Can I use Delphi to program to the Java Native Interface? From reading Essential JNI it seems possible if you make sure you are using the C calling convention. Anyone done t
Besides JNI there is also Java Native Access (JNA) which requires much less setup (no C header files) so your Delphi DLL functions (and callbacks) can be used directly from Java:
JNA Homepage
JNA provides Java programs easy access to native shared libraries (DLLs on Windows) without writing anything but Java code—no JNI or native code is required. This functionality is comparable to Windows' Platform/Invoke and Python's ctypes. Access is dynamic at runtime without code generation.
you can check these projects and articles to use the JNI (Java Native Interface) and delphi