Scripting Framework For Java 1.5?

Dear lazyweb,

Do you happen to know if the scripting engine stuff that will be part of Java 1.6 is available for previous versions anywhere? I know there’s things like bean scripting framework, rhino etc but would like to use the one standardized API to drive things if possible. I haven’t seen much information come through about the scripting APIs which is a bit surprising actually.

Thanks!