(304/304) 1792 - ClassCastException in ProjectViewer caused by Lucene 4.0

JEdit: 5.1.0
Project plugin: ProjectViewer 3.5.3

This is most probably an interaction with another plugin. With the ProjectViewer docked on the left, I just click to select the view and I get:

java.lang.ClassCastException: gatchan.jedit.lucene.IndexProjectAction cannot be cast to projectviewer.action.Action
at projectviewer.vpt.VPTContextMenu.updateExtensions(VPTContextMenu.java:196)
at projectviewer.config.ExtensionManager.register(ExtensionManager.java:98)
at projectviewer.vpt.VPTContextMenu.<init>(VPTContextMenu.java:103)
at projectviewer.vpt.ProjectTreePanel.<init>(ProjectTreePanel.java:105)
at projectviewer.ProjectViewer.buildGUI(ProjectViewer.java:642)
at projectviewer.ProjectViewer.<init>(ProjectViewer.java:602)
at projectviewer.ProjectViewer.createDockable(ProjectViewer.java:863)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.gjt.sp.jedit.bsh.Reflect.invokeMethod(Reflect.java:134)
at org.gjt.sp.jedit.bsh.Reflect.invokeStaticMethod(Reflect.java:98)
at org.gjt.sp.jedit.bsh.Name.invokeMethod(Name.java:871)
at org.gjt.sp.jedit.bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:75)
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.Interpreter.eval(Interpreter.java:644)
at org.gjt.sp.jedit.bsh.Interpreter.eval(Interpreter.java:738)
at org.gjt.sp.jedit.bsh.Interpreter.eval(Interpreter.java:727)
at org.gjt.sp.jedit.BeanShellFacade._eval(BeanShellFacade.java:148)
at org.gjt.sp.jedit.BeanShellFacade.eval(BeanShellFacade.java:113)
at org.gjt.sp.jedit.BeanShell.eval(BeanShell.java:377)
at org.gjt.sp.jedit.gui.DockableWindowFactory$Window.createDockableWindow(DockableWindowFactory.java:482)
at org.gjt.sp.jedit.gui.DockableWindowManagerImpl.showDockableWindow(DockableWindowManagerImpl.java:355)
at org.gjt.sp.jedit.gui.PanelWindowContainer$ActionHandler.actionPerformed(PanelWindowContainer.java:458)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:308)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Submitted	jslaroch - 2014-07-10 21:58:58.368000	Assigned
Priority	5	Labels	Windows Specific
Status	open	Group
Resolution	None

Comments

2014-07-10 22:36:18.436000 ezust	That happens sometimes after plugin updates. Can you reproduce this after restarting jEdit? What about cleaning our %APPDATA%\jEdit\jars-cache folder?
2014-07-11 14:53:13.632000 jslaroch	Yes I did try restarting. I tried cleaning up the jars-cache and it did not change anything either. I never had this kind of problem before so I do not have a backup of my jedit setup. With a backup I would have been able to see exactly what the last update did but this will not be possible. I remember that something like 3 plugins were updated but not the details. I guess I could use the PluginManager and try to find the details.
2014-07-11 14:56:26.392000 ezust	Please reproduce and attach to this ticket an activity log that shows what is happening .
2014-07-11 15:27:37.416000 jslaroch	Additional information. From the logs here are the latest updates : 12:24:05 PM [AWT-EventQueue-0] [debug] EditBus: PluginUpdate[what=ACTIVATED,exit=false,version=5.0,source=C:\Apps\jEdit\jars\QuickNotepad.jar,class=QuickNotepadPlugin] 12:24:05 PM [AWT-EventQueue-0] [debug] EditBus: PluginUpdate[what=ACTIVATED,exit=false,version=3.1.5,source=C:\Apps\jEdit\jars\JavaSideKick.jar,class=sidekick.java.JavaSideKickPlugin] 12:24:05 PM [AWT-EventQueue-0] [debug] EditBus: PluginUpdate[what=ACTIVATED,exit=false,version=1.0,source=C:\Apps\jEdit\jars\EclipseIcons.jar,class=eclipseicons.EclipseIconsPlugin] 2:58:59 PM [AWT-EventQueue-0] [debug] EditBus: PluginUpdate[what=ACTIVATED,exit=false,version=2.8.5,source=C:\Users\CAJELAR\AppData\Roaming\jEdit\jars\XML.jar,class=xml.XmlPlugin]
2014-07-11 15:37:29.651000 ezust	Click "add attachments" (next to post) and add your activity.log (from %APPDATA%\jEdit) as a regular file attachment please.
2014-07-11 15:38:54.349000 ezust	- labels: --> Windows Specific - summary: ClassCastException in ProjectViewer --> ClassCastException in ProjectViewer caused by Lucene 4.0 - Group: -->
2014-07-11 15:38:54.726000 ezust	I think this is caused by Lucene 4.0.
2014-07-11 15:52:20.903000 ezust	try plugin manager - find orphan and see if there are old jars lying around.
2014-07-11 16:49:50.390000 jslaroch	* New development *. I had tried cleaning the jars-cache as you suggested and stopping restarting jedit with no results. However, while preparing to give you an activity log I decided to really start clean so instead of just doing "File -> Exit" I also used the TaskManager to kill the JEdit "server" (javaw.exe) that keeps running in the background. That apparently did the trick and the ProjectViewer seems to be working again. Restarting my system would probably have had a similar effect. Bottom line: I can't get the error anymore and everything seems to be working fine. I guess we can now close this issue. Sorry about this and a thank you very much for your help.