JNA UnsatisfiedLinkError异常

Question

I am trying to deploy my application that invokes native calls using JNA library, but I get the following exception. Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'myCustomDLL': Native library (win32-x86-64/myCustomDLL.dll) not found in resource path ([myproject/target/classes/, ...some jars...])

What do I need to do in order to invoke the function correctly?

Any help much appreciated

Answer 1

You must put your dll library (with native code) on application java.library.path.

See : http://examples.javacodegeeks.com/java-basics/java-library-path-what-is-it-and-how-to-use/

Edit:

Post your project layout here. And how you run your app.

Answer 2

Check whether the DLL is executable. Check the dependant DLLs are all executable.

With windows explorer, right click on DLL -> property -> security and verify execution rights.

Answer 3

Actually I found the answer to this. Basically, I needed to install Microsoft Visual C++ Redistributable package to install all the necessary DLLs needed for JNA to work. Thanks for other responses to this question.