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javajconsole

jconsole GUI not showing on OSX

I am using adoptopenjdk8 and trying to launch the jconsole GUI to attach to my java application.

I am running the jconsole like so

MBROWN-MBP:~ mark$ which jconsole
/usr/bin/jconsole
MBROWN-MBP:~ mark$ jconsole -debug

This causes the application to open in the dock, but no GUI is opened so I cannot connect to my Java process.

I don't see any logs or output for the debug option to hint at what is going wrong.

Solution

  • I have a cheesy workaround, but I don't know why this vanishing situation happens ... and want to know a real solution. If I use multiple monitors, I get the same situation - looks like it's launched on the dock, but it does not appear.

    Workaround: If I remove the monitor connections and launch JConsole, the JConsole window appears. From there, I then reattach the monitors and use JConsole. This workaround isn't ideal and is time consuming, but it's possible to use JConsole.