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Asked: 2026-05-10T19:00:13+00:00

I have a JFrame with a menu bar and a canvas covering all the

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I have a JFrame with a menu bar and a canvas covering all the remaining surface. When I click on the menu bar, the menu opens behind the Canvas and I can’t see it. Has anyone experienced this? Other than resizing the Canvas (which I am reluctant to do) is there any solution?

Thanks,
Vlad

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1 Answer

  1. You’re experiencing heavyweight vs. lightweight issues.

    The quick fix: 

    // Call this sometime before you use your menus  JPopupMenu.setDefaultLightWeightPopupEnabled(false)

    Heavyweight vs. Lightweight

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