QualInsight Cobertura Mojo
· Cobertura maven plugin that separates UT / IT / overall coverage reports, allows single tests execution and takes care of reports conversion to SonarQube generic test coverage format.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window qualinsight-mojo-cobertura-2.0.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.