Yes, it is an optional extension and I do provide it. I have a few
thousand mac customers and this is the only one to ever report this
issue so the issue is something to do with their configuration,
possibly installtion of some other software but Im not very au fait
with tyhe internals of how java is configured on a Mac
More likely it's a straightforward classpath issue.
How is your app deployed to a user's machine? As an app-bundle, a
double-clickable jar, a JNLP app, or something else? Is there a URL
where we could download it and find out for ourselves?
Do you have a Mac to test things on? I can give you procedures to
probe the possible classpath issues, but they use non-Java Mac apps
running on a Mac.
My suspicion is that somewhere in the pathname leading to your
installed app on this customer's machine, there is a directory name
that contains a "!" or a ":". The ":" would appear in the Finder as
a folder-name with a "/" embedded in it. For example, "A/V" is a
common abbreviation for audio/video apps that will be problematic for
a Java-based a/v app.
To get the Unix pathname of a folder or file, open a new untitled
document in TextEdit.app. If it's Rich Text, choose "Make Plain
Text" from the Format menu. The next step won't work in a Rich Text
document, only a Plain Text one.
Next, go to the Finder and navigate to where your app is installed.
Drag the app's icon onto the blank text area of the plain text
untitled document and drop it. The pathname should appear.
Finally, inspect the pathname for ":" or "!", or have the customer
copy and paste it in an email to you.
You should try this yourself, FWIW. That is, put your app in a
folder with a "!" in it and try to run it. Same for a folder with a
Finder-name that has a "/" in it. Also try the TextEdit.app
procedure and see how it works when your app is in one of these folders.
-- GG
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