8267926: AsyncLogGtest.java fails on assert with: decorator was not p…

…art of the decorator set specified at creation.

Reviewed-by: dholmes, phh

src/hotspot/share/logging/logDecorations.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -43,7 +43,7 @@ class LogDecorations {
   LogLevelType _level;            // for "level" (needs to be nonconst)
   const LogTagSet& _tagset;       // for "tags"
   // In debug mode we keep the decorators around for sanity checking when printing
-  DEBUG_ONLY(const LogDecorators& _decorators;)
+  DEBUG_ONLY(const LogDecorators _decorators;)
 
   static const char* volatile _host_name;
   static const char* host_name();

test/hotspot/jtreg/ProblemList.txt

@@ -88,7 +88,6 @@ gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java 8241293 macosx-x64
 
 # :hotspot_runtime
 
-gtest/AsyncLogGtest.java 8267926 generic-all
 runtime/cds/appcds/jigsaw/modulepath/ModulePathAndCP_JFR.java 8253437 windows-x64
 runtime/cds/DeterministicDump.java 8253495 generic-all
 runtime/jni/terminatedThread/TestTerminatedThread.java 8219652 aix-ppc64