JNI Hello World

• http://mrjoelkemp.com/2012/01/getting-started-with-jni-and-c-on-osx-lion/

Tutorial suggests the below, but neither dirs exist on b2mc:

-I/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Headers \
-I/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/JavaVM.framework/Versions/A/Headers \

javac HelloWorld.java       # .java to .class

javah -jni HelloWorld       # .java to .h

g++ \
    -I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers \
    -c HelloWorld.cpp          # .cpp to .o  linking against jni.h

g++ -dynamiclib -o libhelloworld.jnilib HelloWorld.o

java HelloWorld

rm *.class *.o *.jnilib      # remove derived files