!MESSAGE Unhandled event loop exception

[tekcar]

Error switching between code view and design views after changing some simple code.

(Note, I tried to go back to 2.0.1 and the same issue arises.

I have a consistent problem when working with a new Swing window and code in the code view. Note that in the following case, I only am working with menus. Here is the code followed by a capture from the log file. I just entered the action event for the exit menu:

I'm working with Windows XP SP1 and 1.4.2_04 Java SDK.

Thanks so much...

Tom
===================================
/*
* Created on Aug 29, 2004
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package com.briton.pps.view;

import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

/**
* @author Tom Harrington
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class list extends JFrame {

private JMenuBar menuBar;
public static void main(String args[]) {
list frame = new list();
frame.setBounds(100, 100, 500, 350);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}

public list() {
super();
setJMenuBar(menuBar);

menuBar = new JMenuBar();

final JMenu menuFile = new JMenu();
menuBar.add(menuFile);
menuFile.setText("File");

final JMenuItem menuItemExit = new JMenuItem();
menuItemExit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
menuFile.add(menuItemExit);
menuItemExit.setText("Exit");

}
}
===================================
!ENTRY org.eclipse.ui 4 4 Aug 29, 2004 17:03:21.457
!MESSAGE Unhandled event loop exception

!ENTRY org.eclipse.ui 4 0 Aug 29, 2004 17:03:21.473
!MESSAGE No more handles
!STACK 0
org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:2717)
at org.eclipse.swt.SWT.error(SWT.java:2616)
at org.eclipse.swt.SWT.error(SWT.java:2587)
at org.eclipse.swt.graphics.Image.internal_new_GC(Image.java:1723)
at org.eclipse.swt.graphics.GC.<init>(GC.java:120)
at org.eclipse.swt.graphics.GC.<init>(GC.java:87)
at org.eclipse.draw2d.BufferedGraphicsSource.getGraphics(BufferedGraphicsSource.java:56)
at org.eclipse.draw2d.DeferredUpdateManager.getGraphics(DeferredUpdateManager.java:108)
at org.eclipse.draw2d.DeferredUpdateManager.repairDamage(DeferredUpdateManager.java:192)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:134)
at org.eclipse.draw2d.DeferredUpdateManager.performUpdate(DeferredUpdateManager.java:118)
at org.eclipse.draw2d.LightweightSystem.paint(LightweightSystem.java:206)
at org.eclipse.draw2d.LightweightSystem$4.handleEvent(LightweightSystem.java:110)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:820)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:805)
at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:803)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3020)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:3338)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1467)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2429)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:254)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:96)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:335)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.basicRun(Main.java:183)
at org.eclipse.core.launcher.Main.run(Main.java:644)
at org.eclipse.core.launcher.Main.main(Main.java:628)

[Eric Clayberg]

The problem is with the following two lines:

setJMenuBar(menuBar);

menuBar = new JMenuBar();

Reverse their order and the problem will go away. We are investigatiung why those two lines might have been generated in the wrong order.