How create java class object in javascript using RHINO

How create CUSTOM java class object in java-script using 开发者_StackOverflow中文版RHINO..?

We can use classes which is in rt.jar but not other custom class

1. compile class use a package
2. make a jar file
3. set classpath of that jar
4. use importPackage(Packages.)
5. start rhino..
6. now it will work.