src/java.base/share/classes/sun/net/www/protocol/ftp/FtpURLConnection.java

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

*** 339,349 ****
          }
          if (path != null && path.length() > 1 &&
                  path.charAt(0) == '/') {
              path = path.substring(1);
          }
!         if (path == null || path.length() == 0) {
              path = "./";
          }
          if (!path.endsWith("/")) {
              i = path.lastIndexOf('/');
              if (i > 0) {
--- 339,349 ----
          }
          if (path != null && path.length() > 1 &&
                  path.charAt(0) == '/') {
              path = path.substring(1);
          }
!         if (path == null || path.isEmpty()) {
              path = "./";
          }
          if (!path.endsWith("/")) {
              i = path.lastIndexOf('/');
              if (i > 0) {
*** 553,563 ****
          if (os != null) {
              return os;
          }
  
          decodePath(url.getPath());
!         if (filename == null || filename.length() == 0) {
              throw new IOException("illegal filename for a PUT");
          }
          try {
              if (pathname != null) {
                  cd(pathname);
--- 553,563 ----
          if (os != null) {
              return os;
          }
  
          decodePath(url.getPath());
!         if (filename == null || filename.isEmpty()) {
              throw new IOException("illegal filename for a PUT");
          }
          try {
              if (pathname != null) {
                  cd(pathname);