# HG changeset patch
# User kvn
# Date 1524590814 25200
# Node ID 9e64b13a7fcbf54f1bfc9e39cc56dabc55450a04
# Parent  26ebfe8ce852774971982cd01437148a2c26cc50
8202075: Crash when running compiler/codecache/OverflowCodeCacheTest.java
Summary: add missing null check in WhiteBox::allocate_code_blob()
Reviewed-by: thartmann

diff -r 26ebfe8ce852 -r 9e64b13a7fcb src/hotspot/share/prims/whitebox.cpp
--- a/src/hotspot/share/prims/whitebox.cpp	Tue Apr 24 09:04:57 2018 -0700
+++ b/src/hotspot/share/prims/whitebox.cpp	Tue Apr 24 10:26:54 2018 -0700
@@ -1359,7 +1359,9 @@
   {
     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
     blob = (BufferBlob*) CodeCache::allocate(full_size, blob_type);
-    ::new (blob) BufferBlob("WB::DummyBlob", full_size);
+    if (blob != NULL) {
+      ::new (blob) BufferBlob("WB::DummyBlob", full_size);
+    }
   }
   // Track memory usage statistic after releasing CodeCache_lock
   MemoryService::track_code_cache_memory_usage();