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java,jdk,mac osx

Installing JDK 7 on Mac OS X

 To get JDK 7 up,

Surgery required.  So, I headed over to:

/System/Library/Frameworks/JavaVM.framework/Versions

This is where the system jvm's are stored.  You'll notice a symbolic link for CurrentJDK.  It probably points to:

/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents

You're going to want to point that to the new JDK, which java_home tells us is located in:

bone@zen:/usr/libexec$ /usr/libexec/java_home
/Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home

So, the magic commands you need are:

bone@zen:/System/Library/Frameworks/JavaVM.framework/Versions$ sudo rm CurrentJDK
bone@zen:/System/Library/Frameworks/JavaVM.framework/Versions$ sudo ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/ CurrentJDK

Then, you should be good:

bone@zen:/System/Library/Frameworks/JavaVM.framework/Versions$ java -version 
java version "1.7.0_09"
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

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