Release Manager for Bitbucket
· This tool collects all issues that were fixed in some/the latest release and assigns them a corresponding milestone. In effect this milestone is basis for your release notes. Includes command line tool and maven plugin.
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 bitbucket-release-manager-parent-1.0.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.