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Editorial Team
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Asked: 2026-05-30T08:57:40+00:00

Google Chrome does not launch JNLP file automatically, so I recommend for our users

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Google Chrome does not launch JNLP file automatically, so I recommend for our users this solution. It works but the downloaded JNLP file remains in download folder. Deleting them manually is troublesome.

I want to add a function to our Java application:

  1. Google Chrome downloads a JNLP file and open it.
  2. The JNLP file starts our Java application.
  3. The Java application deletes the JNLP file (<= I want this function!)

Can I get the file path of the downloaded JNLP file which started the Java application?
Of cause, our Java application jar is signed and can access local resources.

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1 Answer

  1. Editorial Team

    There is nothing in the Java WebStart paper that describes such a mechanism, hence you are in “vendor-specific” territory, and I do not think that there is an API letting your application know where the JNLP file is.

    You can, however, provide a replacement for javaws which invoke the original javaws with -wait and delete the JNLP file afterwards. This must be installed by the user.

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