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Loading JNI libraries on the Mac

I’ve been trying to build a simple JNI library from C code on the Mac (Snow Leopard). Compiling it seems pretty straightforward, but the Java library loader isn’t happy. I can call

System.load("/tmp/jnitest.jnilib");

which works fine, or

System.loadLibrary("jnitest")
// or
System.loadLibrary("jnitest.jnilib")

with java.library.path set to “/tmp”, which doesn’t work.

I’ve given up trying to understand it for now. I spent way too long googling on the Intertubes for information, which points to problems with Java 1.6 on Snow Leopard, but I didn’t find anything that was even consistent with this behavior. On the other hand, I can at least make progress for the moment, since the JNI calls work.

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This entry was posted on Monday, January 18th, 2010 at 4:28 pm and is filed under Programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Loading JNI libraries on the Mac”

  1. Fallik says:
    February 9, 2010 at 1:44 pm

    If the libray name is “jnitest” the library filename should have a prefix and a suffix, ie: libjnitest.jnilib

    So try to use:

    System.load(”some-path/libjnitest.jnilib”);

    OR

    System.loadLibrary(”jnitest”);

    In this case you have to add the libjnitest.jnilib file in the java library path (f.e.: /usr/lib/java/)

    Hope it helps

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