There is a chance for an async exception to be delivered on entry from native to
vm due to a safepoint. This violates the JNI spec.
BugTraq+ Release Management Values
COMMIT TO FIX:
Integrated fix into Tiger Update 1 Build 03
Async exceptions can be installed on the entry from native to vm. This
can cause JNI functions to be called with a pending exception. The fix
fixes all such places to not install async exceptions as pending