question: public String toString ( ) { if ( keyUsages == null ) return "" ; String usage = "  " ; boolean first = true ; for ( ObjectIdentifier oid : keyUsages ) { if ( ! first ) { usage += "\n  " ; } String result = map . get ( oid ) ; if ( result != null ) { usage += result ; } else { usage += oid . toString ( ) ; } first = false ; } return super . toString ( ) + "ExtendedKeyUsages [\n" + usage + "\n]\n" ; }
target:  Return the extension as user readable string.