src/main/java/org/jamppa/component/utils/XMPPUtils.java
public static IQ error(IQ iq, String errorMessage) {
        return XMPPUtils.createErrorResponse(iq, errorMessage,
                Condition.bad_request, Type.modify);
    }
public static IQ error(IQ iq, String errorMessage) {
        return XMPPUtils.createErrorResponse(iq, errorMessage,
                Condition.bad_request, Type.modify);
    }
Logs the error and returns an IQ error response

@param iq
@param errorMessage
@param logger
@return