Hey guys. Sorry for the stupid question, but I can't seem to find the answer anywhere.

Every time I try to run a java program, I get the following error:

Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object

Looks like java can't find the built in libraries. I know I have to point the $CLASSPATH variable to something, I just don't know what. I've tried "." (current directory) and a few I thought might work in my jre directory, but nada.

Java Home (this is correct) :

Code:
conor@conor-lt:~/Desktop$ echo $JAVA_HOME
/usr/java/jre1.5.0_02
Can anyone tell me where I should point $CLASSPATH to make java run?

Thanks.