Apache Beam :: Runners :: Reference
· A Pipeline Runner which executes on the local machine using the
Beam portability framework to execute an arbitrary Pipeline.
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 beam-runners-reference-parent-2.4.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.