Can't obtain static method fromNative(Method, Object) from class com.sun.jna.Native

Question

I'm using the JNA's com.sun.jna.NativeLibrary class in order to load the VLCJ native library. I'm working on an armv8(aarch x64)-based linux device. Below is my code, note that i am using the latest JNA version jna-4.5.2:

NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(), Constants.DEPLIB_OUTPUT_DIRECTORY);
Native.loadLibrary(RuntimeUtil.getLibVlcLibraryName(), LibVlc.class);
LibXUtil.initialise();

First i was getting this error:

java.lang.UnsatisfiedLinkError: JNA native support (com/sun/jna/linux-aarch64/libjnidispatch.so) not found in resource path

After a quick search i found that i must copy the jna native lib directory from inside the jar into the jvm lib path, where the jna jar library has pre-built libraries for almost all known systems as shown in the image below:

jna-4.5.2 internal content.jpeg

After doing that, the above exception disappeared but another one came up:

java.lang.UnsatisfiedLinkError: Can't obtain static method fromNative(Method, Object) from class com.sun.jna.Native

the exception is saying that it couldn't find the method fromNative(Method, Object) in the class com.sun.jna.Native however after decompiling this class i found that the method already exists.

I'm out of ideas know, any help would be highly appreiated, thanks!.

Answer 1

solve by:

1. undo this step:

After a quick search i found that i must copy the jna native lib directory from inside the jar into the jvm lib path...

2. remove all jna modules (jars) from my project
3. download and link the following jars into my project: jna.jar jna-platform.jar linux-aarch64.jar