f63a504e_anguage__Round_two___JavaWorld__Description
[Scripting language] Jacl [Version number] 1.3.1 [Description] 
The Java implementation of the Tcl interpreter. If you want to use Tk constructs in your scripts to create user interface objects, take a look at the Swank project for a set of Java classes that wrap Java's Swing widgets into Tk. Jacl has been around for quite a while and is still being actively worked on.
Choosing a Java scripting language: Round two | JavaWorld
Description