.",
+			"defaultValue": "false"
+		},
+		{
+			"name": "feign.oauth2.load-balanced",
+			"type": "java.lang.Boolean",
+			"description": "Enables load balancing for oauth2 access token provider.",
+			"defaultValue": "false"
 		}
 	]
 }

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/EnableFeignClientsSpringDataTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/EnableFeignClientsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -23,10 +23,19 @@ import org.assertj.core.api.Condition;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.assertj.AssertableApplicationContext;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.cloud.client.circuitbreaker.CircuitBreakerFactory;
+import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
 import org.springframework.cloud.openfeign.FeignAutoConfiguration.CircuitBreakerPresentFeignTargeterConfiguration.DefaultCircuitBreakerNameResolver;
+import org.springframework.cloud.openfeign.security.MockOAuth2ClientContext;
+import org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptor;
+import org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptorBuilder;
+import org.springframework.cloud.openfeign.security.OAuth2FeignRequestInterceptorConfigurer;
 import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.support.BasicAuthenticationInterceptor;
+import org.springframework.security.oauth2.client.resource.BaseOAuth2ProtectedResourceDetails;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
@@ -36,6 +45,7 @@ import static org.mockito.Mockito.mock;
  * @author Olga Maciaszek-Sharma
  * @author Andrii Bohutskyi
  * @author Kwangyong Kim
+ * @author Wojciech Mąka
  */
 class FeignAutoConfigurationTests {
 
@@ -81,6 +91,66 @@ class FeignAutoConfigurationTests {
 				});
 	}
 
+	@Test
+	void shouldInstantiateFeignOAuth2FeignRequestInterceptorWithoutInterceptors() {
+		runner.withPropertyValues("feign.oauth2.enabled=true").withBean(MockOAuth2ClientContext.class, "token")
+				.withBean(BaseOAuth2ProtectedResourceDetails.class)
+				.withBean(LoadBalancerInterceptor.class, () -> mock(LoadBalancerInterceptor.class)).run(ctx -> {
+					assertOauth2FeignRequestInterceptorExists(ctx);
+					assertAccessTokenProviderInterceptorNotExists(ctx, LoadBalancerInterceptor.class);
+				});
+	}
+
+	@Test
+	void shouldInstantiateFeignOAuth2FeignRequestInterceptorWithLoadBalancedInterceptor() {
+		runner.withPropertyValues("feign.oauth2.enabled=true", "feign.oauth2.load-balanced=true")
+				.withBean(MockOAuth2ClientContext.class, "token").withBean(BaseOAuth2ProtectedResourceDetails.class)
+				.withBean(LoadBalancerInterceptor.class, () -> mock(LoadBalancerInterceptor.class)).run(ctx -> {
+					assertOauth2FeignRequestInterceptorExists(ctx);
+					assertAccessTokenProviderInterceptorExists(ctx, LoadBalancerInterceptor.class);
+				});
+	}
+
+	@Test
+	void shouldInstantiateFeignOAuth2FeignRequestInterceptorWithoutLoadBalancedInterceptorIfNoBeanPresent() {
+		runner.withPropertyValues("feign.oauth2.enabled=true", "feign.oauth2.load-balanced=true")
+				.withBean(MockOAuth2ClientContext.class, "token").withBean(BaseOAuth2ProtectedResourceDetails.class)
+				.run(ctx -> {
+					assertOauth2FeignRequestInterceptorExists(ctx);
+					assertAccessTokenProviderInterceptorNotExists(ctx, LoadBalancerInterceptor.class);
+				});
+	}
+
+	@Test
+	void shouldInstantiateFeignOAuth2FeignRequestInterceptorWithCustomAccessTokenProviderInterceptor() {
+		runner.withPropertyValues("feign.oauth2.enabled=true").withBean(MockOAuth2ClientContext.class, "token")
+				.withBean(BaseOAuth2ProtectedResourceDetails.class)
+				.withBean(CustomOAuth2FeignRequestInterceptorConfigurer.class).run(ctx -> {
+					assertOauth2FeignRequestInterceptorExists(ctx);
+					assertAccessTokenProviderInterceptorExists(ctx, BasicAuthenticationInterceptor.class);
+				});
+	}
+
+	private void assertOauth2FeignRequestInterceptorExists(ConfigurableApplicationContext ctx) {
+		AssertableApplicationContext context = AssertableApplicationContext.get(() -> ctx);
+		assertThat(context).hasSingleBean(OAuth2FeignRequestInterceptor.class);
+	}
+
+	private void assertAccessTokenProviderInterceptorExists(ConfigurableApplicationContext ctx,
+			Class<? extends ClientHttpRequestInterceptor> clazz) {
+		AssertableApplicationContext context = AssertableApplicationContext.get(() -> ctx);
+		assertThat(context).getBean(OAuth2FeignRequestInterceptor.class).extracting("accessTokenProvider")
+				.extracting("interceptors").asList().first().isInstanceOf(clazz);
+	}
+
+	private void assertAccessTokenProviderInterceptorNotExists(ConfigurableApplicationContext ctx,
+			Class<? extends ClientHttpRequestInterceptor> clazz) {
+		AssertableApplicationContext context = AssertableApplicationContext.get(() -> ctx);
+		assertThat(context).getBean(OAuth2FeignRequestInterceptor.class).extracting("accessTokenProvider")
+				.extracting("interceptors").asList().filteredOn(obj -> clazz.isAssignableFrom(obj.getClass()))
+				.isEmpty();
+	}
+
 	private void assertOnlyOneTargeterPresent(ConfigurableApplicationContext ctx, Class<?> beanClass) {
 		assertThat(ctx.getBeansOfType(Targeter.class)).hasSize(1).hasValueSatisfying(new Condition<>(
 				beanClass::isInstance, String.format("Targeter should be an instance of %s", beanClass)));
@@ -108,4 +178,14 @@ class FeignAutoConfigurationTests {
 
