This class represents a JavaScript callback function. Callbacks can either be plain JavaScript functions, in which case they are invoked in their original worker, or an object containing properties called `module` and `name` specifying a function with the given name exported by the given module, in which case it can be invoked on any worker.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.