| TextCellEditor causes a "SWT Resource was not properly disposed" [message #1854865] |
Thu, 15 September 2022 07:29  |
Eclipse User |
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I am currently using NatTable V. 2.0.1.
From the 2.0.2 and 2.0.3 changelogs, I could not see that this problem has been solved.
In Eclipse 4.19 (2021-03) an "API for Resource disposal tracking" was added to SWT, see https://www.eclipse.org/eclipse/news/4.19/platform_isv.php#resource-disposal-tracking
Whenever I run my NatTable instances, I get this exception:
java.lang.Error: SWT Resource was not properly disposed
at org.eclipse.swt.graphics.Resource.initNonDisposeTracking(Resource.java:172)
at org.eclipse.swt.graphics.Resource.<init>(Resource.java:120)
at org.eclipse.swt.graphics.Cursor.<init>(Cursor.java:119)
at org.eclipse.nebula.widgets.nattable.edit.editor.TextCellEditor.createEditorControl(TextCellEditor.java:355)
at org.eclipse.nebula.widgets.nattable.edit.editor.TextCellEditor.createEditorControl(TextCellEditor.java:332)
at org.eclipse.nebula.widgets.nattable.edit.editor.TextCellEditor.activateCell(TextCellEditor.java:248)
at org.eclipse.nebula.widgets.nattable.edit.editor.AbstractCellEditor.activateCell(AbstractCellEditor.java:169)
at org.eclipse.nebula.widgets.nattable.edit.EditController.editCell(EditController.java:104)
at org.eclipse.nebula.widgets.nattable.edit.command.EditCellCommandHandler.doCommand(EditCellCommandHandler.java:51)
at org.eclipse.nebula.widgets.nattable.edit.command.EditCellCommandHandler.doCommand(EditCellCommandHandler.java:1)
at org.eclipse.nebula.widgets.nattable.command.AbstractLayerCommandHandler.doCommand(AbstractLayerCommandHandler.java:22)
at org.eclipse.nebula.widgets.nattable.layer.AbstractLayer.doCommand(AbstractLayer.java:186)
at org.eclipse.nebula.widgets.nattable.layer.CompositeLayer.doCommand(CompositeLayer.java:134)
at org.eclipse.nebula.widgets.nattable.grid.layer.GridLayer.doCommand(GridLayer.java:194)
at org.eclipse.nebula.widgets.nattable.NatTable.doCommand(NatTable.java:827)
at org.eclipse.nebula.widgets.nattable.edit.action.MouseEditAction.run(MouseEditAction.java:33)
at org.eclipse.nebula.widgets.nattable.ui.mode.MouseModeEventHandler.executeClickAction(MouseModeEventHandler.java:194)
at org.eclipse.nebula.widgets.nattable.ui.mode.MouseModeEventHandler.mouseUp(MouseModeEventHandler.java:94)
at org.eclipse.nebula.widgets.nattable.ui.mode.ModeSupport.mouseUp(ModeSupport.java:117)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:224)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4243)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1060)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4060)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3632)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1154)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1045)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
When I look at the TextCellEditor.createEditorControl(), I see this line:
textControl.setCursor(new Cursor(Display.getDefault(), SWT.CURSOR_IBEAM));
It would look like this Cursor instance needs to be disposed by calling Cursor.destroy() when disposing the Text widget.
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