Remove the "system" JVM installed and maintained by Software Update

 sudo rm -rf /System/Library/Java/JavaVirtualMachines/1.6.0.jdk

Remove any Java Developer Previews

 sudo rm -rf /Library/Java/JavaVirtualMachines/1.6.0*.jdk

Do NOT remove any content in the JavaVM.framework (Note.: It under /System/Library/Frameworks/JavaVM.framework )

'see original post http://superuser.com/questions/564687/how-do-i-uninstall-java6-from-mac-os-x

Small tutorial from community member that shows how to keep old Java 1.6

1. Uninstall Apple Java (Note: You will need the admin password)

In terminal, run:
sudo rm -rf /System/Library/Java/JavaVirtualMachines/1.6.0.jdk
sudo rm -rf /Library/Java/JavaVirtualMachines/1.6.0*.jdk

This will remove the Apple Java installation files.

2. Reinstall JDownloader 2

JDownloader will automatically download and install a compatible version of Java for your system.
(Note: The Uninstaller will not work, and throw an error after Java uninstallation)

3. Run JDownloader 2

4. Reinstall Apple Java 1.6

You can safely reinstall Apple Java after installing and running JDownloader.

'see original post https://board.jdownloader.org/showpost.php?p=368967&postcount=21