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Asked: 2026-06-10T12:25:51+00:00

I need to build a Java app to run like a daemon on UNIX

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I need to build a Java app to run like a daemon on UNIX (FreeBSD). The app would need to start up just like any UNIX process. After starting, it sits there and wait for commands from the master host/server. Commands are fed to this app via RESTful web services calls – so it needs to listen for network connections at a particular port. At the same time, it needs to access resouces at external hosts/websites by making outgoing http calls.

What is the best approach for writing such app? I am thinking of writing a standalone app and include Grizzly and Jersey libraries. Is this the right approach? Is there a better approach?

(Also, I don’t think I should write a normal web application – war file – to be deployed in GlassFish or some sort of Java container.)

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  1. Editorial Team

    What is the best approach for writing such app?

    There is no single best approach.

    I am thinking of writing a standalone app and include Grizzly and Jersey libraries. Is this the right approach?

    It will work, assuming that you follow the relevant documentation.

    Is there a better approach?

    Possibly.

    (Also, I don’t think I should write a normal web application – war file – to be deployed in GlassFish or some sort of Java container.)

    That is another approach.

    Another would be to use a light-weight container like Jetty.

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