Isn't GPL enough to make a software free as in free speech?

Posted by user61852 on Programmers See other posts from Programmers or by user61852
Published on 2013-06-13T13:44:34Z Indexed on 2013/06/28 22:28 UTC
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licensing

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open-source

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gpl

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free-software

I have read people rebutting the fact that a certain software is free as in free speech, even when it is licensed under GPL.

Some say Java isn't free because to obtain a professional certification you must get it from Oracle.

Some say Java JDK is not free to re-distribute.

Some people even say the openJDK is not free or open.

But Java is officially GPL.

Doesn't GPL explicitly mean you are free to re-distribute ?

Isn't GPL enough to make a software free as in free speech ?

How can Java be both GPL and not-free as in free speech ?

Is there is any license that trully makes a software free beyond any possible subjetive point of view?

EDIT: These question is not about names or trademarks, it's about the code.

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