6828273: javax/swing/system/6799345/TestShutdown.java test fails with RuntimeException.

Reviewed-by: anthony, dcherepanov

src/solaris/classes/sun/awt/X11/XToolkit.java

@@ -377,22 +377,22 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
             init();
             XWM.init();
             SunToolkit.setDataTransfererClassName(DATA_TRANSFERER_CLASS_NAME);
-            toolkitThread = new Thread(this, "AWT-XAWT");
-            toolkitThread.setPriority(Thread.NORM_PRIORITY + 1);
-            toolkitThread.setDaemon(true);
-            ThreadGroup mainTG = (ThreadGroup)AccessController.doPrivileged(
-                                                                            new PrivilegedAction() {
-                                                                                    public Object run() {
-                                                                                        ThreadGroup currentTG =
-                                                                                            Thread.currentThread().getThreadGroup();
+
+            PrivilegedAction<Thread> action = new PrivilegedAction() {
+                public Thread run() {
+                    ThreadGroup currentTG = Thread.currentThread().getThreadGroup();
                     ThreadGroup parentTG = currentTG.getParent();
                     while (parentTG != null) {
                         currentTG = parentTG;
                         parentTG = currentTG.getParent();
                     }
-                                                                                        return currentTG;
+                    Thread thread = new Thread(currentTG, XToolkit.this, "AWT-XAWT");
+                    thread.setPriority(Thread.NORM_PRIORITY + 1);
+                    thread.setDaemon(true);
+                    return thread;
                 }
-                                                                                });
+            };
+            toolkitThread = AccessController.doPrivileged(action);
             toolkitThread.start();
         }
     }

test/javax/swing/system/6799345/TestShutdown.java

@@ -59,7 +59,7 @@ public class TestShutdown
 
         while (!appcontextInitDone)
         {
-            Thread.sleep(500);
+            Thread.sleep(1000);
         }
 
         targetAppContext.dispose();
@@ -146,7 +146,6 @@ public class TestShutdown
                     startGUI();
                 }
             });
-            stk.realSync();
 
             // start multiple SwingWorkers
             while (!Thread.interrupted())