IllegalArgumentException in CleanUpTabPage

I disabled all cleanups (before adding a single one)
```
java.lang.IllegalArgumentException:
at org.eclipse.core.runtime.Assert.isLegal(Assert.java:66)
at org.eclipse.core.runtime.Assert.isLegal(Assert.java:50)
at org.eclipse.jdt.internal.ui.preferences.cleanup.CleanUpTabPage.setSelectedCleanUpCount(CleanUpTabPage.java:89)
at org.eclipse.jdt.internal.ui.preferences.cleanup.CleanUpTabPage.lambda$3(CleanUpTabPage.java:206)
at java.base/java.util.Observable.notifyObservers(Observable.java:173)
at java.base/java.util.Observable.notifyObservers(Observable.java:129)
at org.eclipse.jdt.internal.ui.preferences.formatter.ModifyDialogTabPage$ButtonPreference.checkboxChecked(ModifyDialogTabPage.java:195)
at org.eclipse.jdt.internal.ui.preferences.formatter.ModifyDialogTabPage$ButtonPreference.setChecked(ModifyDialogTabPage.java:218)
at org.eclipse.jdt.internal.ui.preferences.cleanup.CleanUpTabPage.doSetAll(CleanUpTabPage.java:130)
at org.eclipse.jdt.internal.ui.preferences.formatter.ModifyDialogTabPage.lambda$2(ModifyDialogTabPage.java:906)
at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4274)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:823)
at org.eclipse.jface.window.Window.open(Window.java:799)
at org.eclipse.jdt.internal.ui.fix.CleanUpRefactoringWizard$CleanUpConfigurationPage$2.widgetSelected(CleanUpRefactoringWizard.java:365)
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:4274)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:823)
at org.eclipse.jface.window.Window.open(Window.java:799)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.lambda$0(RefactoringWizardOpenOperation.java:190)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:209)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:126)
at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:41)
at org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter.startCleanupRefactoring(RefactoringExecutionStarter.java:257)
at org.eclipse.jdt.internal.ui.actions.AllCleanUpsAction.performRefactoring(AllCleanUpsAction.java:71)
at org.eclipse.jdt.internal.ui.actions.CleanUpAction.runOnMultiple(CleanUpAction.java:215)
at org.eclipse.jdt.internal.ui.actions.CleanUpAction.run(CleanUpAction.java:119)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:252)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:225)
at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:223)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4274)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:645)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:552)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
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:402)
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:651)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
at org.eclipse.equinox.launcher.Main.run(Main.java:1459)

```