Community
Participate
Working Groups
Creating a new java project and trying to add the recommenders nature via context-menu leads to an exception. Steps to reproduce: 1) create new project 2) open context menu for the project in the package explorer 3) select "Recommenders"->"Add/Remove Recommenders Nature" Expected behaviour: The nature should be added to the project and a builder should be installed. Actual behaviour: A NullPointerException is thrown. Build-Date: current git-version Stacktrace: java.lang.ClassNotFoundException: org.eclipse.recommenders.commons.injection.ExtensionFactory:org.eclipse.recommenders.internal.rcp.RecommendersNature at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:338) at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:232) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1197) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:904) at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55) at org.eclipse.core.internal.resources.NatureManager.createNature(NatureManager.java:231) at org.eclipse.core.internal.resources.NatureManager$1.run(NatureManager.java:142) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.resources.NatureManager.configureNature(NatureManager.java:158) at org.eclipse.core.internal.resources.NatureManager.configureNatures(NatureManager.java:203) at org.eclipse.core.internal.resources.Project.basicSetDescription(Project.java:105) at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1210) at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1238) at org.eclipse.recommenders.internal.rcp.RecommendersNatureToggleAction.toggleNature(RecommendersNatureToggleAction.java:62) at org.eclipse.recommenders.internal.rcp.RecommendersNatureToggleAction.run(RecommendersNatureToggleAction.java:45) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251) 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.Display.sendEvent(Display.java:3776) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) 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:369) 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:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
fixed in head. please pull changes, rebase, and verify :) Thanks for reporting, Marcel
I have figured out the problem and documented it in the wiki: http://wiki.eclipse.org/Recommenders/ExtensionFactory You may switch back to the use of ExtensionFactory now. But note the alternative way of configuration you need (mentioned in the wiki page).
Closing this issue. Please give latest dev build (v0.5) a try: http://download.eclipse.org/recommenders/updates/dev/e37/ http://download.eclipse.org/recommenders/updates/dev/e42/
