akka-stream-tests-tck-experimental
· This module of Akka is marked as experimental, which means that it is in early access mode, which also means that it is not covered by commercial support. An experimental module doesn't have to obey the rule of staying binary compatible between minor releases. Breaking API changes may be introduced in minor releases without notice as we refine and simplify based on your feedback. An experimental module may be dropped in major releases without prior deprecation.
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 akka-stream-tests-tck-experimental_2.11-2.4.2-RC2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.