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Home » Modeling » TMF (Xtext) » ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler
ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler [message #758547] Wed, 23 November 2011 16:05 Go to next message
John J. Camilleri is currently offline John J. CamilleriFriend
Messages: 33
Registered: November 2011
Location: Göteborg
Member
I was developing my Xtext plugin with version 2.0.0
Today I installed a "packaged" version of Eclipse with Xtext 2.1.0 from it Itemis website. I opened up my original workspace, and now when I run my project as an Eclipse Application I get the following error in the development console:

!ENTRY org.eclipse.ui 4 0 2011-11-23 16:50:35.263
!MESSAGE The proxied handler for 'org.grammaticalframework.eclipse.ui.GFExecutableExtensionFactory:org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler' could not be loaded
!STACK 1
org.eclipse.core.runtime.CoreException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler ExtensionFactory: org.grammaticalframework.eclipse.ui.GFExecutableExtensionFactory
	at org.eclipse.xtext.ui.guice.AbstractGuiceAwareExecutableExtensionFactory.create(AbstractGuiceAwareExecutableExtensionFactory.java:57)
	at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:262)
	at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
	at org.eclipse.ui.internal.handlers.HandlerProxy.loadHandler(HandlerProxy.java:350)
	at org.eclipse.ui.internal.handlers.HandlerProxy.isEnabled(HandlerProxy.java:319)
	at org.eclipse.core.commands.Command.isEnabled(Command.java:833)
	at org.eclipse.core.commands.Command.setHandler(Command.java:996)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.updateCommand(HandlerAuthority.java:459)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.processChangedCommands(HandlerAuthority.java:638)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.access$1(HandlerAuthority.java:610)
	at org.eclipse.ui.internal.handlers.HandlerAuthority$1.propertyChange(HandlerAuthority.java:175)
	at org.eclipse.ui.internal.services.EvaluationAuthority$1.run(EvaluationAuthority.java:252)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.services.EvaluationAuthority.fireServiceChange(EvaluationAuthority.java:246)
	at org.eclipse.ui.internal.services.EvaluationAuthority.endSourceChange(EvaluationAuthority.java:197)
	at org.eclipse.ui.internal.services.EvaluationAuthority.sourceChanged(EvaluationAuthority.java:135)
	at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:311)
	at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:290)
	at org.eclipse.ui.AbstractSourceProvider.fireSourceChanged(AbstractSourceProvider.java:99)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:401)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:300)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.handleCheck(WorkbenchSourceProvider.java:286)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkOtherSources(WorkbenchSourceProvider.java:855)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider$6.handleEvent(WorkbenchSourceProvider.java:839)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1531)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1263)
	at org.eclipse.swt.widgets.Shell.filterProc(Shell.java:731)
	at org.eclipse.swt.widgets.Display.filterProc(Display.java:1543)
	at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2276)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3207)
	at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
	at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1595)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
	at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:345)
	at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1207)
	at org.eclipse.xtext.ui.guice.AbstractGuiceAwareExecutableExtensionFactory.create(AbstractGuiceAwareExecutableExtensionFactory.java:48)
	... 60 more
!SUBENTRY 1 org.grammaticalframework.eclipse.ui 4 0 2011-11-23 16:50:35.264
!MESSAGE org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler ExtensionFactory: org.grammaticalframework.eclipse.ui.GFExecutableExtensionFactory
!STACK 0
java.lang.ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
	at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:345)
	at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1207)
	at org.eclipse.xtext.ui.guice.AbstractGuiceAwareExecutableExtensionFactory.create(AbstractGuiceAwareExecutableExtensionFactory.java:48)
	at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:262)
	at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
	at org.eclipse.ui.internal.handlers.HandlerProxy.loadHandler(HandlerProxy.java:350)
	at org.eclipse.ui.internal.handlers.HandlerProxy.isEnabled(HandlerProxy.java:319)
	at org.eclipse.core.commands.Command.isEnabled(Command.java:833)
	at org.eclipse.core.commands.Command.setHandler(Command.java:996)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.updateCommand(HandlerAuthority.java:459)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.processChangedCommands(HandlerAuthority.java:638)
	at org.eclipse.ui.internal.handlers.HandlerAuthority.access$1(HandlerAuthority.java:610)
	at org.eclipse.ui.internal.handlers.HandlerAuthority$1.propertyChange(HandlerAuthority.java:175)
	at org.eclipse.ui.internal.services.EvaluationAuthority$1.run(EvaluationAuthority.java:252)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.services.EvaluationAuthority.fireServiceChange(EvaluationAuthority.java:246)
	at org.eclipse.ui.internal.services.EvaluationAuthority.endSourceChange(EvaluationAuthority.java:197)
	at org.eclipse.ui.internal.services.EvaluationAuthority.sourceChanged(EvaluationAuthority.java:135)
	at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:311)
	at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:290)
	at org.eclipse.ui.AbstractSourceProvider.fireSourceChanged(AbstractSourceProvider.java:99)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:401)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:300)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.handleCheck(WorkbenchSourceProvider.java:286)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkOtherSources(WorkbenchSourceProvider.java:855)
	at org.eclipse.ui.internal.services.WorkbenchSourceProvider$6.handleEvent(WorkbenchSourceProvider.java:839)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1531)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1263)
	at org.eclipse.swt.widgets.Shell.filterProc(Shell.java:731)
	at org.eclipse.swt.widgets.Display.filterProc(Display.java:1543)
	at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2276)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3207)
	at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
	at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1595)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

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Re: ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler [message #758559 is a reply to message #758547] Wed, 23 November 2011 16:30 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 14665
Registered: July 2009
Senior Member
HI,

this has change with Xtext 2.1. regenerate and compare plugin.xml and plugin.xml_gen to see what to do

<!-- Rename Refactoring -->
	<extension point="org.eclipse.ui.handlers">
		<handler 
			class="org.xtext.example.mydsl.ui.MyDslExecutableExtensionFactory:org.eclipse.xtext.ui.refactoring.ui.IRenameElementHandler"
			commandId="org.eclipse.xtext.ui.refactoring.RenameElement">
			<activeWhen>
				<reference
					definitionId="org.xtext.example.mydsl.MyDsl.Editor.opened">
				</reference>
			</activeWhen>
		</handler>
	</extension>


~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: ClassNotFoundException: org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler [message #758671 is a reply to message #758559] Thu, 24 November 2011 07:58 Go to previous message
John J. Camilleri is currently offline John J. CamilleriFriend
Messages: 33
Registered: November 2011
Location: Göteborg
Member
Thanks for your reply Christian!
Yes, in fact the only thing I had to change in my UI's plugin.xml was that

org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler


should now be changed to

org.eclipse.xtext.ui.refactoring.ui.IRenameElementHandler


Perfect!

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