Community
Participate
Working Groups
-We are using MinGW gdb. -We are connecting the debugger to a running process At a breakpoint, when browsing the variables, an error dialog appears: Title: Replace children Message: error The following .log entry is generated: !ENTRY org.eclipse.ui 4 0 2006-01-09 07:53:01.36 !MESSAGE Widget is disposed !STACK 0 org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:2942) at org.eclipse.swt.SWT.error(SWT.java:2865) at org.eclipse.swt.SWT.error(SWT.java:2836) at org.eclipse.swt.widgets.Widget.error(Widget.java:395) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:297) at org.eclipse.swt.widgets.TreeItem.getItems(TreeItem.java:590) at org.eclipse.jface.viewers.TreeViewer.getChildren(TreeViewer.java:329) at org.eclipse.debug.internal.ui.views.RemoteTreeViewer.access$3(RemoteTreeViewer.java:1) at org.eclipse.debug.internal.ui.views.RemoteTreeViewer$3.run(RemoteTreeViewer.java:400) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1201) at org.eclipse.debug.internal.ui.views.RemoteTreeViewer.replace(RemoteTreeViewer.java:392) at org.eclipse.debug.internal.ui.views.variables.VariablesViewer.replace(VariablesViewer.java:144) at org.eclipse.debug.internal.ui.views.RemoteTreeContentManager$1.runInUIThread(RemoteTreeContentManager.java:214) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:93) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3057) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2716) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948) The variables view is affected by the "children" of the expanded node being drawn at the same level as the expanded node (not beneath the node, as they should). This was not a problem with Eclipse 3.1.0 and CDT 3.0. But, it is now a problem with Eclipse 3.1.1 and CDT 3.0. Thanks, Chad Barnes Rockwell Collins, Inc.
Upgrading to CDT 3.0.1 seemed to resolve the issue.
We are seeing a similar issue with CDT 4.0, in our case resulting in an error dialog 'Asynchronous viewer update'. The key to reproducing this for us is a situation where a local variable comes in and out of scope while stepping through a while loop. In this case, intermittently, the StructuredViewer.elementMap member ends up with an entry containing a disposed widget. As far as I can tell, this isn't a valid state, but the code is complex and I am unable to determine how this state is possible. We are working around the problem by adding a guard to AbstractTreeViewer.internalFindItem(TreePath): if (!widget.isDisposed() && widget instanceof Item)
