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Re: native JDK on Dragonfly BSD



Found the answer (see the end)! But in response..

Greg Lewis wrote:

On Fri, Jul 30, 2004 at 12:26:51PM -0700, Andrew Houghton wrote:
I've been playing around with DragonFly BSD for a few weeks, and thought I'd try compiling a native JDK from ports. Surprisingly enough (more on that later) almost everything seems to work. Admittedly, I'm not doing deep testing -- but the plugin, the JVM, and javac have handled everything I've thrown at them, including IntelliJ IDEA, various web applications, and things like HPJmeter.

The one place I *am* running into problems is with Java Web Start. When I try starting it I get:

Java Web Start splash screen process exiting .....
Bad installation. No JRE found in configuration file: No such file
or directory

I assume that it works on FreeBSD?  I must admit I've never tried it.
Sure does.. and at least one mission critical part of my work environment uses it, surprisingly enough.

I traced this message down to line 243 of /deploy/src/javaws/src/share/native/launcher.c; the helpful comment on line 241 or so says "This should never happen."

The closest bug report I found was from Evan Easton:

http://lists.freebsd.org/mailman/htdig/freebsd-java/2003-December/001403.html using his script I was able to get javaws to start, but i still can't get any of the demo apps to actually run.

What errors do they produce?
It wasn't clear that they did produce errors.. they just never started, and the java console didn't give me any info.

Now, looking at the patchset there's no mention of DragonFly (not surprisingly). The reason I was surprised that most things work is that the patch seems to be making many choices based on system type, and it's just not clear whether DragonFly defines anything close to the expected system types.

I would guess that DragonFly still defines __FreeBSD__ (probably as 4) so
tha tmost things will just work.

So, I'm poking through the patchset and seeing what I can do, but someone actually familiar with this stuff (i.e., Greg or Alexey) could do this about a million times faster than I could, I think..

Assuming we had a DragonFly system, maybe so :).

Is there any chance of getting DragonFly into the list of "officially" supported systems for the native JDK?

Yes.  The easiest way is to do what you're doing and submit patches
when you're done.  All other ways involve waiting till someone else
does it :).

I'll try and have a quick look if I get a chance and let you know if I
see anything obvious, but its going to be a little hard without a DragonFly
system to test on.


Martin Hellwig, over on the DragonFly bugs list, found the right answer -- simply by switching the OS name in the ~/.java/.deployment/deployment.properties file from 'FreeBSD' to 'DragonFly', everything seems happy. I should have caught this myself -- very embarrassing.

With this known, it shouldn't be too difficult to find what needs changing where and provide a patch -- I'll see what I can do this week.

- a.