# HG changeset patch
# User coleenp
# Date 1292357452 18000
# Node ID e44c68293be8898b0167f497c058beb384b16a8b
# Parent  d226d0eb0ff2a81ad06ee474c6bf8c7f0850f700
7006471: fix for 6988439 crashes when pending list lock is null
Summary: missing null check in owns_pending_list_lock() because this can be called before pending_list_lock is initialized.
Reviewed-by: never, kvn

diff -r d226d0eb0ff2 -r e44c68293be8 hotspot/src/share/vm/oops/instanceRefKlass.cpp
--- a/hotspot/src/share/vm/oops/instanceRefKlass.cpp	Mon Dec 13 14:46:51 2010 -0800
+++ b/hotspot/src/share/vm/oops/instanceRefKlass.cpp	Tue Dec 14 15:10:52 2010 -0500
@@ -458,6 +458,7 @@
 }
 
 bool instanceRefKlass::owns_pending_list_lock(JavaThread* thread) {
+  if (java_lang_ref_Reference::pending_list_lock() == NULL) return false;
   Handle h_lock(thread, java_lang_ref_Reference::pending_list_lock());
   return ObjectSynchronizer::current_thread_holds_lock(thread, h_lock);
 }