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JNI under Linux  RSS feed

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I'm trying to prove a simple java call to a library file compiled in C. I have both the java class file(which includes main) and the library file in the same directory. The problem is that I keep getting an UnsatisfiedLinkError claiming it can't find the library file. I have tried setting the java.library.path in the java call, but it doesn't seem to make any difference. I'v tried setting it to "=." and I've tried setting it to the complete path. Neither seems to work.
My library file is called "libTB4H.so". Does the extension matter under linux? All the JNI I have done before was under Windows. What permissions are required for a lib file? Do I need to include the extention in the loadLibrary call I make?
Any help or pointers would be greatly appreciated.
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