Moonshine
· Moonshine provides infrastructure commonly found in application containers.
But, unlike containers, it is designed to be embedded inside your application.
It's a modular framework build around Google Guice dependency injection
with uniform logging using SLF4J, easy unit testing and ready to use support for common JavaEE technologies:
JDBC, JPA, JMS, JTA, JMX, Java Servlet API, JAX-RS.
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 parent-1.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.