--- a/usr/src/java/vpanels/panel/org/opensolaris/os/vp/panel/common/control/Navigator.java	Tue Sep 09 09:59:37 2008 -0400
+++ b/usr/src/java/vpanels/panel/org/opensolaris/os/vp/panel/common/control/Navigator.java	Tue Sep 09 10:07:11 2008 -0400
@@ -40,11 +40,24 @@
     public static final String PATH_SEPARATOR = "/";
     public static final String PARENT_ID = "..";
 
-    // Use a thread pool to autmatically handle uncaught exceptions and queued
-    // requests
-    private static final ThreadPoolExecutor threadPool;
-    static {
-	ThreadFactory factory = new NamedThreadFactory("Navigator-");
+    //
+    // Instance data
+    //
+
+    private Thread dispatchThread;
+
+    // Use a thread pool with a single core thread to autmatically handle
+    // uncaught exceptions and queued requests
+    private ThreadPoolExecutor threadPool;
+    {
+	ThreadFactory factory =
+	    new NamedThreadFactory("Navigator-") {
+		@Override
+		public Thread newThread(Runnable r) {
+		    dispatchThread = super.newThread(r);
+		    return dispatchThread;
+		}
+	    };
 
 	// Unbounded
 	BlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>();
@@ -55,10 +68,6 @@
 	threadPool.allowCoreThreadTimeOut(true);
     }
 
-    //
-    // Instance data
-    //
-
     private StackList<Control> stack = new StackList<Control>();
 
     private List<NavigationListener> listeners =
@@ -438,6 +447,15 @@
     }
 
     /**
+     * Determines whether the current thread is the navigation dispatch thread.
+     * The navigation dispatch thread may change over time, but only one is
+     * alive at a time.
+     */
+    public boolean isDispatchThread() {
+	return Thread.currentThread() == dispatchThread;
+    }
+
+    /**
      * Returns the current {@link Control}.
      */
     public Control peek() {