Frontend Plugins
· This Maven plugin lets you install Node/NPM locally
for your project, install dependencies with NPM,
run Grunt tasks, and/or run Karma tests.
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 frontend-plugins-1.13.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.