bom
· "This artifact ensures usage of compatible versions across imported SDK modules. For more information, see https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#bill-of-materials-bom-poms"
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 bom-4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
