prep-buddy - Data Preparation at Scale
· A Scala / Java / Python library for cleaning, transforming and executing other preparation tasks for large datasets on Apache Spark
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 prep-buddy-0.5.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.