question: set username , null by default . concode_field_sep String password concode_elem_sep String providerJNDI concode_elem_sep boolean isTopic concode_elem_sep String userName concode_elem_sep String TOPIC_TYPE concode_elem_sep String QUEUE_TYPE concode_field_sep void setProviderJNDI concode_elem_sep void setSessionDefaultType concode_elem_sep String getSessionDefaultType concode_elem_sep void setPassword concode_elem_sep String getPassword concode_elem_sep String getProviderJNDI concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String getUserName concode_elem_sep boolean isTopic concode_elem_sep void setIsTopic
target: void function ( final String arg0 ) { this . userName = arg0 ; }