Examine command line and / or the CLASSPATH natural environment variable that's in influence any time you operate the java command. Test that the Listing names and JAR file names are appropriate. At Laptop Guideline we know power – Indeed we keep issues switched off when not in use – https://paxtoncecbz.laowaiblog.com/32841340/the-basic-principles-of-ups-uninterrupted-power-supply