"JNIPort is a Smalltalk library which allows Java code to be invoked from Smalltalk."
According to Joachim the JNIPort (Dolphin ST, VisualWorks) is prepared to have a possible port to Squeak (see http://astares.blogspot.com/2008/04/javaconnect-java-assmalltalkvalue.html)
Anyone interested?
Bye Torsten