Does weblogic mention any preferences ? It would make sense to use the 64bit JDK. That can take advantage of the underlying architecture. I am not aware of a serious bug that would prevent you from doing this. Write to BEA (oracle ) and ask them.
sumit mathur wrote:BEA/Oracle mention that they recommend 64 bit JDK for a 64 bit processor. When asked why, the reply was that 32 bit JDK would cause crashes, & that 64 bit would give better performance.
Has anyone got/point us to any numbers/theory to validate their claim?
If that is their recommendation better follow it. Surely you do not want crashes in production