*** old/src/hotspot/share/prims/jvmtiImpl.cpp	Thu Mar 28 11:23:07 2019
--- new/src/hotspot/share/prims/jvmtiImpl.cpp	Thu Mar 28 11:23:07 2019

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2003, 2019, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 79,88 ****
--- 79,89 ----
      dthread->call_start_function();
  }
  
  void
  JvmtiAgentThread::call_start_function() {
+     HandleMark hm(this);
      ThreadToNativeFromVM transition(this);
      _start_fn(_env->jvmti_external(), jni_environment(), (void*)_start_arg);
  }