Allow for building and testing the 3.2.x line against OpenJDK 8

build.gradle

@@ -12,6 +12,11 @@ configure(allprojects) { project ->
 	group = "org.springframework"
 	version = qualifyVersionIfNecessary(version)
 
+	// The following is a work-around until the Gradle build uses
+	// Ant 1.9.x by default. This is necessary to avoid the
+	// "Class not found: javac1.8" issue with Ant versions prior to 1.9.x
+	ant.properties["build.compiler"] = "javac1.7"
+
 	ext.aspectjVersion  = "1.7.2"
 	ext.hsqldbVersion   = "1.8.0.10"
 	ext.junitVersion    = "4.11"
@@ -118,6 +123,7 @@ configure(subprojects - project(":spring-build-src")) { subproject ->
 		options.author = true
 		options.header = project.name
 		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.
@@ -811,6 +817,7 @@ configure(rootProject) {
 		options.stylesheetFile = file("src/api/stylesheet.css")
 		options.splitIndex = true
 		options.links(project.ext.javadocLinks)
+		options.addStringOption('Xdoclint:none', '-quiet')
 
 		source subprojects.collect { project ->
 			project.sourceSets.main.allJava

spring-core/src/main/java/org/springframework/core/JdkVersion.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -54,6 +54,11 @@ public abstract class JdkVersion {
 	 */
 	public static final int JAVA_17 = 4;
 
+	/**
+	 * Constant identifying the 1.8 JVM (Java 8).
+	 */
+	public static final int JAVA_18 = 5;
+
 
 	private static final String javaVersion;
 
@@ -62,7 +67,10 @@ public abstract class JdkVersion {
 	static {
 		javaVersion = System.getProperty("java.version");
 		// version String should look like "1.4.2_10"
-		if (javaVersion.contains("1.7.")) {
+		if (javaVersion.contains("1.8.")) {
+			majorJavaVersion = JAVA_18;
+		}
+		else if (javaVersion.contains("1.7.")) {
 			majorJavaVersion = JAVA_17;
 		}
 		else if (javaVersion.contains("1.6.")) {
@@ -87,7 +95,7 @@ public abstract class JdkVersion {
 
 	/**
 	 * Get the major version code. This means we can do things like
-	 * {@code if (getMajorJavaVersion() < JAVA_14)}.
+	 * {@code if (getMajorJavaVersion() >= JAVA_17)}.
 	 * @return a code comparable to the JAVA_XX codes in this class
 	 * @see #JAVA_13
 	 * @see #JAVA_14