question: obtains a scheme by name , if registered . concode_field_sep ConcurrentHashMap<String,Scheme> registeredSchemes concode_field_sep Scheme getScheme concode_elem_sep Scheme getScheme concode_elem_sep void setItems concode_elem_sep Scheme unregister concode_elem_sep List<String> getSchemeNames concode_elem_sep Scheme register
target: Scheme function ( final String arg0 ) { Args . notNull ( arg0 , "srini_string" ) ; final Scheme loc0 = registeredSchemes . get ( arg0 ) ; return loc0 ; }