Community
Participate
Working Groups
We are experiencing a problem invoking the content assist in the code templates editor for a language that derives from Xbase. When entering a template the content assist causes a MalformedURLException when trying to invoke complete_Literal. The language specific Jvm inferrer is invoked. I recall having a similar problem in another context. It was important there to get a resource set through the XtextResourceSetProvider. In CodetemplatesProposalProvider#completeLiteral() the resourceset is taken from the template's resource, and I guess this resource set is not properly configured to know the "java" protocol. 82626 [main] WARN org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider - Error in polymorphic dispatcher : org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: java.net.MalformedURLException: unknown protocol: java java.lang.RuntimeException: org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: java.net.MalformedURLException: unknown protocol: java at org.eclipse.xtext.ui.codetemplates.ui.projectedEditing.TemporaryResourceProvider.useTemporaryResource(TemporaryResourceProvider.java:39) at org.eclipse.xtext.ui.codetemplates.ui.contentassist.CodetemplatesProposalProvider.complete_Literal(CodetemplatesProposalProvider.java:308) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291) at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.invokeMethod(AbstractJavaBasedContentProposalProvider.java:271) at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.completeRuleCall(AbstractJavaBasedContentProposalProvider.java:176) at org.eclipse.xtext.ui.codetemplates.ui.contentassist.AbstractCodetemplatesProposalProvider.completeTemplateBody_Parts(AbstractCodetemplatesProposalProvider.java:45) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291) at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.invokeMethod(AbstractJavaBasedContentProposalProvider.java:271) at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.completeAssignment(AbstractJavaBasedContentProposalProvider.java:185) at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.caseAssignment(AbstractContentProposalProvider.java:66) at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.caseAssignment(AbstractContentProposalProvider.java:1) at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:164) at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:70) at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:58) at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.accept(AbstractContentProposalProvider.java:71) at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider.createProposals(AbstractContentProposalProvider.java:108) at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.createProposals(AbstractJavaBasedContentProposalProvider.java:246) at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:51) at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:1) at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32) at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:78) at org.eclipse.xtext.ui.editor.contentassist.XtextContentAssistProcessor.computeCompletionProposals(XtextContentAssistProcessor.java:69) at org.eclipse.xtext.ui.editor.contentassist.RepeatedContentAssistProcessor.computeCompletionProposals(RepeatedContentAssistProcessor.java:74) at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1830) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:553) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:488) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:482) at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1656) at org.eclipse.jface.text.source.SourceViewer.doOperation(SourceViewer.java:930) at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1451) at org.eclipse.xtext.ui.codetemplates.ui.preferences.TextViewerAction.run(TextViewerAction.java:65) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1262) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1104) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1100) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1509) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4640) at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4528) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2531) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.xtext.ui.codetemplates.ui.preferences.AdvancedTemplatesPreferencePage.editTemplate(AdvancedTemplatesPreferencePage.java:56) at org.eclipse.ui.texteditor.templates.TemplatePreferencePage.add(TemplatePreferencePage.java:1215) at org.eclipse.ui.texteditor.templates.TemplatePreferencePage.access$3(TemplatePreferencePage.java:1209) at org.eclipse.ui.texteditor.templates.TemplatePreferencePage$15.handleEvent(TemplatePreferencePage.java:966) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:215) at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:54) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) 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:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) 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: org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: java.net.MalformedURLException: unknown protocol: java at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397) at org.eclipse.xtext.resource.SynchronizedXtextResourceSet.getResource(SynchronizedXtextResourceSet.java:23) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getEObject(ResourceSetImpl.java:216) at org.eclipse.xtext.common.types.util.TypeReferences.findDeclaredType(TypeReferences.java:182) at org.eclipse.xtext.common.types.util.TypeReferences.getTypeForName(TypeReferences.java:146) at org.eclipse.xtext.xbase.jvmmodel.JvmTypesBuilder.toClass(JvmTypesBuilder.java:174) at org.eclipse.xtext.xbase.jvmmodel.JvmTypesBuilder.toClass(JvmTypesBuilder.java:149) at com.commerzbank.core.poc.dialog.jvmmodel.DialogJvmModelInferrer._infer(DialogJvmModelInferrer.java:308) at com.commerzbank.core.poc.dialog.jvmmodel.DialogJvmModelInferrer.infer(DialogJvmModelInferrer.java:406) at org.eclipse.xtext.xbase.jvmmodel.AbstractModelInferrer._infer(AbstractModelInferrer.java:27) at com.commerzbank.core.poc.dialog.jvmmodel.DialogJvmModelInferrer.infer(DialogJvmModelInferrer.java:408) at org.eclipse.xtext.xbase.jvmmodel.JvmModelAssociator.installDerivedState(JvmModelAssociator.java:203) at org.eclipse.xtext.resource.DerivedStateAwareResource.installDerivedState(DerivedStateAwareResource.java:76) at org.eclipse.xtext.resource.DerivedStateAwareResource.getContents(DerivedStateAwareResource.java:41) at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory$StatefulFactory.create(ParserBasedContentAssistContextFactory.java:143) at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory.create(ParserBasedContentAssistContextFactory.java:549) at org.eclipse.xtext.ui.codetemplates.ui.contentassist.CodetemplatesProposalProvider$2.process(CodetemplatesProposalProvider.java:318) at org.eclipse.xtext.ui.codetemplates.ui.contentassist.CodetemplatesProposalProvider$2.process(CodetemplatesProposalProvider.java:1) at org.eclipse.xtext.util.concurrent.IUnitOfWork$Void.exec(IUnitOfWork.java:36) at org.eclipse.xtext.ui.codetemplates.ui.projectedEditing.TemporaryResourceProvider.useTemporaryResource(TemporaryResourceProvider.java:37) ... 115 more Caused by: java.net.MalformedURLException: unknown protocol: java at java.net.URL.<init>(URL.java:574) at java.net.URL.<init>(URL.java:464) at java.net.URL.<init>(URL.java:413) at org.eclipse.emf.ecore.resource.impl.URIHandlerImpl.createInputStream(URIHandlerImpl.java:176) at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.createInputStream(ExtensibleURIConverterImpl.java:350) at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1262) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:255) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:270) ... 135 more
Can't reproduce the issue anymore. Since it happened with an Xbase derived language I tried it with the Domainmodel language's templates. The template editor works as expected and content assist does not produce an error at all places.
Requested via bug 522520. -M.
