Can I set Java max heap size for running from a jar file?

Question

I am launching a java jar file which often requires more than the default 64MB max heap size. A 256MB heap size is sufficient for this app though. Is there anyway to speci

Answer 1

There are many ways of doing it:

You can by having another Jar file which triggers your main Jar.

Or, have a batch file which will start your jar. But be careful, if downloaded from say net, the user will have to set permissions for the script to be runnable

Build an installer. On Mac, using the Oracle Java App bundler for Java 7, Apple App bundler for Java 6 build the .app file. You still cant redistribute it as the necessary permissions wont be set. Build a dmg for the app file. This can be used for distribution. A similar installer for Windows

The third technique would be the best, as you can then package the dependencies well, set all JVM arguments etc