i18n4k-gradle-plugin
· i18n4k is a multiplatform (JVM, JS, native) library and code generator for Kotlin to handle internationalisation (i18n) in your program.
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 de.comahe.i18n4k.gradle.plugin-0.6.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.