Interoperability between languages

CodeMesh (Java C++)

Roguewave Leif

Cygnus Java C++ integration

Jawin (using dlls in Java) project

JNI (Java Native Interface)

JGuru JNI Faq (Java Native interface)

JNI in wikipedia

JNI how to on Unix

IBM JNI tutorial

Afficher bonjour avec JNI

Using Jace (formerly easy JNi from Alphaworks) (see Javaworld paper)