Moneris Unified Java JAR Corrupted?

I'm attempting to use the Java JAR available in the GitHub eCommerce Unified API, but I belive it may be a corrupt file.  My IDE does not recognize it as a JAR, and I'm unable to unjar the contents to confirm. 

Does anyone else have this problem?

github.com/.../eCommerce-Unified-API-Java

  • Apparently, downloading the JAR as a file in a browser is the issue. I did a pull request on the project, used that JAR, and it works. NO idea why.