src/java.desktop/share/classes/javax/swing/RepaintManager.java

rev 10525 : 8038277: Improve the bootstrap performance of cacerts keystore (client)
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -988,14 +988,11 @@
      * object's properties.
      *
      * @return a String representation of this object
      */
     public synchronized String toString() {
-        StringBuilder sb = new StringBuilder();
-        if(dirtyComponents != null)
-            sb.append("" + dirtyComponents);
-        return sb.toString();
+                return dirtyComponents != null ? dirtyComponents.toString() : "";
     }
 
 
     /**
      * Return the offscreen buffer that should be used as a double buffer with