java.lang.Error: SWT Resource was not properly disposed in org.eclipse.wb.tests.designer.core.AbstractJavaProjectTest.createImagePNG

[vogella]

During Unit test execution I see lots of errors messages similar to the following.

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.(Resource.java:120)
at org.eclipse.swt.graphics.Image.(Image.java:205)
at org.eclipse.wb.tests.designer.core.AbstractJavaProjectTest.createImageBytesPNG(AbstractJavaProjectTest.java:571)
at org.eclipse.wb.tests.designer.core.AbstractJavaProjectTest.createImagePNG(AbstractJavaProjectTest.java:562)
at org.eclipse.wb.tests.designer.core.model.description.ComponentDescriptionHelperTest.test_source_fromProjectMeta(ComponentDescriptionHelperTest.java:457)

[cniweb]

We have a similar error:
!MESSAGE Not properly disposed SWT resource !STACK 0 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.Image.<init>(Image.java:498) at org.eclipse.wb.internal.core.utils.ui.UiUtils.getCopy(UiUtils.java:467) at org.eclipse.wb.internal.core.model.description.helpers.ComponentPresentationHelper.createPresentation(ComponentPresentationHelper.java:230) at org.eclipse.wb.internal.core.model.description.helpers.ComponentPresentationHelper.getSlowPresentation(ComponentPresentationHelper.java:208) at org.eclipse.wb.internal.core.model.description.helpers.ComponentPresentationHelper.getPresentation(ComponentPresentationHelper.java:120) at org.eclipse.wb.core.editor.palette.model.entry.ComponentEntryInfo.preparePresentation(ComponentEntryInfo.java:259) at org.eclipse.wb.core.editor.palette.model.entry.ComponentEntryInfo.initialize(ComponentEntryInfo.java:219) at org.eclipse.wb.internal.core.editor.palette.DesignerPalette.getVisualEntry(DesignerPalette.java:264) at org.eclipse.wb.internal.core.editor.palette.DesignerPalette$4.getEntries(DesignerPalette.java:339) at org.eclipse.wb.core.controls.palette.PaletteComposite$CategoryFigure.<init>(PaletteComposite.java:368) at org.eclipse.wb.core.controls.palette.PaletteComposite$PaletteFigure.refresh(PaletteComposite.java:284) at org.eclipse.wb.core.controls.palette.PaletteComposite.refreshPalette(PaletteComposite.java:199) at org.eclipse.wb.core.controls.palette.PaletteComposite.setPalette(PaletteComposite.java:192) at org.eclipse.wb.internal.core.editor.palette.DesignerPalette.showPalette(DesignerPalette.java:447) at org.eclipse.wb.internal.core.editor.palette.DesignerPalette.reloadPalette(DesignerPalette.java:179) at org.eclipse.wb.internal.core.editor.palette.DesignerPalette.setInput(DesignerPalette.java:145) at org.eclipse.wb.internal.core.editor.JavaDesignComposite.refresh(JavaDesignComposite.java:147) at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:604) at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:468) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:236) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4779) at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:464) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:434) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:352) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:468) at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:484) at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:432) at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:389) at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90) at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:275) at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:252) at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:127) at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252) 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.Widget.sendEvent(Widget.java:1084) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1069) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:773) at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3248) at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1882) at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:331) 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) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) at org.eclipse.equinox.launcher.Main.run(Main.java:1467)

[vogella]

@cniweb please consider PR

[cniweb]

@vogella I have no idea how to fix the error and so I can't create a PR either!