EclipseLink 2.7.0 and JPA API 2.2.0 - signature mismatch

Question

When running a project built by maven with the following dependencies:

        
            org.eclipse.persistence         


        

Answer 1

Because I could not find an answer for this problem when only using a Tomcat and this thread is often linked with this problem, I am going to post my solution here:

Since the signature is in the MANIFEST.MF you can change the signatures in the .jar files using 7zip or WinRAR to open them or simply delete them from the META-INF files of both .jar's and then import the changed files to your IDE.

A useful thread for the Signature-Mismatch-Problem is this thread: Java SecurityException: signer information does not match