question: this function is kept to provide backward compatibility . concode_field_sep ImpersonationProvider sip concode_elem_sep String CONF_HADOOP_PROXYUSER concode_field_sep void refreshSuperUserGroupsConfiguration concode_elem_sep void refreshSuperUserGroupsConfiguration concode_elem_sep void refreshSuperUserGroupsConfiguration concode_elem_sep DefaultImpersonationProvider getDefaultImpersonationProvider concode_elem_sep ImpersonationProvider getInstance
target: void function ( UserGroupInformation arg0 , String arg1 , Configuration arg2 ) { authorize ( arg0 , arg1 ) ; }