OSGi Blueprint 1.0
· This feature enables support for deploying OSGi applications that use the OSGi blueprint container specification. With the OSGi Applications support in WebSphere Application Server, you can develop and deploy modular applications that use Java EE and OSGi technologies.
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 blueprint-1.0-23.0.0.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.