Showing posts with label UnsatisfiedLinkerError. Show all posts
Showing posts with label UnsatisfiedLinkerError. Show all posts

Wednesday, August 8, 2007

The JNI UnsatisfiedLinkerError saga

Ever try to debug something where the solutions you found on the net does not seem to work in you machine ? Well I had one today.

Its actually related to the rather infamous UnsatisfiedLinkerError when running JNI related applications. My test code compiles OK & the DLL was built successfully. Nonetheless at runtime, said error always pops up.

I tried in vain at numerous compilation options as suggested on forums I found on the net but to no avail ... until I noticed this:




The UnsatisfiedLinkerError actually came from the line:


JNIEXPORT void JNICALL Java_ArrayHandler_returnArray


But since the ArrayHandler is actually in a package called org.semi, an UnsatisfiedLinkerError will arise at runtime. The correct signature would be as follows:


JNIEXPORT void JNICALL Java_org_semi_ArrayHandler_returnArray



Had a great laugh after I discovered this. There goes one day debugging something which should be obvious all along :)

The sample code I did can be downloaded at rapidshare, well, if they haven't deleted it yet :)