Question

To import DLL into Eclipse Java project, I checked the “java.library.path”

String path = System.getProperty("java.library.path");
System.out.println(path);

One of the path values was equal to C:/Windows/System32. Therefore I saved myAPI.dll in C:/Windows/System32. Then I called System.loadLibrary:

System.loadLibrary("myAPI.dll");

And got the error message:

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: Expecting an absolute path of the library: myAPI.dll
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)

BTW, I tried to put my DLL file in different other directories that was mentioned in path. But each time I got the same error message. How to solve this problem?

Answer 1

Don’t put “.dll” at the end of your library. That is a Windows-specific extension, and your call will work on other systems with other extensions, so putting the extension on is incorrect. Just load “myAPI” and, if that’s the right names and other things are as advertised, it will work.