--- old/src/java.desktop/share/classes/sun/awt/SunToolkit.java	2015-04-22 22:06:22.912034600 +0300
+++ new/src/java.desktop/share/classes/sun/awt/SunToolkit.java	2015-04-22 22:06:22.471478700 +0300
@@ -843,12 +843,18 @@
     }
 
     protected static boolean imageExists(String filename) {
+        if (filename == null) {
+            return false;
+        }
         checkPermissions(filename);
         return filename != null && new File(filename).exists();
     }
 
     @SuppressWarnings("try")
     protected static boolean imageExists(URL url) {
+        if (url == null) {
+            return false;
+        }
         checkPermissions(url);
         if (url != null) {
             try (InputStream is = url.openStream()) {