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6880052: SIGSEGV in GraphKit::null_check_common()
authorkvn
Tue, 08 Sep 2009 16:56:31 -0700
changeset 3802 38c0c1983af4
parent 3801 073b203064b8
child 3803 a7d7c2525f61
6880052: SIGSEGV in GraphKit::null_check_common() Summary: Check that a klass is not NULL before the is_loaded() call. Reviewed-by: never
hotspot/src/share/vm/opto/graphKit.cpp file | annotate | diff | comparison | revisions 
--- a/hotspot/src/share/vm/opto/graphKit.cpp	Tue Sep 08 10:42:50 2009 -0700
+++ b/hotspot/src/share/vm/opto/graphKit.cpp	Tue Sep 08 16:56:31 2009 -0700
@@ -1126,7 +1126,7 @@
       const Type *t = _gvn.type( value );
 
       const TypeOopPtr* tp = t->isa_oopptr();
-      if (tp != NULL && !tp->klass()->is_loaded()
+      if (tp != NULL && tp->klass() != NULL && !tp->klass()->is_loaded()
           // Only for do_null_check, not any of its siblings:
           && !assert_null && null_control == NULL) {
         // Usually, any field access or invocation on an unloaded oop type
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