--- old/jdk/src/solaris/classes/sun/awt/X11GraphicsEnvironment.java	2013-09-26 17:42:32.335760100 +0400
+++ new/jdk/src/solaris/classes/sun/awt/X11GraphicsEnvironment.java	2013-09-26 17:42:31.864733200 +0400
@@ -200,7 +200,12 @@
      * Returns the default screen graphics device.
      */
     public GraphicsDevice getDefaultScreenDevice() {
-        return getScreenDevices()[getDefaultScreenNum()];
+        GraphicsDevice[] screens = getScreenDevices();
+        if (screens.length == 0) {
+            throw new AWTError("no screen devices");
+        }
+        int index = getDefaultScreenNum();
+        return screens[0 < index && index < screens.length ? index : 0];
     }
 
     public boolean isDisplayLocal() {