File swingx-0.9.4-toArray.patch of Package swingx

--- swingx-0.9.4-src/src/java/org/jdesktop/swingx/error/ErrorSupport.java	2008-09-07 06:10:24.000000000 +0200
+++ swingx-0.9.4-src/src/java/org/jdesktop/swingx/error/ErrorSupport.java	2018-10-03 07:20:59.784392455 +0200
@@ -68,7 +68,7 @@
      * added.
      */
     public ErrorListener[] getErrorListeners() {
-        return listeners.toArray(null);
+        return listeners.toArray(new ErrorListener[0]);
     }
 
     /**