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    Look if your classpath is correct, and check if the versions of your libraries match the version you described in your pom.xml

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HelloWorld (wrong name: com/sun/jna/examples/HelloWorld)
java.lang.NoClassDefFoundError: com/sun/enterprise/deployment/archivist/MemoryMappedArchive	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(	at	at	at$100(	at$	at Method)	at	at java.lang.ClassLoader.loadClass(	at sun.misc.Launcher$AppClassLoader.loadClass(	at java.lang.ClassLoader.loadClass(	at java.lang.ClassLoader.loadClassInternal(	at	at	at	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(	at java.lang.reflect.Constructor.newInstance(	at java.lang.Class.newInstance0(	at java.lang.Class.newInstance(	at	at	at