Running multiple JVMs

Question

How do you run multiple JVMs on a single machine? How do you call methods in a different JVM?

Answer 1

There are several insightful answers here, but something that interests me the driving requirement for running multiple JVMs. Why do you believe you need to do this? If you are looking for parallel processing, you might want to consider a multi-threaded application as opposed to running multiple JVMs. Since each JVM could very likely require significant resources and you'd like to have communication between paths of execution, this may very likely be a better solution for your needs.