How to run a server JAR file with RMI, directly from within Java code in that same JAR file

Question

I am trying to deploy a jar file on a tomcat server and initialise RMI. For this I am using the following command--

 java -jar -Djava.security.policy=[rmi.policy file path] server.jar [server_ip] [port]

Now, I want the above initialisation and RMI Policy file, and port (for RMI) to be directly done by Java code within the same Jar file.

How do I do this? Also, can I use a URL instead of the IP address?

Answer 1

java.security.policy is a system property, and can be set with System.setProperty(). You don't need to set command line arguments from within the code, as you are just talking to yourself: just use those values in the appropriate places.