java.lang.ClassNotFound and ClassNotDefFoundError are different but what if my classes are in classpath?


  • ClassNotDefFoundError is thrown if a class definition of the hierarchy is not located by the classloader
  • ClassNotFound if the file or class can not be found in classpath. Remember only some servletrunner can open jar files, so having jar files in a directory without having them explicitely in classpath do not help much. You must have the name of jar file in CPath.

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