src/share/vm/opto/runtime.cpp

*** 928,941 ****
  
        handler_address =
          force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
  
        if (handler_address == NULL) {
          handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
          assert (handler_address != NULL, "must have compiled handler");
!         // Update the exception cache only when the unwind was not forced.
!         if (!force_unwind) {
            nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
          }
        } else {
          assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
        }
--- 928,947 ----
  
        handler_address =
          force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
  
        if (handler_address == NULL) {
+         oop original_exception = exception();
          handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
          assert (handler_address != NULL, "must have compiled handler");
!         // Update the exception cache only when the unwind was not forced
!         // and there didn't happen another exception during the computation of the 
!         // compiled exception handler. (Notice that the comparison below may wrongly fail
!         // because a GC can happen while the compiled exception handler is computed.
!         // But that should be a very rare case and updating the exception cache only
!         // during the next exception occurence should have no measurable performance impact.
!         if (!force_unwind && original_exception == exception()) {
            nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
          }
        } else {
          assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
        }