[jbosstools-issues] [JBoss JIRA] (JBIDE-18532) NPE in VPV Editor

NPE in VPV Editor ----------------- Key: JBIDE-18532 URL: https://issues.jboss.org/browse/JBIDE-18532 Project: Tools (JBoss Tools) Issue Type: Bug Components: visual-page-editor-core Affects Versions: 4.2.0.CR1 Reporter: Victor Rubezhny Assignee: Konstantin Marmalyukov Labels: Fix For: 4.3.0.Alpha1 NullPointerException occurs when switching from VPV Editor to HTML Editor. It looks like VPV Editor doesn't clean up some resources (like listeners) when it's closed. {code} !ENTRY org.eclipse.wst.sse.core 4 4 2014-10-08 03:45:40.608 !MESSAGE !STACK 0 java.lang.NullPointerException at org.jboss.tools.vpe.preview.editor.VpvEditor$10.documentChanged(VpvEditor.java:723) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument._fireDocumentChanged(BasicStructuredDocument.java:460) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.fireStructuredDocumentEvent(BasicStructuredDocument.java:1184) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.internalReplaceText(BasicStructuredDocument.java:1964) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2423) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2408) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$2(JobSafeStructuredDocument.java:1) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$3.run(JobSafeStructuredDocument.java:141) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replaceText(JobSafeStructuredDocument.java:144) at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replace(BasicStructuredDocument.java:2368) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$0(JobSafeStructuredDocument.java:1) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$1.run(JobSafeStructuredDocument.java:103) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149) at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replace(JobSafeStructuredDocument.java:106) at org.eclipse.jface.text.projection.ProjectionTextStore.replace(ProjectionTextStore.java:111) at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1184) at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1210) at org.eclipse.jface.text.projection.ProjectionDocument.replace(ProjectionDocument.java:629) at org.eclipse.jface.text.DefaultDocumentAdapter.replaceTextRange(DefaultDocumentAdapter.java:248) at org.eclipse.swt.custom.StyledText.modifyContent(StyledText.java:7268) at org.eclipse.swt.custom.StyledText.sendKeyEvent(StyledText.java:8111) at org.eclipse.swt.custom.StyledText.doContent(StyledText.java:2481) at org.eclipse.swt.custom.StyledText.handleKey(StyledText.java:5955) at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.java:5986) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5663) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4486) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1412) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1397) at org.eclipse.swt.widgets.Widget.sendIMKeyEvent(Widget.java:1474) at org.eclipse.swt.widgets.Control.gtk_commit(Control.java:3043) at org.eclipse.swt.widgets.Canvas.gtk_commit(Canvas.java:163) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2079) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5510) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4700) at org.eclipse.swt.internal.gtk.OS._gtk_im_context_filter_keypress(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_im_context_filter_keypress(OS.java:8499) at org.eclipse.swt.widgets.Control.filterKey(Control.java:2386) at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3262) at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:777) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2098) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5510) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4700) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9074) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1253) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2473) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3439) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236) 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:606) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) {code}