UnsatisfiedLinkError，但是库在路径中

Question

I'm a little confused by this error. I'm new to Java and the error seems pretty self explanatory, but I've checked my paths (even defined my own) and it still fails to find this library. Is there something I'm doing wrong? See directory screenshot and error screenshot below:

UPDATE

UPDATE 2

If I create a new NetBeans project this works fine. Same code and everything. If I create new IntelliJ project I get this error above. I must be missing something in IntelliJ

UPDATE 3

Found the solution. Adding dependencies is a bit different in IntelliJ. Thanks all for the help.

http://www.jetbrains.com/idea/webhelp/configuring-module-dependencies-and-libraries.html

Answer 1

Obidisc4j is a .jar file. You just dont see its extension in the explorer. Regular jar files are not loaded by System.loadLibrary. They are automatically loaded by the JVM's classLoader.

Answer 2

You are using a native library. It doen't matter if that library is in the classpath. There are 4 ways you can make the Java runtime load your shared library at runtime:

1. Call System.load to load the .so from an explicitly specified absolute path.
2. Copy the shared library to one of the paths already listed in java.library.path
3. Modify the LD_LIBRARY_PATH environment variable to include the directory where the shared library is located.
4. Specify the java.library.path on the command line by using the -D option.

Answer 3

Seems like your application is trying to find out a obidisc4j.dll (for Windows) or obidisc4j.so (for Linux). The file must be present on the PATH (but not the classpath). If you are not sure what PATH is your Java application searching in, you can write the following statement, before the point where the exception takes place, to find out the PATH.

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

This will tell you about the paths where your DLL or SO file should be placed. You just need to place the file in ONE of those N-paths.