src/java.base/share/classes/sun/security/x509/DNSName.java

rev 51919 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: dfuchs, alanb

*** 70,80 ****
       *
       * @param name the DNSName.
       * @throws IOException if the name is not a valid DNSName subjectAltName
       */
      public DNSName(String name) throws IOException {
!         if (name == null || name.length() == 0)
              throw new IOException("DNSName must not be null or empty");
          if (name.contains(" "))
              throw new IOException("DNSName with blank components is not permitted");
          if (name.startsWith(".") || name.endsWith("."))
              throw new IOException("DNSName may not begin or end with a .");
--- 70,80 ----
       *
       * @param name the DNSName.
       * @throws IOException if the name is not a valid DNSName subjectAltName
       */
      public DNSName(String name) throws IOException {
!         if (name == null || name.isEmpty())
              throw new IOException("DNSName must not be null or empty");
          if (name.contains(" "))
              throw new IOException("DNSName with blank components is not permitted");
          if (name.startsWith(".") || name.endsWith("."))
              throw new IOException("DNSName may not begin or end with a .");