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Editorial Team
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Asked: 2026-06-17T18:09:13+00:00

Can I force a running Java application to Garbage Collect from console ? Just

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Can I force a running Java application to Garbage Collect from console ?

Just to preempt some replies:

  • I know I can do it with JVisualVM but I only have console access not
    X-Windows access
  • I know System.gc() only requests garbage collection it doesnt force
    it, but thats seem to 3. work, so Im looking for a way of calling
    that externaly.
  • I know you shouldn’t garbage collect a working application, I’m doing
    this as part of a process of checking for a potential memory leak.’
  • The application is runinng in production I cannot modify its
    envrionment, jvm ecetera
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1 Answer

  1. Editorial Team

    JVisualVM can connect to remote processes if

    • relevant ports are open
    • java process was started with correct parameters to allow remote connections

    So you don’t need to be in an xWindows environment on the same machine to make the magic happen…

    Example or parameters to pass to java

    -Dcom.sun.management.jmxremote.port=9005\   
-Dcom.sun.management.jmxremote.authenticate=false\ 
-Dcom.sun.management.jmxremote.ssl=false
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