Convert the message payload from serialized form to an Object.
@param message the input message
@param targetClass the target class for the conversion
@param conversionHint an extra object passed to the {@link MessageConverter},
e.g. the associated {@code MethodParameter} (may be {@code null}}
@return the result of the conversion, or {@code null} if the converter cannot
perform the conversion
@since 4.2
Convert the message payload from serialized form to an Object. @param message the input message @param targetClass the target class for the conversion @param conversionHint an extra object passed to the {@link MessageConverter}, e.g. the associated {@code MethodParameter} (may be {@code null}} @return the result of the conversion, or {@code null} if the converter cannot perform the conversion @since 4.2