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    Expert tip

    This happens when you try to instantiate a class that can't be instantiated, either because the class object is abstract, an interface, an array class, a primitive type, void, or because the class has no nullary constructor.

Solutions on the web

via Icesoft by StevoFFM, 1 year ago
java.lang.InstantiationException: com.icesoft.faces.component.NamespacingViewRoot
via Oracle Community by 843842, 2 years ago
java.lang.InstantiationException: com.icesoft.faces.component.NamespacingViewRoot	at java.lang.Class.newInstance0(	at java.lang.Class.newInstance(	at org.apache.myfaces.shared_impl.util.ClassUtils.newInstance(