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not permitted to compile only for learning?

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Joined: 2007-05-08

I download the jck from, but it says: o other uses are permitted including compiling, executing, or redistributing the sources. Why? I want to see the result of running the testcases, and I just want to learn, not for any benefit?

Does any people know the reason and know how to compile the jck?

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Joined: 2005-05-27

You can find an answer in Graham Hamilton's Blog:

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In order to keep the license simple, we have restricted it to be strictly "read only". I want to emphasize this. The license does not allow you to compile or run the tests (If you want to do that, you can get a different, more complicated, license, see below). We did this because otherwise the license would have blossomed into a twenty page legal document. But we have tried to make sure the license meets the reasonable needs of developers who want to evaluate the JCK sources:

* It's available at zero cost, through a click-through license.
* There is no "tainting". Once you delete your copy of the JCK, you aren't constrained in your future actions. To try to make this really clear, we included a section explicitly granting what the lawyers call "residual rights", which basically means that stuff that sticks in your head is OK to use in the future.
* You can publish feedback and comments publicly.

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