When using JNI to port in existing C++ code, use C or C++ to interface with JAVA?

Question

The existing codes that I'm trying to port in is implemented in C++. After I write my java wrapper and run javah on the class to get a .h header file, .... is there a "correct" way to do things? Should my corresponding wrapper for my existing code be written in C or C++?

Thanks!

Answer 1

If you use plain JNI, you can write in both C and C++. The important thing is that if you are using C++, the JNI functions (like void Java_com_yourpackage_YourClass_yourMethod(JNIEnv* env, ...) ) must be declared as extern "C" , but AFAIK javah is doing it automatically.