title: jFrame jumps in middle if the screen after jFrame.setLocation(Point p)
body: <p>Iám facing a litte problem here.</p>
  
  <p>I tried to save the actual position of an jFrame, and restore this position after creating this frame again.</p>
  
  <p>Heres the "save"-procedure:</p>
  
  <pre><code>private void formWindowClosing(java.awt.event.WindowEvent evt) {                                   
      Parent.Throttle_vorhanden = 0;
      root.Hauptfenster.LastPositionThrottlePlate=this.getLocation();
      this.dispose();
  } 
  </code></pre>
  
  <p>And here I try to set the old location again:</p>
  
  <pre><code>public Throttle(Hauptfenster parent, root.rs232.rs232Connection Conn, Integer throttlePosition) {
      super();
      Parent = parent;
      conn = Conn;
      actualThrottlePosition = throttlePosition;
      initComponents();
  
      jScrollBar2.setValue(root.Hauptfenster.MPR);
      this.setTitle("Throttle");
  
      this.setVisible(true);
      if (root.Hauptfenster.LastPositionThrottlePlate!=null) {
          this.setLocation(root.Hauptfenster.LastPositionThrottlePlate); 
      }
  </code></pre>
  
  <p>For a very little bit a secound, I see the Frame on its old position, but then it "jumps" in the middle of the screen... </p>
  
  <p>Can anyone imagine why jFrame behavior like this?
  sorry for my english...</p>