NULLPOINTEREXCEPTION IN SETVISIBLE() IF TOOLKIT HASN'T BEEN CREATED

Name: eyC74480 Date: 03/03/98


This bug report came from Oracle Corp. JavaSoft Licensee.
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john.stampfl@eng 1999-05-11
received testcase from Oracle


/*This is JavaSoft licensee Oracle Corp.
If setVisible() is called on a component that has a ComponentListener
attached, before anyone has called Toolkit.getDefaultToolkit()
(e.g., before any peers have been created), a NullPointerException
results.

java version "1.1.7B"

% java ToolkitTest
java.lang.NullPointerException
at java.awt.Toolkit.getEventQueue(Toolkit.java:662)
at java.awt.Component.hide(Component.java:536)
at ToolkitTest.main(ToolkitTest.java:17)

The following code reproduces the problem:
*/
import java.awt.*;
import java.awt.event.*;
public class ToolkitTest extends ComponentAdapter
{
  static public void main(String[] args)
  {
    Button b = new Button("Blah");
    b.addComponentListener(new ToolkitTest());
    b.hide();
  }
}

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