How to pass a system property using Wrapper.exe

Question

How do I pass a property to a Java process, started as a Windows service using Wrapper.exe?

The target code calls:

System.getProperty("ADMIN_USERNAME");

Answer 1

You can set certain properties in the wrapper config file, see this link:

http://wrapper.tanukisoftware.org/doc/english/properties.html

I believe you can also configure the wrapper to startup java and pass additional properties using the java "-Dproperty=value" syntax

Answer 2

http://wrapper.tanukisoftware.org/doc/english/prop-java-additional-n.html

You can set "additional parameters" that will go to the JVM (as opposed to your main class), and -DADMIN_USERNAME=gandalf should work there.

wrapper.java.additional.1=-Xrs
wrapper.java.additional.2=-Dprop=TRUE
wrapper.java.additional.3=-DADMIN_USERNAME=gandalf

Update: You must start with additional.1 and count up without gaps (This is a convention for shoe-horning lists into Java properties syntax).

Answer 3

This is a shot in the dark, but have you considered using JMX to communicate with the service? Or is this overkill for what you need?

Yuval =8-)