src/java.base/share/classes/sun/security/ssl/SupportedGroupsExtension.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

*** 481,500 ****
              //
              // If the System Property is not defined or the value is empty, the
              // default groups and preferences will be used.
              String property = GetPropertyAction
                      .privilegedGetProperty("jdk.tls.namedGroups");
!             if (property != null && property.length() != 0) {
                  // remove double quote marks from beginning/end of the property
                  if (property.length() > 1 && property.charAt(0) == '"' &&
                          property.charAt(property.length() - 1) == '"') {
                      property = property.substring(1, property.length() - 1);
                  }
              }
  
              ArrayList<NamedGroup> groupList;
!             if (property != null && property.length() != 0) {
                  String[] groups = property.split(",");
                  groupList = new ArrayList<>(groups.length);
                  for (String group : groups) {
                      group = group.trim();
                      if (!group.isEmpty()) {
--- 481,500 ----
              //
              // If the System Property is not defined or the value is empty, the
              // default groups and preferences will be used.
              String property = GetPropertyAction
                      .privilegedGetProperty("jdk.tls.namedGroups");
!             if (property != null && !property.isEmpty()) {
                  // remove double quote marks from beginning/end of the property
                  if (property.length() > 1 && property.charAt(0) == '"' &&
                          property.charAt(property.length() - 1) == '"') {
                      property = property.substring(1, property.length() - 1);
                  }
              }
  
              ArrayList<NamedGroup> groupList;
!             if (property != null && !property.isEmpty()) {
                  String[] groups = property.split(",");
                  groupList = new ArrayList<>(groups.length);
                  for (String group : groups) {
                      group = group.trim();
                      if (!group.isEmpty()) {