diff -r ef0a3bbff58c -r 2d86b9b84aa5 hotspot/src/share/vm/runtime/sharedRuntime.cpp --- a/hotspot/src/share/vm/runtime/sharedRuntime.cpp Fri Oct 31 10:34:20 2008 -0700 +++ b/hotspot/src/share/vm/runtime/sharedRuntime.cpp Thu Dec 04 17:29:56 2008 -0800 @@ -556,7 +556,10 @@ // the caller was at a call site, it's safe to destroy all // caller-saved registers, as these entry points do. VtableStub* vt_stub = VtableStubs::stub_containing(pc); - guarantee(vt_stub != NULL, "unable to find SEGVing vtable stub"); + + // If vt_stub is NULL, then return NULL to signal handler to report the SEGV error. + if (vt_stub == NULL) return NULL; + if (vt_stub->is_abstract_method_error(pc)) { assert(!vt_stub->is_vtable_stub(), "should never see AbstractMethodErrors from vtable-type VtableStubs"); return StubRoutines::throw_AbstractMethodError_entry(); @@ -565,7 +568,9 @@ } } else { CodeBlob* cb = CodeCache::find_blob(pc); - guarantee(cb != NULL, "exception happened outside interpreter, nmethods and vtable stubs (1)"); + + // If code blob is NULL, then return NULL to signal handler to report the SEGV error. + if (cb == NULL) return NULL; // Exception happened in CodeCache. Must be either: // 1. Inline-cache check in C2I handler blob, @@ -574,7 +579,7 @@ if (!cb->is_nmethod()) { guarantee(cb->is_adapter_blob(), - "exception happened outside interpreter, nmethods and vtable stubs (2)"); + "exception happened outside interpreter, nmethods and vtable stubs (1)"); // There is no handler here, so we will simply unwind. return StubRoutines::throw_NullPointerException_at_call_entry(); }