Use Duration for ServerProperties.Jetty.idleTimeout

See gh-18206

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ServerProperties.java

@@ -919,7 +919,7 @@ public class ServerProperties {
 		/**
 		 * Maximum thread idle time.
 		 */
-		private Integer idleTimeout = 60000;
+		private Duration idleTimeout = Duration.ofMillis(60000);
 
 		public Accesslog getAccesslog() {
 			return this.accesslog;
@@ -965,11 +965,11 @@ public class ServerProperties {
 			return this.maxThreads;
 		}
 
-		public void setIdleTimeout(Integer idleTimeout) {
+		public void setIdleTimeout(Duration idleTimeout) {
 			this.idleTimeout = idleTimeout;
 		}
 
-		public Integer getIdleTimeout() {
+		public Duration getIdleTimeout() {
 			return this.idleTimeout;
 		}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/embedded/JettyWebServerFactoryCustomizer.java

@@ -86,8 +86,9 @@ public class JettyWebServerFactoryCustomizer
 				.to((maxThreads) -> customizeThreadPool(factory, (threadPool) -> threadPool.setMaxThreads(maxThreads)));
 		propertyMapper.from(jettyProperties::getMinThreads).when(this::isPositive)
 				.to((minThreads) -> customizeThreadPool(factory, (threadPool) -> threadPool.setMinThreads(minThreads)));
-		propertyMapper.from(jettyProperties::getIdleTimeout).when(this::isPositive).to(
-				(idleTimeout) -> customizeThreadPool(factory, (threadPool) -> threadPool.setIdleTimeout(idleTimeout)));
+		propertyMapper.from(jettyProperties::getIdleTimeout).whenNonNull()
+				.to((idleTimeout) -> customizeThreadPool(factory,
+						(threadPool) -> threadPool.setIdleTimeout((int) idleTimeout.toMillis())));
 		propertyMapper.from(properties::getConnectionTimeout).whenNonNull()
 				.to((connectionTimeout) -> customizeConnectionTimeout(factory, connectionTimeout));
 		propertyMapper.from(jettyProperties::getAccesslog).when(ServerProperties.Jetty.Accesslog::isEnabled)

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesTests.java

@@ -233,8 +233,8 @@ class ServerPropertiesTests {
 
 	@Test
 	void testCustomizeJettyIdleTimeout() {
-		bind("server.jetty.idle-timeout", "10");
-		assertThat(this.properties.getJetty().getIdleTimeout()).isEqualTo(10);
+		bind("server.jetty.idle-timeout", "10s");
+		assertThat(this.properties.getJetty().getIdleTimeout()).isEqualTo(Duration.ofSeconds(10));
 	}
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/embedded/JettyWebServerFactoryCustomizerTests.java

@@ -132,10 +132,10 @@ class JettyWebServerFactoryCustomizerTests {
 
 	@Test
 	void idleTimeoutCanBeCustomized() {
-		bind("server.jetty.idle-timeout=100");
+		bind("server.jetty.idle-timeout=100s");
 		JettyWebServer server = customizeAndGetServer();
 		QueuedThreadPool threadPool = (QueuedThreadPool) server.getServer().getThreadPool();
-		assertThat(threadPool.getIdleTimeout()).isEqualTo(100);
+		assertThat(threadPool.getIdleTimeout()).isEqualTo(100000);
 	}
 
 	private CustomRequestLog getRequestLog(JettyWebServer server) {