Java Runtime.getRuntime().exec() alternatives

Question

I have a collection of webapps that are running under tomcat. Tomcat is configured to have as much as 2 GB of memory using the -Xmx argument.

Many of the webapps ne

Answer 1

Try using a ProcessBuilder. The Docs say that's the "preferred" way to start up a sub-process these days. You should also consider using the environment map (docs are in the link) to specify the memory allowances for the new process. I suspect (but don't know for certain) that the reason it needs so much memory is that it is inheriting the settings from the tomcat process. Using the environment map should allow you to override that behavior. However, note that starting up a process is very OS specific, so YMMV.