Ubuntu and Java

Biggest pain in the ass when I changed my OS to Ubuntu were errors caused by mix up of SUN and Open Java Versions available.

Set Environment Variable

To save some trouble set the $JAVA_HOME variable in .bashrc etc.

 export $JAVA_HOME=/your/java/home/path  (e.g., /usr/lib/jvm/java-6-sun)
export PATH=$PATH:$JAVA_HOME/bin

Set Java Configuration

If you have to have two versions or as in my case Open Java is re-installing through means of magic, select the right version by

 sudo update-alternatives --config java

So far so good…

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