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3 Replies Latest reply: Jun 19, 2012 3:34 AM by 944401 RSS

deployJava launch embeddedJnlp

944401 Newbie
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We're using a eLearning service called Elluminate. They give us JNLP in which we enter our students usernames.

Problem is that KIDS are playing with the JNLP files in notepad...

I know that Java is planning to give a way to launch JNLP from Base64 embedded content (see here:, but in the meantime, do you have any idea how could we encrypt it?

Maybe a JNLP launched from our browser, that will have as a parameter the Base64 content, and the JNLP will decrypt it and open the REAL jnlp?

We're really lost.

Please advise, and excuse my bad english...

Thank you!
  • 1. Re: deployJava launch embeddedJnlp
    817614 Explorer
    Currently Being Moderated
    Note that the CR is already closed and the support for embedded JNLP is already in JRE 7.
    Yes, the whole JNLP content (base-64 encoded) could be embedded in HTML applet tag as applet param "jnlp_embedded".
  • 2. Re: deployJava launch embeddedJnlp
    944401 Newbie
    Currently Being Moderated
    Thank you,

    But as far as I see the deployJava function from [|] could not use jnlp_embedded. Meaning, you could use jnlp_embedded only if you use it as an applet, but we use it as JNLP that launches Java Machine externally.

    Also, from what I see the CR is not closed, but more as a "request for enhancement" that has been approved. Otherwise, you have an idea how to launch external JNLP from jnlp_embedded content?

    I think that the best idea would be to open a JNLP with the content of the REAL jnlp as jnlp_embedded in a parameter. This jar would decrypt the jnlp_embedded and launch the real JNLP.

    My purpose is simply not to give people a way to modify JNLP, which make use crazy since people keep on changing the parameters in notepad....

  • 3. Re: deployJava launch embeddedJnlp
    944401 Newbie
    Currently Being Moderated
    OK, I've found a way, I'm using the dtJava ( and they have this option in .launch.

    Thank you!


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