How to set the java.library.path from Eclipse

Question

How can I set the java.library.path for a whole Eclipse Project? I'm using a Java library that relies on OS specific files and need to find a .dll/.so/.jnilib. But the Application always exits with an error message that those files are not found on the library path.

I would like to configure this whole project to use the library path. I tried to add the path as a VM argument to some run configurations in eclipse but that didn't work.

Answer 1

For a given application launch, you can do it as jim says.

If you want to set it for the entire workspace, you can also set it under

Window->
  Preferences->
    Java->
      Installed JREs

Each JRE has a "Default VM arguments" (which I believe are completely ignored if any VM args are set for a run configuration.)

You could even set up different JRE/JDKs with different parameters and have some projects use one, other projects use another.

Answer 2

Sometime we dont get Java Build Path by directly right click on project. then go to properties....

Then Click on java build path

Click on tab add external jars and give path of your computer file where u have stored jars.

Answer 3

Another solution would be to open the 'run configuration' and then in the 'Environment' tab, set the couple {Path,Value}.

For instance to add a 'lib' directory located at the root of the project,

    Path  <-  ${workspace_loc:name_of_the_project}\lib

Answer 4

I'm using Mac OS X Yosemite and Netbeans 8.02, I got the same error and the simple solution I have found is like above, this is useful when you need to include native library in the project. So do the next for Netbeans:

1.- Right click on the Project
2.- Properties
3.- Click on RUN
4.- VM Options: java -Djava.library.path="your_path"
5.- for example in my case: java -Djava.library.path=</Users/Lexynux/NetBeansProjects/NAO/libs>
6.- Ok

I hope it could be useful for someone. The link where I found the solution is here: java.library.path – What is it and how to use

Answer 5

you can add vm argument in your eclipse.

Example : -Djava.ext.dirs=cots_lib

where cots_lib is your external folder library.

Answer 6

If you are adding it as a VM argument, make sure you prefix it with -D:

-Djava.library.path=blahblahblah...