src/java.base/share/classes/java/lang/Shutdown.java

Updates after review: remove status argument completely from beforeHalt

8041626: Shutdown tracing event

*** 1,7 ****
  /*
!  * Copyright (c) 1999, 2005, 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.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1999, 2018, 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.  Oracle designates this
***************
*** 128,137 ****
--- 128,140 ----
                  }
              }
          }
      }
  
+     /* Notify the VM that it's time to halt. */
+     static native void beforeHalt();
+ 
      /* The halt method is synchronized on the halt lock
       * to avoid corruption of the delete-on-shutdown file list.
       * It invokes the true native halt method.
       */
      static void halt(int status) {
***************
*** 207,216 ****
--- 210,220 ----
          }
          synchronized (Shutdown.class) {
              /* Synchronize on the class object, causing any other thread
               * that attempts to initiate shutdown to stall indefinitely
               */
+             beforeHalt();
              sequence();
              halt(status);
          }
      }