Undo shortcut not working in Eclipse

Undo shortcut not working in Eclipse

The key bindings are stored in the file [workspace].metadata.pluginsorg.eclipse.e4.workbenchworkbench.xmi.

You can search for Ctrl+Z in this file. What does it look like? You could try to edit it by hand.

Of course, it is advisable to backup the workspace before.

From time to time, I have encountered similar issues with keyboard shortcuts. They just disappear, or doesnt seem to work as expected.

Until I figure out what the root cause is, I check key bindings.

Window > Preferences > General > Keys

Check if the key bindings are still valid. If not, then set them and it should work.

Undo shortcut not working in Eclipse

Window > Preferences > General > Keys
Look for Undo in the list, if the Binding is empty click on Restore Command apply and close. That should enable the shortcut.