modules/web/src/main/java/com/sun/webkit/Disposer.java

rev 9728 : 8139317: [Mac] SecurityException when constructing WebView from JFXPanel application
Reviewed-by:

*** 30,39 ****
--- 30,40 ----
  
  package com.sun.webkit;
  
  import java.lang.ref.ReferenceQueue;
  import java.lang.ref.WeakReference;
+ import java.security.PrivilegedAction;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.Set;
  import java.util.concurrent.LinkedBlockingQueue;
*** 56,69 ****
      private static final Disposer disposerInstance = new Disposer();
      private static final Set<WeakDisposerRecord> records =
              new HashSet<WeakDisposerRecord>();
  
      static {
!         Thread t = new Thread(disposerInstance, "Disposer");
          t.setDaemon(true);
          t.setPriority(Thread.MAX_PRIORITY);
          t.start();
      }
  
      /**
       * Registers the object and the native data for later disposal.
       * @param target Object to be registered
--- 57,83 ----
      private static final Disposer disposerInstance = new Disposer();
      private static final Set<WeakDisposerRecord> records =
              new HashSet<WeakDisposerRecord>();
  
      static {
!         java.security.AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
!             /*
!              * The thread must be a member of a thread group
!              * which will not get GCed before VM exit.
!              * Make its parent the top-level thread group.
!              */
!             ThreadGroup tg = Thread.currentThread().getThreadGroup();
!             for (ThreadGroup tgn = tg;
!                     tgn != null;
!                     tg = tgn, tgn = tg.getParent());
! 
!             Thread t = new Thread(tg, disposerInstance, "Disposer");
              t.setDaemon(true);
              t.setPriority(Thread.MAX_PRIORITY);
              t.start();
+             return null;
+         });
      }
  
      /**
       * Registers the object and the native data for later disposal.
       * @param target Object to be registered