VPE throws NullPointerException when user tries to refresh a non-exsisting page ------------------------------------------------------------------------------- Key: JBIDE-3591 URL: https://issues.jboss.org/browse/JBIDE-3591 Project: Tools (JBoss Tools) Issue Type: Bug Components: upstream, visual-page-editor-templates Affects Versions: 3.0.0.CR2 Reporter: Yahor Radtsevich Assignee: Ilya Buziuk Fix For: LATER How to reproduce: 1. Start JBDS. 2. Create a new JSF project. 3. Open index.jsp in VPE. 4. Close JBDS (not closing index.jsp page) 5. Delete the project's folder from your hard disc. 6. Start JBDS again. ACTUAL RESULT: VPE shows text 'NULL' in the view of index.jsp EXPECTED RESULT: the VPE view of index.jsp is empty. 7. Press 'Refresh' button in the VPE view. ACTUAL RESULT: Message box 'Problem Occurred' appears. EXPECTED RESULT: Nothing happens. Also see stack trace: org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) at org.eclipse.swt.SWT.error(SWT.java:3777) at org.eclipse.swt.SWT.error(SWT.java:3695) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) 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:193) 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:386) 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:585) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) at org.eclipse.equinox.launcher.Main.main(Main.java:1212) Caused by: java.lang.NullPointerException at org.jboss.tools.vpe.editor.VpeController.visualRefreshImpl(VpeController.java:1380) at org.jboss.tools.vpe.editor.VpeController$4.runInUIThread(VpeController.java:1348) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133) ... 23 more