Alternative to servicewrapper for java?

I've used ServiceWrapper a few times in the past, however, the dual license is somewhat complex for commercial products (generally you have to pay them). Are there are fully FOSS alternatives with similar functionality?

What are system Java wrappers?

The Java Service Wrapper is an application developed by Tanuki Software, Ltd. It is a utility program that allows an application such as a JVM to run as a Windows service or UNIX daemon.

What is a wrapper server?

Server wrappers are systems that do not modify the Minecraft server or its data files, but instead read its console output and supply console commands in order to add some additional functionality. This means that they will usually work with any version of the server software. Name.

YAJSW seems to be the best alternative, though I have not yet completed my evaluation.

Try Apache Procrun. It's what Tomcat uses on Windows. There is also Apache jsvc for Unix; they are both part of a parent project called Apache Commons Daemon.