must be INTERFACE
error: You are trying to generate ViewState for Object. But Object contains non-void method "getClass" with the return type of java.lang.Class<?>.
error: You are trying to generate ViewState for Object. But Object contains non-void method "hashCode" with the return type of int.
error: You are trying to generate ViewState for Object. But Object contains non-void method "equals" with the return type of boolean.
error: You are trying to generate ViewState for Object. But Object contains non-void method "clone" with the return type of java.lang.Object.
error: You are trying to generate ViewState for Object. But Object contains non-void method "toString" with the return type of java.lang.String.
Или только отладка поможет?
Сообщение достаточно подробное, его недостаточно? И в каком коде проблема?
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