Matisse Palette widget (ClassNotFoundException)

I’ve installed Matisse on MyEclipse 5.0.

Yesterday, I tried out using widgets and dragging them onto an applet form. Worked fine.
Stubbed out some events. Still worked fine (although I had to restart the workbench for the palette widget to be updated with the newest version of said widget).

Today, I took the same widgets, added a Log4j Log object, and put log.debug calls in the event methods, e.g.:

package com.foo.ui;

import org.apache.commons.logging.*;

public class EnvironmentSettings extends javax.swing.JPanel implements java.awt.event.ItemListener {

    private static final long serialVersionUID = 4890948659027798007L;

    private static Log log = LogFactory.getLog(EnvironmentSettings.class);
    
    /** Creates new form EnvironmentSettings */
    public EnvironmentSettings() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jComboBoxAudio.setBackground(new java.awt.Color(255, 255, 255));
        jComboBoxAudio.setFont(new java.awt.Font("Arial", 1, 12));
        jComboBoxAudio.setText("Play Audio");
        jComboBoxAudio.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,
                0, 0, 0));
        jComboBoxAudio.setMargin(new java.awt.Insets(0, 0, 0, 0));
        jComboBoxAudio.addItemListener(this);

        // layout and placement code ... removed for brevity.
    }

    // Code for dispatching events from components to event handlers.

    public void itemStateChanged(java.awt.event.ItemEvent evt) {
        if(evt.getSource() == jComboBoxAudio) {
            EnvironmentSettings.this.jComboBoxAudioItemStateChanged(evt);
        }
    }// </editor-fold>//GEN-END:initComponents

    private void jComboBoxAudioItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_jComboBoxAudioItemStateChanged
        log.debug(evt.getSource() + ":" + evt.getClass());
    }//GEN-LAST:event_jComboBoxAudioItemStateChanged


// Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JCheckBox jComboBoxAudio;

    // End of variables declaration//GEN-END:variables
}

Now, when I try to add this new widget to an applet form, this error comes up. I tried a workbench restart, no dice.

Cannot load component class com.foo.ui.EnvironmentSettings from unknown source.
The class must be compiled and must be on the classpath of the project this form belongs to.

Log4j instances workfine in other non-form classes (it’s in the classpath of the project). And once I remove the references to log4j, everything is fine again.

Is this perhaps a bug? If further info is required please let me know. I’m used to having my logger, but I can do without for now. Just thought this might be of interest for you folks.

Regards.

Here’s the workbench logfile:

!ENTRY org.eclipse.wst.internet.cache 1 0 2006-08-22 11:21:09.187
!MESSAGE wtp.autotest.noninteractive is set. Licenses dialogs will not be displayed.
!SESSION 2006-08-22 11:23:38.296 -----------------------------------------------
eclipse.buildId=M20060629-1905
java.version=1.5.0_07
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments:  -product com.genuitec.myeclipse.product.ide
Command-line arguments:  -os win32 -ws win32 -arch x86 -product com.genuitec.myeclipse.product.ide

!ENTRY com.genuitec.eclipse.dehory 4 4 2006-08-22 11:24:43.890
!MESSAGE com.foo.ui.EnvironmentSettings
!STACK 0
java.lang.ClassNotFoundException: com.foo.ui.EnvironmentSettings
    at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:407)
    at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:352)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
    at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
    at org.netbeans.modules.form.palette.PaletteItem.getComponentClass(PaletteItem.java:139)
    at org.netbeans.modules.form.HandleLayer$NewComponentDrag.init(HandleLayer.java:2520)
    at org.netbeans.modules.form.HandleLayer$NewComponentDrag.<init>(HandleLayer.java:2466)
    at org.netbeans.modules.form.HandleLayer.mouseMoved(HandleLayer.java:1612)
    at java.awt.AWTEventMulticaster.mouseMoved(AWTEventMulticaster.java:271)
    at java.awt.Component.processMouseMotionEvent(Component.java:5533)
    at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3144)
    at java.awt.Component.processEvent(Component.java:5257)
    at java.awt.Container.processEvent(Container.java:1966)
    at java.awt.Component.dispatchEventImpl(Component.java:3955)
    at java.awt.Container.dispatchEventImpl(Container.java:2024)
    at java.awt.Component.dispatchEvent(Component.java:3803)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3905)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
    at java.awt.Container.dispatchEventImpl(Container.java:2010)
    at java.awt.Window.dispatchEventImpl(Window.java:1774)
    at java.awt.Component.dispatchEvent(Component.java:3803)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
    at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)