Download dev.lajoscseppento.ruthless.spring-boot-application : dev.lajoscseppento.ruthless.spring-boot-application.gradle.plugin JAR file - All Versions:
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 dev.lajoscseppento.ruthless.spring-boot-application.gradle.plugin-0.7.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.