View Java Class Source Code in JAR file
- 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 metrics-log4j2-4.2.19.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
com.codahale.metrics.log4j2
├─ com.codahale.metrics.log4j2.InstrumentedAppender.class - [JAR]