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java.lang.ClassNotFound and ClassNotDefFoundError are different but ..

 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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Cédric Walter

I worked with various Insurances companies across Switzerland on online applications handling billion premium volumes. I love to continuously spark my creativity in many different and challenging open-source projects fueled by my great passion for innovation and blockchain technology.In my technical role as a senior software engineer and Blockchain consultant, I help to define and implement innovative solutions in the scope of both blockchain and traditional products, solutions, and services. I can support the full spectrum of software development activities, starting from analyzing ideas and business cases and up to the production deployment of the solutions.I'm the Founder and CEO of Disruptr GmbH.