Polish "Add support for configuring a custom SessionTimeout bean"

See gh-49883

documentation/spring-boot-docs/src/docs/antora/modules/reference/pages/web/spring-session.adoc

@@ -27,6 +27,7 @@ spring:
 
 For setting the timeout of the session you can use the configprop:spring.session.timeout[] property.
 If that property is not set with a servlet web application, the auto-configuration falls back to the value of configprop:server.servlet.session.timeout[].
+To provide the timeout programmatically, define a javadoc:org.springframework.boot.session.autoconfigure.SessionTimeout[] bean.
 
 You can take control over Spring Session's configuration using `@Enable*HttpSession` (servlet) or `@EnableRedisWebSession` (reactive).
 This will cause the auto-configuration to back off.

module/spring-boot-session-data-redis/src/dockerTest/java/org/springframework/boot/session/data/redis/autoconfigure/SessionDataRedisAutoConfigurationTests.java

@@ -30,6 +30,7 @@ import org.springframework.boot.context.properties.source.InvalidConfigurationPr
 import org.springframework.boot.data.redis.autoconfigure.DataRedisAutoConfiguration;
 import org.springframework.boot.session.autoconfigure.AbstractSessionAutoConfigurationTests;
 import org.springframework.boot.session.autoconfigure.SessionAutoConfiguration;
+import org.springframework.boot.session.autoconfigure.SessionTimeout;
 import org.springframework.boot.test.context.assertj.AssertableWebApplicationContext;
 import org.springframework.boot.test.context.runner.ContextConsumer;
 import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
@@ -104,6 +105,17 @@ class SessionDataRedisAutoConfigurationTests extends AbstractSessionAutoConfigur
 			});
 	}
 
+	@Test
+	void defaultConfigWithCustomSessionTimeoutBean() {
+		this.contextRunner.withBean(SessionTimeout.class, () -> () -> Duration.ofSeconds(4))
+			.withPropertyValues("spring.data.redis.host=" + redis.getHost(),
+					"spring.data.redis.port=" + redis.getFirstMappedPort(), "spring.session.timeout=1m")
+			.run((context) -> {
+				RedisSessionRepository repository = validateSessionRepository(context, RedisSessionRepository.class);
+				assertThat(repository).hasFieldOrPropertyWithValue("defaultMaxInactiveInterval", Duration.ofSeconds(4));
+			});
+	}
+
 	@Test
 	void defaultRedisSessionStoreWithCustomizations() {
 		this.contextRunner

module/spring-boot-session-jdbc/src/test/java/org/springframework/boot/session/jdbc/autoconfigure/JdbcSessionAutoConfigurationTests.java

@@ -34,6 +34,7 @@ import org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer;
 import org.springframework.boot.liquibase.autoconfigure.LiquibaseAutoConfiguration;
 import org.springframework.boot.session.autoconfigure.AbstractSessionAutoConfigurationTests;
 import org.springframework.boot.session.autoconfigure.SessionAutoConfiguration;
+import org.springframework.boot.session.autoconfigure.SessionTimeout;
 import org.springframework.boot.sql.init.DatabaseInitializationMode;
 import org.springframework.boot.sql.init.DatabaseInitializationSettings;
 import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
@@ -108,6 +109,17 @@ class JdbcSessionAutoConfigurationTests extends AbstractSessionAutoConfiguration
 		});
 	}
 
+	@Test
+	void customSessionTimeoutBean() {
+		this.contextRunner.withBean(SessionTimeout.class, () -> () -> Duration.ofSeconds(4))
+			.withPropertyValues("spring.session.timeout=1m")
+			.run((context) -> {
+				JdbcIndexedSessionRepository repository = validateSessionRepository(context,
+						JdbcIndexedSessionRepository.class);
+				assertThat(repository).hasFieldOrPropertyWithValue("defaultMaxInactiveInterval", Duration.ofSeconds(4));
+			});
+	}
+
 	@Test
 	void customTableName() {
 		this.contextRunner.withPropertyValues("spring.session.jdbc.table-name=FOO_BAR",