JDK 5.0 刚刚发布， 6.0 马上接踵而来， 抢先体验:
JDK 6.0 Source Snapshot Releases
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If you have questions about building the source please post them in our Building J2SE forum. You can also view the latest summary of changes in Mustang and download the JDK 6.0 Binary Snapshot Releases.
JDK 6.0 Source under the JRL license
http://www.Java.net/download/jdk-6_0-ea-src-b12-jrl-11_nov_2004.jar
JDK 6.0 Readme and Build InstrUCtions
JDK Binaries for Source Build 6.0
http://www.java.net/download/jdk-6_0-ea-bin-b12-jrl-11_nov_2004.jar
Mozilla Binaries for Source Build 6.0 (Unix)
http://www.java.net/download/jdk-6_0-ea-mozilla_headers-unix-11_nov_2004.jar
Mozilla Binaries for Source Build 6.0 (Windows)
http://www.java.net/download/jdk-6_0-ea-mozilla_headers-windows-i586-11_nov_2004.jar