src/share/classes/java/awt/TextComponent.java

@@ -233,13 +233,18 @@
      *                  if this parameter is <code>null</code> then
      *                  the text is set to the empty string ""
      * @see         java.awt.TextComponent#getText
      */
     public synchronized void setText(String t) {
+        boolean skipTextEvent = (text == null || text.isEmpty())
+                && (t == null || t.isEmpty());
         text = (t != null) ? t : "";
         TextComponentPeer peer = (TextComponentPeer)this.peer;
-        if (peer != null) {
+        // Please note that we do not want to post an event
+        // if TextArea.setText() or TextField.setText() replaces an empty text
+        // by an empty text, that is, if component's text remains unchanged.
+        if (peer != null && !skipTextEvent) {
             peer.setText(text);
         }
     }
 
     /**