Cannot use Undo in Eclipse

[DjeeThomas]

Eclipse version:
Eclipse IDE for Enterprise Java and Web Developers (includes Incubating components)
Version: 2021-09 (4.21.0)
Build id: 20210910-1417
OS: Windows 10, v.10.0, x86_64 / win32
Java vendor: Oracle Corporation
Java runtime version: 15.0.1+9-18
Java version: 15.0.1

Latest RED Version available in the Marketplace.

I cannot use the Undo/Ctrl+z feature in Eclipse. It works just fine in other editors, such as Python Editor or Text Editor, but in RED it's disabled.
It has been happening for quite some time already, even in previous Eclipse versions.

Is this some configuration that I don't have enabled, or is it a bug in RED?

[NikitaOstr]

As I know by default in key bindings the 'undo' is defined for table context. So I changed this behavior to 'content for source page'. Hope it will help you)

[DjeeThomas]

I installed some updates in Eclipse Marketplace that were not automatically installed, EGradle Editor was one of those IIRC. It seems that the Undo option works now. RED was not updated, so maybe was related to some dependencies some dependencies.

@NikitaOstr Thanks for the tip! I will try that, if this stops working again.

[DjeeThomas]

This is still an issue. @NikitaOstr suggestion does not help. In fact I get an execution exception when I change the key binding values.

`eclipse.buildId=4.21.0.I20210906-0500
java.version=15.0.1
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -data file:/C:/Users/tomega/eclipse-workspace/ -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product

org.eclipse.e4.ui.workbench
Error
Wed Nov 03 11:19:03 EET 2021
Execution exception for: ParameterizedCommand(Command(org.robotframework.ide.eclipse.undoInTable,Undo,
,
Category(org.robotframework.ide.eclipse.robotCommands,Robot,null,true),
org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@1d43cbb8,
,,true),null) in
context chain: WorkbenchContext -> TrimmedWindowImplContext -> PerspectiveImpl (org.eclipse.rse.ui.view.SystemPerspective) Context -> PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.robotframework.ide.tableditor (Decker_test_suite.robot) Context -> MultiPageEditorSite (org.robotframework.ide.eclipse.main.plugin.tableeditor.source.SuiteSourceEditor)

org.eclipse.core.commands.ExecutionException: Error executing 'org.robotframework.ide.eclipse.undoInTable': org.eclipse.e4.core.di.InjectionException: Unable to process "E4UndoHandler#undo()": no actual value was found for the argument "RobotEditorCommandsStack".
at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:170)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:308)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:580)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:647)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:439)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:96)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1270)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1059)
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.sendKeyEvent(Widget.java:1111)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1107)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1536)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4875)
at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4753)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:340)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4958)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(Native Method)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3624)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1041)
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:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
Caused by: org.eclipse.e4.core.di.InjectionException: org.eclipse.e4.core.di.InjectionException: Unable to process "E4UndoHandler#undo()": no actual value was found for the argument "RobotEditorCommandsStack".
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:68)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:317)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:251)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
... 45 more
Caused by: org.eclipse.e4.core.di.InjectionException: Unable to process "E4UndoHandler#undo()": no actual value was found for the argument "RobotEditorCommandsStack".
at org.eclipse.e4.core.internal.di.InjectorImpl.reportUnresolvedArgument(InjectorImpl.java:478)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:313)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:232)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:129)
at org.robotframework.red.commands.DIParameterizedHandler.execute(DIParameterizedHandler.java:44)
at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:283)
at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:97)
at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
... 49 more
`

[NikitaOstr]

Agreed, it's weird:
org.eclipse.core.commands.ExecutionException: Error executing 'org.robotframework.ide.eclipse.undoInTable': org.eclipse.e4.core.di.InjectionException: Unable to process "E4UndoHandler#undo()": no actual value was found for the argument "RobotEditorCommandsStack".