question: if network hardware on a node was replaced , the identity will change . concode_field_sep String identity concode_elem_sep Logger log concode_elem_sep String NODE_IDENTITY concode_elem_sep ArrayList<String> formerIdentities concode_elem_sep NodeIdentity instance concode_elem_sep String FORMER_IDENTITIES concode_elem_sep String ROOT_ELEMENT concode_field_sep boolean validateIdentity concode_elem_sep void init concode_elem_sep String identity concode_elem_sep void getIdentity concode_elem_sep void saveIdentity concode_elem_sep File identityFile concode_elem_sep String createIdentity
target: List < String > function ( ) { if ( instance == null ) { instance = new NodeIdentity ( ) ; log . info ( "srini_string" , instance . identity ) ; } return new ArrayList < String > ( instance . formerIdentities ) ; }