Upgrade to Tomcat 11.0.6

Closes gh-45475

gradle.properties

@@ -21,6 +21,6 @@ nativeBuildToolsVersion=0.10.6
 snakeYamlVersion=2.4
 springFrameworkVersion=6.2.7-SNAPSHOT
 springFramework60xVersion=6.0.23
-tomcatVersion=10.1.40
+tomcatVersion=11.0.6
 
 kotlin.stdlib.default.dependency=false

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

@@ -517,7 +517,7 @@ public class ServerProperties {
 		 * Maximum number of parameters (GET plus POST) that will be automatically parsed
 		 * by the container. A value of less than 0 means no limit.
 		 */
-		private int maxParameterCount = 10000;
+		private int maxParameterCount = 1000;
 
 		/**
 		 * Whether to use APR.

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -2514,10 +2514,6 @@ bom {
 		}
 	}
 	library("Tomcat", "${tomcatVersion}") {
-		prohibit {
-			versionRange "[11.0.0-M1,)"
-			because "it exceeds our Jakarte EE 10 baseline"
-		}
 		group("org.apache.tomcat") {
 			modules = [
 				"tomcat-annotations-api",

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/tomcat/DisableReferenceClearingContextCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2022 the original author or authors.
+ * Copyright 2012-2025 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.
@@ -33,7 +33,6 @@ class DisableReferenceClearingContextCustomizer implements TomcatContextCustomiz
 			return;
 		}
 		try {
-			standardContext.setClearReferencesObjectStreamClassCaches(false);
 			standardContext.setClearReferencesRmiTargets(false);
 			standardContext.setClearReferencesThreadLocals(false);
 		}

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/tomcat/TomcatReactiveWebServerFactoryTests.java

@@ -220,7 +220,6 @@ class TomcatReactiveWebServerFactoryTests extends AbstractReactiveWebServerFacto
 		this.webServer.start();
 		Tomcat tomcat = ((TomcatWebServer) this.webServer).getTomcat();
 		StandardContext context = (StandardContext) tomcat.getHost().findChildren()[0];
-		assertThat(context.getClearReferencesObjectStreamClassCaches()).isFalse();
 		assertThat(context.getClearReferencesRmiTargets()).isFalse();
 		assertThat(context.getClearReferencesThreadLocals()).isFalse();
 	}

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/tomcat/TomcatServletWebServerFactoryTests.java

@@ -538,7 +538,6 @@ class TomcatServletWebServerFactoryTests extends AbstractServletWebServerFactory
 		this.webServer.start();
 		Tomcat tomcat = ((TomcatWebServer) this.webServer).getTomcat();
 		StandardContext context = (StandardContext) tomcat.getHost().findChildren()[0];
-		assertThat(context.getClearReferencesObjectStreamClassCaches()).isFalse();
 		assertThat(context.getClearReferencesRmiTargets()).isFalse();
 		assertThat(context.getClearReferencesThreadLocals()).isFalse();
 	}