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Re: J option for jar file

At 12:23 PM -0700 8/28/06, frank schmittroth wrote: 
If I launch my java application using:

java -Xmx128m MyJavaProgram

it works okay.

However, if I first create a jar file using:

jar -J-Xmx128m -cvmf manifest   MyJavaProgram.jar    class files....

and then double click on the resulting MyJavaProgram.jar, I get an out-of-memory error. The -J option doesn't seem to pass the memory request to the JVM. My Activity Monitor confirms this. For small cases, my program works okay.

I've tried googling and searching this archive without finding an answer.

Although I'm writing the program under OS X, I really want to use the jar file under Windows XP.

Any help would be appreciated,
frank

To the best of my knowledge, there's nothing in the jar specification that allows JVM parameters like the -X switch to be automatically obtained from the jar file. See <http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html> for information. If you're trying to accomplish this, I'm pretty sure you'll have to find an alternate approach.

= Steve =
--
Steve W. Jackson
Montgomery, Alabama
http://homepage.mac.com/stevejackson/
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