From 4ea5b30610b59f452b6e572a271fcfbbfe412cf1 Mon Sep 17 00:00:00 2001
From: Staffan Larsen <sla@openjdk.org>
Date: Mon, 25 Jun 2012 14:34:35 +0200
Subject: [PATCH] 7178846: IterateThroughHeap: heap_iteration_callback passes a
 negative size

Missing cast caused integer overflow

Reviewed-by: rbackman, dholmes
---
 hotspot/src/share/vm/prims/jvmtiTagMap.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hotspot/src/share/vm/prims/jvmtiTagMap.cpp b/hotspot/src/share/vm/prims/jvmtiTagMap.cpp
index a425430bf61..3b58f0f087e 100644
--- a/hotspot/src/share/vm/prims/jvmtiTagMap.cpp
+++ b/hotspot/src/share/vm/prims/jvmtiTagMap.cpp
@@ -585,7 +585,7 @@ class CallbackWrapper : public StackObj {
     _o = klassOop_if_java_lang_Class(o);
 
     // object size
-    _obj_size = _o->size() * wordSize;
+    _obj_size = (jlong)_o->size() * wordSize;
 
     // record the context
     _tag_map = tag_map;