Trying to use DLL from Java (JNA). Unable to load library exception

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I had exactly the same problem with loading a DLL, I solved it in this way:

  • As Christian Kuetbach said, check if the simpleDLL you are using is compatible with your processor’s architecture, a 32-bit DLL won’t work on a 64-bit machine, and also a 64-bit DLL won’t work on a 32-bit machine.

  • If the DLL is compatible, then the problem may be in your java library path. I put my DLL into the user.dir directory and then I used this code:

    Set Java library path to user.dir or maybe another path you want:

     String myLibraryPath = System.getProperty("user.dir");//or another absolute or relative path

 System.setProperty("java.library.path", myLibraryPath);

    Load the library:

     System.loadLibrary("libraryWithoutDLLExtension");

It worked for me, try it and tell me if it works for you.

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