Java FLAC Codec
· jFLAC is a port of the Free Lossless Audio Codec (FLAC) library to Java. This allows Java developers to write programs that use the FLAC files and the FLAC algorithms.
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 jflac-parent-1.5.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.