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If you execute the quickfix that adds xbase.lib and xtend2.lib to a the class path and the your project is a plain Java project (not a Plug-In Project), the exception below is thrown in the host-workbench's console. !STACK 0 java.lang.NullPointerException at org.eclipse.xtext.xtend2.ui.buildpath.XtendLibClasspathAdder.addToPluginManifest(XtendLibClasspathAdder.java:73) at org.eclipse.xtext.xtend2.ui.buildpath.XtendLibClasspathAdder.addLibsToClasspath(XtendLibClasspathAdder.java:47) at org.eclipse.xtext.xtend2.ui.quickfix.Xtend2QuickfixProvider$13.apply(Xtend2QuickfixProvider.java:534) at org.eclipse.xtext.ui.editor.model.edit.SemanticModificationWrapper$1.process(SemanticModificationWrapper.java:35) at org.eclipse.xtext.ui.editor.model.edit.SemanticModificationWrapper$1.process(SemanticModificationWrapper.java:1) at org.eclipse.xtext.util.concurrent.IUnitOfWork$Void.exec(IUnitOfWork.java:36) at org.eclipse.xtext.ui.editor.model.edit.ReconcilingUnitOfWork.exec(ReconcilingUnitOfWork.java:37) at org.eclipse.xtext.ui.editor.model.edit.ReconcilingUnitOfWork.exec(ReconcilingUnitOfWork.java:1) at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.modify(AbstractReadWriteAcces.java:49) at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.modify(XtextDocument.java:181) at org.eclipse.xtext.ui.editor.model.XtextDocument.internalModify(XtextDocument.java:90) at org.eclipse.xtext.ui.editor.model.XtextDocument.modify(XtextDocument.java:83) at org.eclipse.xtext.ui.editor.model.edit.SemanticModificationWrapper.apply(SemanticModificationWrapper.java:31) at org.eclipse.xtext.ui.editor.quickfix.IssueResolution.apply(IssueResolution.java:60) at org.eclipse.xtext.ui.editor.quickfix.QuickAssistCompletionProposal.apply(QuickAssistCompletionProposal.java:32) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.insertProposal(CompletionProposalPopup.java:935) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.insertSelectedProposalWithMask(CompletionProposalPopup.java:881) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$27(CompletionProposalPopup.java:877) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$5.widgetDefaultSelected(CompletionProposalPopup.java:657) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:119) 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(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: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)
and... the libs are not being added to the classpath.
I suppose your "plain Java project" still has the plugin nature. Nevertheless, the fix should not throw exceptions.
Pushed to MASTER.
Closing all bugs that were set to RESOLVED before Neon.0
