[rules-users] Internal error in Drools Plugin

marc.schneiderman marc at nteligence.com
Mon Nov 1 18:35:06 EDT 2010 

Environment 
-----------------
Windows 7 64bit
Java 1.6 JRE
Eclipse SDK 3.5.2
GEF 3.5.2
Drools 5.1 GA Eclipse Workbench


When importing a very simple drools project ( a personal implementation of
the classic fibonacci problem), which had worked fine without any build or
runtime errors when using drools 5.0, I received the following two build
errors in the Eclipse environment. I tried looking on the Nabble news group
but did not find any similar postings. Also Googled the errors but to no
avail. Any help would be very much appreciated. Thanks.

ERROR #1
-----------
Internal error in Drools plugin:
org.drools.RuntimeDroolsException: value '1.4' is not a valid language level
	at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setJavaLanguageLevel(JavaDialectConfiguration.java:79)
	at org.drools.eclipse.DroolsEclipsePlugin.generateParsedResource(Unknown
Source)
	at org.drools.eclipse.DroolsEclipsePlugin.generateParsedResource(Unknown
Source)
	at org.drools.eclipse.DroolsEclipsePlugin.parseResource(Unknown Source)
	at
org.drools.eclipse.editors.DroolsLineBreakpointAdapter.canToggleLineBreakpoints(Unknown
Source)
	at
org.eclipse.debug.ui.actions.ToggleBreakpointAction.update(ToggleBreakpointAction.java:187)
	at
org.eclipse.ui.texteditor.AbstractRulerActionDelegate.update(AbstractRulerActionDelegate.java:132)
	at
org.eclipse.ui.texteditor.AbstractRulerActionDelegate.setActiveEditor(AbstractRulerActionDelegate.java:89)
	at
org.eclipse.debug.ui.actions.RulerToggleBreakpointActionDelegate.setActiveEditor(RulerToggleBreakpointActionDelegate.java:98)
	at
org.eclipse.ui.internal.EditorPluginAction.editorChanged(EditorPluginAction.java:75)
	at
org.eclipse.ui.internal.EditorActionBuilder$EditorContribution.editorChanged(EditorActionBuilder.java:83)
	at
org.eclipse.ui.internal.EditorActionBuilder$ExternalContributor.setActiveEditor(EditorActionBuilder.java:129)
	at
org.eclipse.ui.internal.EditorActionBars.partChanged(EditorActionBars.java:345)
	at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:632)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at
org.eclipse.ui.internal.WorkbenchPage.activatePart(WorkbenchPage.java:621)
	at
org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3527)
	at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:614)
	at
org.eclipse.ui.internal.WorkbenchPage.showEditor(WorkbenchPage.java:2943)
	at
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2843)
	at
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2762)
	at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2754)
	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2705)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2701)
	at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2685)
	at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2676)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:1105)
	at
org.eclipse.ui.internal.views.markers.ExtendedMarkersView.openMarkerInEditor(ExtendedMarkersView.java:254)
	at
org.eclipse.ui.internal.views.markers.ExtendedMarkersView.openSelectedMarkers(ExtendedMarkersView.java:1572)
	at
org.eclipse.ui.internal.views.markers.ExtendedMarkersView$4.open(ExtendedMarkersView.java:568)
	at
org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
	at
org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:842)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
	at
org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:840)
	at
org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1101)
	at
org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1205)
	at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264)
	at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
	at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
	at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
	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:368)
	at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1287)

ERROR #2
----------
Unable to create view ID org.eclipse.ui.views.ContentOutline: value '1.4' is
not a valid language level:
org.drools.RuntimeDroolsException: value '1.4' is not a valid language level
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setJavaLanguageLevel(JavaDialectConfiguration.java:79)
at org.drools.eclipse.DroolsEclipsePlugin.generateParsedResource(Unknown
Source)
at org.drools.eclipse.DroolsEclipsePlugin.parseResource(Unknown Source)
at
org.drools.eclipse.editors.outline.RuleContentOutlinePage.initRules(Unknown
Source)
at org.drools.eclipse.editors.outline.RuleContentOutlinePage.update(Unknown
Source)
at
org.drools.eclipse.editors.outline.RuleContentOutlinePage.createControl(Unknown
Source)
at
org.eclipse.ui.views.contentoutline.ContentOutline.doCreatePage(ContentOutline.java:137)
at org.eclipse.ui.part.PageBookView.createPage(PageBookView.java:409)
at org.eclipse.ui.part.PageBookView.partActivated(PageBookView.java:752)
at org.eclipse.ui.part.PageBookView.showBootstrapPart(PageBookView.java:921)
at org.eclipse.ui.part.PageBookView.createPartControl(PageBookView.java:492)
at
org.eclipse.ui.views.contentoutline.ContentOutline.createPartControl(ContentOutline.java:121)
at
org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:367)
at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:226)
at
org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:529)
at
org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
at
org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
at
org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
at
org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
at
org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:668)
at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:576)
at
org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568)
at
org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:272)
at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:982)
at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2626)
at org.eclipse.ui.internal.WorkbenchWindow$27.run(WorkbenchWindow.java:2965)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at
org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2946)
at
org.eclipse.ui.internal.WorkbenchWindow$21.runWithException(WorkbenchWindow.java:2263)
at
org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
at
org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
at
org.eclipse.ui.internal.Workbench$28.runWithException(Workbench.java:1384)
at
org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2316)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
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:368)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)



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