 	}
 
+	static class CustomOAuth2FeignRequestInterceptorConfigurer implements OAuth2FeignRequestInterceptorConfigurer {
+
+		@Override
+		public void customize(OAuth2FeignRequestInterceptorBuilder requestInterceptorBuilder) {
+			requestInterceptorBuilder
+					.withAccessTokenProviderInterceptors(new BasicAuthenticationInterceptor("username", "password"));
+		}
+
+	}
+
 }

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignBuilderCustomizerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientBuilderTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientCacheTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2020 the original author or authors.
+ * Copyright 2020-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2021 the original author or authors.
+ * Copyright 2021-2022 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 @@ import feign.Capability;
 import feign.Contract;
 import feign.ExceptionPropagationPolicy;
 import feign.Logger;
+import feign.QueryMapEncoder;
 import feign.RequestInterceptor;
 import feign.Retryer;
 import feign.codec.Decoder;
@@ -43,6 +44,7 @@ import static org.springframework.cloud.openfeign.test.EqualsAndHashCodeAssert.a
 
 /**
  * @author Jonatan Ivanov
+ * @author Hyeonmin Park
  */
 class FeignClientConfigurationTests {
 
@@ -64,6 +66,7 @@ class FeignClientConfigurationTests {
 		assertThat(config.getContract()).isNull();
 		assertThat(config.getExceptionPropagationPolicy()).isNull();
 		assertThat(config.getCapabilities()).isNull();
+		assertThat(config.getQueryMapEncoder()).isNull();
 		assertThat(config.getMetrics()).isNull();
 	}
 
@@ -88,6 +91,7 @@ class FeignClientConfigurationTests {
 		config.setExceptionPropagationPolicy(ExceptionPropagationPolicy.UNWRAP);
 		List<Class<Capability>> capabilities = Lists.list(Capability.class);
 		config.setCapabilities(capabilities);
+		config.setQueryMapEncoder(QueryMapEncoder.class);
 		FeignClientProperties.MetricsProperties metrics = new FeignClientProperties.MetricsProperties();
 		config.setMetrics(metrics);
 
@@ -105,6 +109,7 @@ class FeignClientConfigurationTests {
 		assertThat(config.getContract()).isSameAs(Contract.class);
 		assertThat(config.getExceptionPropagationPolicy()).isSameAs(ExceptionPropagationPolicy.UNWRAP);
 		assertThat(config.getCapabilities()).isSameAs(capabilities);
+		assertThat(config.getQueryMapEncoder()).isSameAs(QueryMapEncoder.class);
 		assertThat(config.getMetrics()).isSameAs(metrics);
 	}
 

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientDisabledClientLevelFeaturesTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2021 the original author or authors.
+ * Copyright 2021-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientDisabledFeaturesTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2021 the original author or authors.
+ * Copyright 2021-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientErrorDecoderTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2020 the original author or authors.
+ * Copyright 2020-2022 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.

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/FeignClientFactoryTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.