src/java.base/windows/classes/sun/nio/fs/WindowsPath.java

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

*** 241,251 ****
          // Drive relative path ("C:foo" for example).
          if (isSameDrive(root, getFileSystem().defaultRoot())) {
              // relative to default directory
              String remaining = path.substring(root.length());
              String defaultDirectory = getFileSystem().defaultDirectory();
!             if (remaining.length() == 0) {
                  return defaultDirectory;
              } else if (defaultDirectory.endsWith("\\")) {
                   return defaultDirectory + remaining;
              } else {
                  return defaultDirectory + "\\" + remaining;
--- 241,251 ----
          // Drive relative path ("C:foo" for example).
          if (isSameDrive(root, getFileSystem().defaultRoot())) {
              // relative to default directory
              String remaining = path.substring(root.length());
              String defaultDirectory = getFileSystem().defaultDirectory();
!             if (remaining.isEmpty()) {
                  return defaultDirectory;
              } else if (defaultDirectory.endsWith("\\")) {
                   return defaultDirectory + remaining;
              } else {
                  return defaultDirectory + "\\" + remaining;
*** 297,307 ****
      }
  
      // -- Path operations --
  
      private boolean isEmpty() {
!         return path.length() == 0;
      }
  
      private WindowsPath emptyPath() {
          return new WindowsPath(getFileSystem(), WindowsPathType.RELATIVE, "", "");
      }
--- 297,307 ----
      }
  
      // -- Path operations --
  
      private boolean isEmpty() {
!         return path.isEmpty();
      }
  
      private WindowsPath emptyPath() {
          return new WindowsPath(getFileSystem(), WindowsPathType.RELATIVE, "", "");
      }
*** 338,348 ****
                                     path.substring(0, off));
      }
  
      @Override
      public WindowsPath getRoot() {
!         if (root.length() == 0)
              return null;
          return new WindowsPath(getFileSystem(), type, root, root);
      }
  
      // package-private
--- 338,348 ----
                                     path.substring(0, off));
      }
  
      @Override
      public WindowsPath getRoot() {
!         if (root.isEmpty())
              return null;
          return new WindowsPath(getFileSystem(), type, root, root);
      }
  
      // package-private
*** 554,564 ****
          if (remaining == count)
              return this;
  
          // corner case - all names removed
          if (remaining == 0) {
!             return (root.length() == 0) ? emptyPath() : getRoot();
          }
  
          // re-constitute the path from the remaining names.
          StringBuilder result = new StringBuilder();
          if (root != null)
--- 554,564 ----
          if (remaining == count)
              return this;
  
          // corner case - all names removed
          if (remaining == 0) {
!             return root.isEmpty() ? emptyPath() : getRoot();
          }
  
          // re-constitute the path from the remaining names.
          StringBuilder result = new StringBuilder();
          if (root != null)