In any other case you may easily miss out on just one line you don't need and obtain The end result which DrStrangeprk mentioned. all classes and interfaces in the superclass hierarchy (e.g. see Java course is current in classpath but startup fails with Error: Could not obtain or load https://pantip53849.ampblogs.com/indicators-on-uninterruptible-power-supply-you-should-know-70497931