XApi - Jre SuperPom
· This is the main aggregator for all jre submodules.
It will contain all of the default implementations for all java runtimes,
and leave extension points for any cross-platform differences between
restricted platforms, like android, appengine or servlet environments.
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 xapi-jre-parent-0.5.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.