src/java.base/share/classes/sun/security/provider/ConfigFile.java

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

*** 624,634 ****
                  // correct one.
                  try {
                      return url.openStream();
                  } catch (Exception e) {
                      String file = url.getPath();
!                     if (url.getHost().length() > 0) {  // For Windows UNC
                          file = "//" + url.getHost() + file;
                      }
                      if (debugConfig != null) {
                          debugConfig.println("cannot read " + url +
                                              ", try " + file);
--- 624,634 ----
                  // correct one.
                  try {
                      return url.openStream();
                  } catch (Exception e) {
                      String file = url.getPath();
!                     if (!url.getHost().isEmpty()) {  // For Windows UNC
                          file = "//" + url.getHost() + file;
                      }
                      if (debugConfig != null) {
                          debugConfig.println("cannot read " + url +
                                              ", try " + file);
*** 649,659 ****
  
              if (!expandProp) {
                  return value;
              }
              String s = PropertyExpander.expand(value);
!             if (s == null || s.length() == 0) {
                  throw ioException(
                      "Configuration.Error.Line.line.system.property.value.expanded.to.empty.value",
                      linenum, value);
              }
              return s;
--- 649,659 ----
  
              if (!expandProp) {
                  return value;
              }
              String s = PropertyExpander.expand(value);
!             if (s == null || s.isEmpty()) {
                  throw ioException(
                      "Configuration.Error.Line.line.system.property.value.expanded.to.empty.value",
                      linenum, value);
              }
              return s;