How to Correctly Set the Native Library Path in an Eclipse Project?

How to Specify the Native Library Path for an Eclipse Project

When working with Java libraries that rely on OS-specific files like .dll, .so, or .jnilib, you may encounter issues where your application exits with an error message indicating that these files are not found. This can be frustrating, especially if you're not sure how to configure the library path for your project.

Don't Modify the Library Path Directly!

Contrary to common practice, it's not advisable to modify the java.library.path directly in Eclipse. Eclipse takes care of constructing the library path for you, and interfering with this process can lead to unexpected errors.

Set the Native Library Location

Instead, focus on configuring the native library locations for the specific libraries within your project:

1. Right-click on your project and select Properties.
2. Go to Java Build Path and select the Libraries tab.
3. Expand the .jar file that depends on the native library.
4. Click on Native library location and select Edit.
5. Use the folder chooser dialog to specify the location of the native library.

Conclusion

By following this approach, you can ensure that the native libraries are found by your application without the need for modifying the Java library path. This method is reliable and avoids potential conflicts with Eclipse's own library path management.

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