xFunction for Linux - JNI proxy for calling native code functions and APIs from Java.

The xFunction library is the universal solution for integration of Java code with code written in other languages, superior in many aspects to Java Native Interface (JNI). With xFunction, you no longer need to implement those ugly native methods. Instead, you extend and instantiate xFunction classes to Create conventional Java objects representing external functions, data structures, pointers, and callbacks. All necessary data conversions and external function calls are done seamlessly by the xFunction library. Using xFunction, you may invoke any operating system API call or function from any DLL or shared library in a natural and convenient manner. xFunction allows you to achieve the highest levels of code reuse without translating any source code to Java and/or writing cumbersome JNI wrappers.New features: -Added an xFunction constructor that takes function address as int -Added the Pointer.isNull() method. Bug fixes: -Using null as an argument of type CSTRING caused TypesDifferentException -Returning of big structures did not work