If, after installing Java for OS X 2012-006 and Java 7, you want to disable Java 7 and re-enable the Apple-provided Java SE 6 plug-in, follow these steps.

Note: You must be logged in as an adminstrator.

Note: If prompted for your administrator password after a command, enter it and then press the Return or Enter key.

1. Open Terminal, located in the Utilities folder.
2. Enter this command, then press the Return or Enter key:

   sudo mkdir -p /Library/Internet\ Plug-Ins/disabled

   
    
3. Enter this command, then press the Return or Enter key:

   sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled

   
    
4. Enter this command, then press the Return or Enter key:

   sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin

   
    
5. To re-enable Java SE 6 Web Start, enter this command, then press the Return or Enter key:

   sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws

Additional Information

The following steps will undo the above commands and restore Java 7.

To disable Java SE 6 Web Start opening

Enter this command, then press the Return or Enter key:

sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javaws /usr/bin/javaws

 

When prompted, enter your administrator password, then press the Return or Enter key.
 

To re-enable the Java 7 applet plug-in

Download and re-install the Oracle Java 7 JRE from this website: http://www.oracle.com/technetwork/java/javase/downloads/jre7-downloads-1637588.html.

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