The JNI tests have been replaced by the Cooja configuration wizard.

The JNI tests assisted in configuring Cooja for compiling and linking 
Java Native Interface (JNI) enabled Contiki libraries. Such Contiki 
libraries are used by Cooja's Contiki Motes: motes simulated at the
operating system abstraction level.

The new configuration wizard is started from inside Cooja, and exercises
the same functionality as the JNI tests. In contrast, the wizard
is directly connected to the current Cooja configuration, removing the
need to migrate the configuration between JNI tests and Cooja.

To start the wizard:
* Start COOJA:
tools/cooja> ant run
* Menu > Settings > Compiler configuration wizard

-- Fredrik Osterlind, fros@sics.se, March 2009