Class Wizard does not work w/ 4.3pre15

Hello,
I installed the ClassWizard 0.51 plugin on jEdit 1.43pre15. After installation I restarted jEdit (the plugin requires restart). When I run it, it writes:

java.lang.NoSuchMethodError: org.gjt.sp.jedit.EditPlugin.getJAR()Lorg/gjt/sp/jedit/EditPlugin$JAR;
at classwizard.ClassWizardDialog.extractLicenses(ClassWizardDialog.java:266)
at classwizard.ClassWizardDialog.<init>(ClassWizardDialog.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.gjt.sp.jedit.bsh.Reflect.constructObject(Reflect.java:620)
at org.gjt.sp.jedit.bsh.BSHAllocationExpression.constructObject(BSHAllocationExpression.java:123)
at org.gjt.sp.jedit.bsh.BSHAllocationExpression.objectAllocation(BSHAllocationExpression.java:114)
at org.gjt.sp.jedit.bsh.BSHAllocationExpression.eval(BSHAllocationExpression.java:62)
at org.gjt.sp.jedit.bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
at org.gjt.sp.jedit.bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
at org.gjt.sp.jedit.bsh.BSHBlock.evalBlock(BSHBlock.java:130)
at org.gjt.sp.jedit.bsh.BSHBlock.eval(BSHBlock.java:80)
at org.gjt.sp.jedit.bsh.BshMethod.invokeImpl(BshMethod.java:362)
at org.gjt.sp.jedit.bsh.BshMethod.invoke(BshMethod.java:258)
at org.gjt.sp.jedit.bsh.BshMethod.invoke(BshMethod.java:186)
at org.gjt.sp.jedit.BeanShellFacade.runCachedBlock(BeanShellFacade.java:222)
at org.gjt.sp.jedit.BeanShell.runCachedBlock(BeanShell.java:441)
at org.gjt.sp.jedit.BeanShellAction.invoke(BeanShellAction.java:76)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:352)
at org.gjt.sp.jedit.jEdit$4.invokeAction(jEdit.java:3067)
at org.gjt.sp.jedit.jEdit$4.invokeAction(jEdit.java:3051)
at org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:220)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)