JNIPort for VA Smalltalk is available from VAStGoodies.
JNIPort is a Smalltalk library which allows Java code to be invoked from Smalltalk. It acts as a bridge between the world of Smalltalk objects and a Java Virtual Machine (JVM) where Java code is executing.
JNIPort was originally written by Chris Uppal for Dolphin Smalltalk and published under a liberal license which permits its use in commercial and non-commercial software. Joachim Geidel has ported JNIPort to VisualWorks and Pharo/Squeak. The Pharo/Squeak version was used for bringing JNIPort to VA Smalltalk.