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6880052: SIGSEGV in GraphKit::null_check_common()

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Check that a klass is not NULL before the is_loaded() call.

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2009-09-08 16:56:31 -07:00
parent d486b5f5fd
commit f0f6f93143
1 changed files with 1 additions and 1 deletions
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2
hotspot/src/share/vm/opto/graphKit.cpp
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@ -1126,7 +1126,7 @@ Node* GraphKit::null_check_common(Node* value, BasicType type,
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