Linux JRE and /lib/ext directory

I know this topic is fairly well discussed, but after reading many, many forum posts I have not found an answer. I've tried JRE 1.3.1_03 as well as a completely different JRE, from Blackdown.
If I run java from /jre/bin, on Linux, how does java know where the /lib/ext directory is?
Do I have to have an environment setup, such as java_home or should it find it by relative paths?
What environment variables must be setup for the JRE to operate correctly on Linux(in this case Redhat 7.2)
I have an application and the vendor just says to put these jar's in ext and the JRE will find them. Unfortunately, the JRE does not find them. I just want to make sure my environment is setup correctly.
Thanks,
James

I'll assume the wording of your response was not meant to be arrogant. lib/etx IS relative and the jars are NOT being found. I'm trying to figure out why.
It looks as though java's bin directory is in your path. Did you have to set that up or did the install set it up for you?
Again, what environment variables on Linux should be setup for the JRE to work properly? Any?
If I run something from the jre/bin directory, like: ./java TestClass, should the runtime be able to find jar's in the jre/lib/ext directory just by relative paths?
Thanks,
James

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Edited by: suyuchieh on Jul 5, 2008 9:11 PM
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