JDD
===

To add new functions:
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- Add Java wrapper method to JDD.java
- Add native method prototype to JDD.java
- javac jdd/JDD.java
- javah -jni jdd.JDD -o jdd/JDD.h
- Add C++ wrapper to jdd.cc (get prototype from jdd/JDD.h)
- cd jdd
- make clean
- cd ..
- make