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  1. JDK
  2. JDK-8267572

java.awt.Desktop.open hangs on Linux when called from FX application thread

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P4 P4
    • tbd
    • 8, 15, 16, 17
    • client-libs
    • None

    • JDK 15 (also fails with the latest 17-ea build)
      Ubuntu 20.04 (also fails on Ubuntu 16.04).
      JavaFX 15 (also fails with latest FX 17 ea build)

      This is a follow-on bug that I discovered while testing the fix for JDK-8210199.

      To reproduce, run the attached test program on Linux. It will hang with a possible deadlock. The FX application thread, which calls Desktop.open, is stuck in "sun.awt.X11.XDesktopPeer.gnome_url_show".

      The complete thread stack dump is attached.

      It's quite possible that the FX glass GTK code is doing something to trigger this.

      This runs fine on macOS and Windows.

      Workaround: wrap the call to Desktop.open in SwingUtilities.invokeLater().

        1. FxSwingDeadlock.java
          1 kB

            azvegint Alexander Zvegintsev
            kcr Kevin Rushforth
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              Created:
              Updated: