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Re: [udig-devel] A second Release candidate (and now the third)
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I don't think that would be necessary, and I don't know what I'd do
anyways (just what IS the JRE - file, folder, ?).
After looking around a bit more on Apple Java mailing lists and
documentation, I think there is one way I could do it short of having
the whole Eclipse setup and udig source. I'm pretty sure it's that
udig executable that's using /usr/bin/java to start things up instead
of letting the .app package configuration tell the system which Java
to use - the Info.plist setting is supposed to specify this, but it's
being ignored.
As a test I ran startup.jar from the CLI with the full path to Java 5
and it worked (and it didn't background with no menubar like my last
attempt). I found something that Azureus uses to reset system
limits, it's a shell script that runs ulimit, then runs the actual
application. It is supposedly possible to create an application
bundle from a jar - I could have the script force Java 5 on startup.jar.
Here's info about this 'prelude' method:
<http://www.amug.org/~glguerin/howto/More-open-files.html>
Speaking of limits, as that page says, the open file limit is pretty
low (I checked and it's still 256 in Tiger). Would uDig benefit from
a higher open file limit? Any other limits that might be of concern?
A question - is the name of 'startup.jar' fixed? The process name is
still coming out as 'java', not 'udig', so if I can get this shell
prelude thing working, I would want to name startup.jar to uDig.jar
at least (maybe even just 'uDig', if the .jar is not needed).
What about any hard-coded relations of the directory structure? So
far I must have everything in the Contents/MacOS folder to work, even
though the Info.plist sets a classpath (I guess the udig app expects
startup.jar and plugins and the others to be in the same folder).
Anything in particular that should be in the classpath? (There are
many jars in the plugins folder and it would be insane to list them
all, maybe there's just one that's essential?). Ideally I would like
to have this directory structure:
uDig.app
Info.plist
MacOS
startup.jar [or uDig.jar or uDig]
setlimits.sh
Resources
configuration
icon128.icns [a Mac-ified version of the icon file found in
a udig jar]
features
Java
[contents of 'plugins' folder]
The Resources/Java folder is the default JAVAROOT (is that a Java
environment variable, or some Apple thing?) for the bundle, and is
difficult to change (ie to Resources/plugins to match udig's
structure). But I can set the classpath to anything in the bundle,
so if configuration, features and plugins must be in the same folder,
I could just leave 'Java' empty.
I noticed it also generates a workspace folder. Not sure what it's
for (my lack of Java knowledge). Where is the default location for
that and is it possible to set another location?
On Aug 9, 2005, at 10:59 PM, Jesse Eichar wrote:
On all the other platforms if there is a JRE directory in the udig
directory that JRE is used. As an experiment maybe you could put a
link to the JRE in the udig directory.
Jesse
-----
William Kyngesburye <kyngchaos@xxxxxxxxxxxxx>
http://www.kyngchaos.com/
Theory of the Universe
There is a theory which states that if ever anyone discovers exactly
what the universe is for and why it is here, it will instantly
disappear and be replaced by something even more bizarrely
inexplicable. There is another theory which states that this has
already happened.
-Hitchhiker's Guide to the Galaxy 2nd season intro
