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java.lang.NullPointerException: 	at org.jboss.ide.eclipse.as.core.util.ServerUtil.isJBoss7(ServerUtil.java:103)	at org.jboss.ide.eclipse.as.core.util.ServerUtil.isJBoss7(ServerUtil.java:99)	at org.jboss.ide.eclipse.as.ui.views.server.extensions.ShowInWebManagementActionProvider.accepts(ShowInWebManagementActionProvider.java:28)	at org.jboss.ide.eclipse.as.ui.views.server.extensions.AbstractOpenBrowserServerAction$OpenBrowserAction.accept(AbstractOpenBrowserServerAction.java:97)	at org.eclipse.wst.server.ui.internal.view.servers.AbstractServerAction.selectionChanged(AbstractServerAction.java:85)	at org.eclipse.ui.actions.SelectionProviderAction.selectionChanged(SelectionProviderAction.java:143)	at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162)	at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188)	at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1725)	at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1139)	at org.eclipse.ui.navigator.CommonViewer.setSelection(CommonViewer.java:377)	at org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:394)	at org.eclipse.mylyn.internal.context.ui.FocusedViewerManager.initializeViewerSelection(FocusedViewerManager.java:454)	at org.eclipse.mylyn.internal.context.ui.ContextUiPlugin.lazyStart(ContextUiPlugin.java:273)	at org.eclipse.mylyn.internal.context.ui.ContextUiPlugin.initLazyStart(ContextUiPlugin.java:236)	at org.eclipse.mylyn.internal.context.ui.ContextUiPlugin.access$0(ContextUiPlugin.java:232)	at org.eclipse.mylyn.internal.context.ui.ContextUiPlugin$ContextActivationListener.contextChanged(ContextUiPlugin.java:85)	at org.eclipse.mylyn.internal.context.core.InteractionContextManager$1.run(InteractionContextManager.java:174)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.mylyn.internal.context.core.InteractionContextManager.activateContext(InteractionContextManager.java:165)	at org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin$1.taskActivated(TasksUiPlugin.java:261)	at org.eclipse.mylyn.internal.tasks.core.TaskActivityManager.activateTask(TaskActivityManager.java:425)	at org.eclipse.mylyn.internal.tasks.ui.commands.ActivateTaskHandler.execute(ActivateTaskHandler.java:30)	at org.eclipse.mylyn.internal.tasks.ui.commands.AbstractTaskHandler.process(AbstractTaskHandler.java:80)	at org.eclipse.mylyn.internal.tasks.ui.commands.AbstractTaskHandler.process(AbstractTaskHandler.java:64)	at org.eclipse.mylyn.internal.tasks.ui.commands.AbstractTaskHandler.execute(AbstractTaskHandler.java:46)	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.executeCommandInContext(HandlerService.java:270)	at org.eclipse.mylyn.internal.tasks.ui.util.TasksUiInternal.executeCommand(TasksUiInternal.java:1228)	at org.eclipse.mylyn.internal.tasks.ui.util.TasksUiInternal.activateTaskThroughCommand(TasksUiInternal.java:1274)	at org.eclipse.mylyn.internal.tasks.ui.views.TaskListCellModifier.toggleTaskActivation(TaskListCellModifier.java:134)	at org.eclipse.mylyn.internal.tasks.ui.views.TaskListView$11.mouseUp(TaskListView.java:888)	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:219)	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:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	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)