diff --git a/java/com/google/scrollview/events/SVEventHandler.java b/java/com/google/scrollview/events/SVEventHandler.java
index 09913141..26a92bdb 100644
--- a/java/com/google/scrollview/events/SVEventHandler.java
+++ b/java/com/google/scrollview/events/SVEventHandler.java
@@ -28,6 +28,7 @@ import java.awt.event.KeyEvent;
 import java.awt.event.KeyListener;
 import java.awt.event.WindowEvent;
 import java.awt.event.WindowListener;
+import java.awt.Window;
 
 import javax.swing.Timer;
 
@@ -262,7 +263,10 @@ public class SVEventHandler extends PBasicInputEventHandler implements
   public void windowClosing(WindowEvent e) {
     processEvent(new SVEvent(SVEventType.SVET_DESTROY, svWindow, lastXMove,
         lastYMove, 0, 0, null));
-    e.getWindow().dispose();
+    Window w = e.getWindow();
+    if (w != null) {
+      w.dispose();
+    }
     SVWindow.nrWindows--;
     if (SVWindow.nrWindows == 0) {
       processEvent(new SVEvent(SVEventType.SVET_EXIT, svWindow, lastXMove,