java.util.ServiceConfigurationError: Couldn't instantiate class de.dhbw.fourwins.strategy.EasyStratFactory

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'java.lang.String java.net.URL.getProtocol()' on a null object reference

      at java.net.URLClassLoader.getPermissions()
    2. Java RT
      URLClassLoader.findClass
      1. java.net.URLClassLoader.getPermissions(URLClassLoader.java:614)
      2. java.security.SecureClassLoader.getPD(SecureClassLoader.java:140)
      3. java.security.SecureClassLoader.defineClass(SecureClassLoader.java:93)
      4. java.net.URLClassLoader.access$600(URLClassLoader.java:55)
      5. java.net.URLClassLoader$URLJarHandler.createClass(URLClassLoader.java:364)
      6. java.net.URLClassLoader$URLJarHandler.findClass(URLClassLoader.java:303)
      7. java.net.URLClassLoader.findClass(URLClassLoader.java:748)
      7 frames
    3. dievierlustigen5.dhbw.de
      StrategieClassLoader.loadClass
      1. dievierlustigen5.dhbw.de.a4wins.strategy.StrategieClassLoader.loadClass(StrategieClassLoader.java:56)
      1 frame
    4. Java RT
      ServiceLoader$ServiceIterator.next
      1. java.lang.ClassLoader.loadClass(ClassLoader.java:469)
      2. java.util.ServiceLoader$ServiceIterator.next(ServiceLoader.java:214)
      2 frames