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Asked: 2026-05-24T04:51:32+00:00

When JVM starts, It loads current OS keysym mappings for a specific key. When

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When JVM starts, It loads current OS keysym mappings for a specific key. When I change dinamically OS key mappings with “xmodmap”, JVM can’t recognize the change, and still use’s old keysyms.
How can I force programatically JVM to reread OS key mappings?

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  1. Editorial Team

    Oracle: Troubleshooting guide for java desktop technologies

    On UNIX systems that support dynamic keyboard changes, a running Java application does not recognize such a change. For instance, changing the keyboard from US to German does not change the keyboard mapping. Although the X server detects the change and sends out a MappingNotify event to interested clients, AWT does not refresh its notion of the keycode-keysym mapping.

    Seems the answer is: not.

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