@Target(value={ANNOTATION_TYPE,TYPE})
@Retention(value=RUNTIME)
public @interface JsonRootName

Annotation similar to XmlRootElement, used to indicate name to use for root-level wrapping, if wrapping is enabled. Annotation itself does not indicate that wrapping should be used; but if it is, name used for serialization should be name specified here, and deserializer will expect the name as well.