set the topic for the last will . concode_field_sep int qos concode_elem_sep byte[] payload concode_elem_sep String topic concode_elem_sep boolean retain concode_field_sep byte[] getPayload concode_elem_sep void setQos concode_elem_sep boolean isRetain concode_elem_sep void setPayload concode_elem_sep int getQos concode_elem_sep String toString concode_elem_sep MqttWillAndTestament fromString concode_elem_sep String getTopic concode_elem_sep void setRetain
void function ( String arg0 ) { this . topic = arg0 ; }