From facc89d6a5776a26193c9321111c8489e4af525f Mon Sep 17 00:00:00 2001
Subject: 8263557: Possible NULL dereference in Arena::destruct_contents()

---
 hotspot/src/share/vm/memory/allocation.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hotspot/src/share/vm/memory/allocation.cpp b/hotspot/src/share/vm/memory/allocation.cpp
index 3cd30a686..abbcc6c49 100644
--- a/hotspot/src/share/vm/memory/allocation.cpp
+++ b/hotspot/src/share/vm/memory/allocation.cpp
@@ -521,7 +521,9 @@ void Arena::destruct_contents() {
   // reset size before chop to avoid a rare racing condition
   // that can have total arena memory exceed total chunk memory
   set_size_in_bytes(0);
-  _first->chop();
+  if (_first != NULL) {
+    _first->chop();
+  }
   reset();
 }
 
-- 
2.22.0