In any other case you could potentially very easily pass up one particular line you don't want and obtain the result which DrStrangeprk talked about. all courses and interfaces inside the superclass hierarchy (e.g. see Java class is existing in classpath but startup fails with Error: Could not come across https://bangkokwax70235.weblogco.com/33915578/the-smart-trick-of-uninterruptible-power-supply-ups-that-no-one-is-discussing