From 3b55e6e2c5d3198efbbdbede3d9fa35852834836 Mon Sep 17 00:00:00 2001
From: morris <unknown>
Date: Sat, 16 Mar 2013 07:39:14 -0700
Subject: [PATCH] 8009166: [parfait] Null pointer deference in
 hotspot/src/share/vm/opto/type.cpp Summary: add guarantee() to
 as_instance_type() Reviewed-by: kvn, twisti

---
 src/share/vm/opto/type.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/share/vm/opto/type.cpp b/src/share/vm/opto/type.cpp
index 3928c23af..68f681342 100644
--- a/src/share/vm/opto/type.cpp
+++ b/src/share/vm/opto/type.cpp
@@ -4193,6 +4193,7 @@ const TypeOopPtr* TypeKlassPtr::as_instance_type() const {
   bool    xk = klass_is_exact();
   //return TypeInstPtr::make(TypePtr::NotNull, k, xk, NULL, 0);
   const TypeOopPtr* toop = TypeOopPtr::make_from_klass_raw(k);
+  guarantee(toop != NULL, "need type for given klass");
   toop = toop->cast_to_ptr_type(TypePtr::NotNull)->is_oopptr();
   return toop->cast_to_exactness(xk)->is_oopptr();
 }
-- 
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