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How to implement end user configurable JVM options



Related to my recent heap space issue,  has anyone come up with a
workable
crossplatform solution for configuring the memory usage of JVM by the
end user? 
I deliver my application in a multitude of ways as follows and would
not like
to have to come up with  five solutions to this very basic problem:

* Java Web Start 

* A Windows executable, a single file C-program that has the jar file
stucked to its
end, the C program launching the JVM and passing itself to the JVM as
jar file

* A Linux script, again the jar file concatenated to the end of script,
and the
script launching the JVM and passing itself as the jar file

* A Mac OS X bundle 

* Executable jar

(For details how this is accomplisehed  check my website at
http://www.sparetimelabs.com and Java Goes Native.)


But the problem is that there is no easy *cross platform* way to allow
the end users
of the application to adjust the JVM parameters. A way that would
preserve the single application/
single executable appearance of the applications (Dock / Task Manager
and  process view wise).

I know this has been discussed before, but is there a solution?


br Kusti






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