Ben Galbraith wrote:
>I built an OS X application bundle using the JavaApplicationStub and so
>forth. It worked for a while, then I made some changes, and it stopped
>working (i.e., launching the app when I double-click the icon). I can't
>figure out why. I put logging statements in the first lines of my main
>method, but they never arrive in the console. I've studied the Info.plist
>file, I've tried launching it using "java" from the command-line (worked
>fine), reduced it down to the smallest set of data I thought I could (one
>JAR, one class) and no matter what I try, I can't get it to launch.
On a double-clicked launch failure, are there any messages in the console log?
See /Applications/Utilities/Console.app, the window labeled console.log.
If it works from the command-line, the most likely possibility is a
malfunctioining Info.plist. Looking at the Info.plist you posted in a
later message, the first thing that strikes me is "Holy crap, that's a long
class-path". The problem might be that you're exceeding some limit on
classpath, what with the expansion of $JAVAROOT and all those elements.
Long classpaths can be avoided by using the Java extensions mechanism,
which loads all jars in a directory without you having to list every file.
The way to do that in an app-bundle is to define this Java property:
java.ext.dirs
to have this value:
$JAVAROOT:/System/Library/Java/Extensions:/Library/Java/Home/lib/ext
Search the list archives for keywords java extensions for further information.
Another strategy is to coalesce the myriad jars into a smaller number,
possibly 1, and then use the normal ClassPath array key.
Yet another possibility is to use the Class-Path attribute in your app's
jar manifest, which is a list of relative URLs to other jars. This works
in command-line and bundled apps. It's a standard part of manifest
support. Search the list archives for keyword manifest for additional
information.
-- GG
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