Null pointer in ClassWorld.getImportRealm()

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Null pointer in ClassWorld.getImportRealm()

by Alexander Zynevich-2 :: Rate this Message:

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Hello,
        well I am playing with ClassWord/Realm concept
        and have found that
         importRealmMappings is never initialized in ClassWorld, however
it is accessed in getImportRealm and as result I get

Exception in thread "main" java.lang.reflect.InvocationTargetException
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at classworldtest.Main.main(Main.java:40)
Caused by: java.lang.NullPointerException
         at
org.codehaus.plexus.classworlds.realm.ClassRealm.getImportRealm(ClassRealm.java:297)
         at
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromImport(ClassRealm.java:306)
         at
org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:39)
         at
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:208)
         at
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:202)
         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
         at classworldtest.C1.s(C1.java:18)
         ... 5 more

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