[ 
https://issues.apache.org/jira/browse/NETBEANS-217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308509#comment-16308509
 ] 

Matthias Bläsing commented on NETBEANS-217:
-------------------------------------------

Thomas, could you please check netbeans master? I checked the PR and found the 
git commit message editing problem gone (and the undo still working). The PR 
was merged into master. Thank you!

> ClassCastException when editing Git commit message
> --------------------------------------------------
>
>                 Key: NETBEANS-217
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-217
>             Project: NetBeans
>          Issue Type: Bug
>          Components: versioncontrol - Git
>    Affects Versions: 9.0
>         Environment: Windows 10
> Java 9
> Build: incubator-netbeans-linux-268-on-20171213
>            Reporter: Thomas Kellerer
>              Labels: Java9-IDE
>
> When editing the commit message in a Git commit window, every keystroke 
> generates the following exception:
> {noformat}
> java.lang.ClassCastException: 
> java.desktop/javax.swing.text.AbstractDocument$DefaultDocumentEventUndoableWrapper
>  cannot be cast to 
> java.desktop/javax.swing.text.AbstractDocument$DefaultDocumentEvent
>       at 
> org.netbeans.modules.versioning.util.UndoRedoSupport$CompoundUndoManager.undoableEditHappened(UndoRedoSupport.java:111)
>       at 
> java.desktop/javax.swing.text.AbstractDocument.fireUndoableEditUpdate(AbstractDocument.java:293)
>       at 
> java.desktop/javax.swing.text.AbstractDocument.handleRemove(AbstractDocument.java:632)
>       at 
> java.desktop/javax.swing.text.AbstractDocument.remove(AbstractDocument.java:596)
>       at 
> java.desktop/javax.swing.text.DefaultEditorKit$DeletePrevCharAction.actionPerformed(DefaultEditorKit.java:1075)
>       at 
> java.desktop/javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1805)
>       at 
> java.desktop/javax.swing.JComponent.processKeyBinding(JComponent.java:2901)
>       at 
> java.desktop/javax.swing.JComponent.processKeyBindings(JComponent.java:2949)
>       at 
> java.desktop/javax.swing.JComponent.processKeyEvent(JComponent.java:2863)
>       at java.desktop/java.awt.Component.processEvent(Component.java:6355)
>       at java.desktop/java.awt.Container.processEvent(Container.java:2259)
>       at 
> java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4961)
>       at 
> java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2317)
>       at java.desktop/java.awt.Component.dispatchEvent(Component.java:4793)
>       at 
> java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1955)
>       at 
> java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:827)
>       at 
> java.desktop/java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1096)
>       at 
> java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:966)
>       at 
> java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:792)
>       at 
> java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4842)
>       at 
> java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2317)
>       at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2758)
>       at java.desktop/java.awt.Component.dispatchEvent(Component.java:4793)
>       at 
> java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:766)
>       at java.desktop/java.awt.EventQueue.access$500(EventQueue.java:97)
>       at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:717)
>       at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:711)
>       at java.base/java.security.AccessController.doPrivileged(Native Method)
>       at 
> java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:89)
>       at 
> java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:99)
>       at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:739)
>       at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:737)
>       at java.base/java.security.AccessController.doPrivileged(Native Method)
>       at 
> java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:89)
>       at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:736)
>       at 
> org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
> [catch] at 
> java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:199)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
>       at 
> java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
>       at 
> java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
>       at 
> java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
>       at java.base/java.security.AccessController.doPrivileged(Native Method)
>       at 
> java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
>       at java.desktop/java.awt.Dialog.show(Dialog.java:1070)
>       at 
> org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1060)
>       at 
> org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1110)
>       at 
> org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1082)
>       at 
> org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:105)
>       at 
> org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEventAccess(NbMutexEventProvider.java:115)
>       at 
> org.netbeans.modules.openide.util.NbMutexEventProvider$Event.readAccess(NbMutexEventProvider.java:75)
>       at 
> org.netbeans.modules.openide.util.LazyMutexImplementation.readAccess(LazyMutexImplementation.java:71)
>       at org.openide.util.Mutex.readAccess(Mutex.java:193)
>       at 
> org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1067)
>       at java.desktop/java.awt.Component.show(Component.java:1669)
>       at java.desktop/java.awt.Component.setVisible(Component.java:1616)
>       at java.desktop/java.awt.Window.setVisible(Window.java:1017)
>       at java.desktop/java.awt.Dialog.setVisible(Dialog.java:1005)
>       at 
> org.netbeans.modules.versioning.util.common.VCSCommitPanel.open(VCSCommitPanel.java:608)
>       at 
> org.netbeans.modules.git.ui.commit.GitCommitPanel.open(GitCommitPanel.java:166)
>       at 
> org.netbeans.modules.git.ui.commit.CommitAction$1.run(CommitAction.java:131)
>       at 
> java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
>       at 
> java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
>       at java.desktop/java.awt.EventQueue.access$500(EventQueue.java:97)
>       at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:717)
>       at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:711)
>       at java.base/java.security.AccessController.doPrivileged(Native Method)
>       at 
> java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:89)
>       at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
>       at 
> org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:199)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
>       at 
> java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
>       at 
> java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
> {noformat}



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