Find jvm from Java

Question

How can I find a JVM ( java command, e.g. /usr/bin/java for mac and C:\Program Files\Java\bin\java.exe for Windows) from a Java application?

Reason: I am running an JNLP application that should download and launch other jar. I cannot just load the other jar because it has native libraries which could not be launched as JNLP.

Answer 1

You could figure this out by using the java.home system property, which returns the path to the currently running jvm.

System.getProperty("java.home");

To be truly platform independent, you'd need to combine this with some platform detection to decide whether to append "bin/java" or "bin\java.exe", but it should be reasonably straightforward to do using some of the other system properties.