Rhino 编辑

Rhino is an open-source implementation of JavaScript written entirely in Java. It is typically embedded into Java applications to provide scripting to end users. It is embedded in J2SE 6 as the default Java scripting engine.

Rhino downloads

How to get source and binaries. 

Rhino documentation

Information on Rhino for script writers and embedders.

Rhino help

Some resources if you get stuck.