Re: Java, jvm, jni

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Re: Java, jvm, jni
by Luke on Monday 09/Aug/2004, @14:38

"I don't have a windows development environment, but as far as I know QtJava works perfectly fine with very little change on windows (and Mac OS X too)."

Wow, that sounds cool, but I guess that would have to buy a Qt Version for Windows. Still, that would be an option.

"I don't really understand Qt/Windows licensing issues too well - if you distribute your small app, you might have to include the QtJava sources to comply with the GPL."

With a bought version of Qt which I guess is not under GPL, do you know whether I would have to include the source of my program? I mean is the code of qtjava completely GPL or is there a way to use qtjava under the same conditions as the commercial Qt Version? If not, then you could possibly try to sell qtjava to Trolltech. This way it could stay GPL under Linux but could be boundled with Qt under a commercial license for Windows? But that's just a thought.

Regarding SWT do you really think that there is no way to combine the CPL and the GPL in any way? Because I would think that QtJava would be a pretty solid foundation for a Qt implementation of the SWT. May be it could be done the same way as NVIDIA integrated their driver into the Linux kernel. I still think having a native looking version of Eclipse would be a real gain for the KDE environment.

Finally, I managed to test some of the demo apps that are in the java-bindings source file ( I couldn't find them on my computer even though I had java-bindings package installed.). A problem that I had with these demos was that I had to set the LD_LIBRARY_PATH. I thought that this would not be necessary since the libqtjava.so is installed in the /opt/kde3/lib dir. But it seems it is necessary.

Anyways, it works now very nicely and I guess I'll use it.
Great work!

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Re: Java, jvm, jni
by Richard Dale on Monday 09/Aug/2004, @21:14

" I mean is the code of qtjava completely GPL or is there a way to use qtjava under the same conditions as the commercial Qt Version? If not, then you could possibly try to sell qtjava to Trolltech. This way it could stay GPL under Linux but could be boundled with Qt under a commercial license for Windows? But that's just a thought."

If there was sufficient demand for a commercial version of QtJava I would happy to dual license it (with Trolltech's permission as normally you can't change from the GPL version of some Qt software to issue a commercial version). But there hasn't been any real demand so far..

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