Well, I just finished watching an episode of House, so let's try a differential diagnosis here. You know that it works with the Thin driver from both machines, but it's expiring in the JBoss code. You don't say for sure ("client" isn't very definite) but it would appear that you have a JBoss instance on CompB and on CompC, and your code runs happily when it runs in the JBoss instance on CompB but core dumps from CompC.
Just give up on the native OCI driver - it's a never-ending headache.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.