src/java.base/share/classes/java/net/InetAddress.java

rev 52881 : 8214971: Replace use of string.equals("") with isEmpty()
Reviewed-by: jlaskey, prappo, lancea, dfuchs, redestad

*** 1007,1017 ****
                  throw new UnknownHostException("Unable to resolve address "
                          + addrString + " as hosts file " + hostsFile
                          + " not found ");
              }
  
!             if ((host == null) || (host.equals("")) || (host.equals(" "))) {
                  throw new UnknownHostException("Requested address "
                          + addrString
                          + " resolves to an invalid entry in hosts file "
                          + hostsFile);
              }
--- 1007,1017 ----
                  throw new UnknownHostException("Unable to resolve address "
                          + addrString + " as hosts file " + hostsFile
                          + " not found ");
              }
  
!             if ((host == null) || (host.isEmpty()) || (host.equals(" "))) {
                  throw new UnknownHostException("Requested address "
                          + addrString
                          + " resolves to an invalid entry in hosts file "
                          + hostsFile);
              }
*** 1044,1054 ****
                      hostEntry = hostsFileScanner.nextLine();
                      if (!hostEntry.startsWith("#")) {
                          hostEntry = removeComments(hostEntry);
                          if (hostEntry.contains(host)) {
                              addrStr = extractHostAddr(hostEntry, host);
!                             if ((addrStr != null) && (!addrStr.equals(""))) {
                                  addr = createAddressByteArray(addrStr);
                                  if (inetAddresses == null) {
                                      inetAddresses = new ArrayList<>(1);
                                  }
                                  if (addr != null) {
--- 1044,1054 ----
                      hostEntry = hostsFileScanner.nextLine();
                      if (!hostEntry.startsWith("#")) {
                          hostEntry = removeComments(hostEntry);
                          if (hostEntry.contains(host)) {
                              addrStr = extractHostAddr(hostEntry, host);
!                             if ((addrStr != null) && (!addrStr.isEmpty())) {
                                  addr = createAddressByteArray(addrStr);
                                  if (inetAddresses == null) {
                                      inetAddresses = new ArrayList<>(1);
                                  }
                                  if (addr != null) {