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Build Identifier: I20100608-0911 java.lang.NullPointerException at org.eclipse.swt.widgets.Link.textView_clickOnLink_atIndex(Link.java:117) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5216) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220) at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1025) at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1021) at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2240) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4976) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220) at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:1943) at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2008) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5040) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4582) at org.eclipse.swt.widgets.Display.applicationProc(Display.java:4659) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:115) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3274) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663) 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) Reproducible: Sometimes Steps to Reproduce: Haven't been able to associate this with a particular activity, but happens occasionally.
Not sure how the offsets field is null.
I guess the widget is disposed in the Selection event by the user. I have experienced such exception in the past. The fix is to we should check for isDisposed() after we send the selectionEvent.
(In reply to comment #2) > I guess the widget is disposed in the Selection event by the user. I think Praveen is right. Here's a test case. Run it and click on the link and you'll get the NPE in the description. ======================= import org.eclipse.swt.*; import org.eclipse.swt.events.*; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; public class PR324497 { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setSize(100,100); final Shell shell2 = new Shell(display); shell2.setSize(260, 260); GridLayout layout = new GridLayout(1, false); shell2.setLayout(layout); Link link = new Link(shell2, SWT.LEFT); link.setText("This is a <a>link</a>."); link.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { shell2.close(); shell2.dispose(); } }); Label label = new Label(shell2, SWT.LEFT); label.setText("This is a label."); shell.open(); shell2.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }
Created attachment 178359 [details] Patch Fixed as Praveen suggested.
Fixed > 20100907.
*** Bug 338228 has been marked as a duplicate of this bug. ***
*** Bug 339774 has been marked as a duplicate of this bug. ***
