src/java.base/share/classes/java/io/Console.java

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

*** 245,255 ****
      */
      public String readLine(String fmt, Object ... args) {
          String line = null;
          synchronized (writeLock) {
              synchronized(readLock) {
!                 if (fmt.length() != 0)
                      pw.format(fmt, args);
                  try {
                      char[] ca = readline(false);
                      if (ca != null)
                          line = new String(ca);
--- 245,255 ----
      */
      public String readLine(String fmt, Object ... args) {
          String line = null;
          synchronized (writeLock) {
              synchronized(readLock) {
!                 if (!fmt.isEmpty())
                      pw.format(fmt, args);
                  try {
                      char[] ca = readline(false);
                      if (ca != null)
                          line = new String(ca);
*** 317,327 ****
                  } catch (IOException x) {
                      throw new IOError(x);
                  }
                  IOError ioe = null;
                  try {
!                     if (fmt.length() != 0)
                          pw.format(fmt, args);
                      passwd = readline(true);
                  } catch (IOException x) {
                      ioe = new IOError(x);
                  } finally {
--- 317,327 ----
                  } catch (IOException x) {
                      throw new IOError(x);
                  }
                  IOError ioe = null;
                  try {
!                     if (!fmt.isEmpty())
                          pw.format(fmt, args);
                      passwd = readline(true);
                  } catch (IOException x) {
                      ioe = new IOError(x);
                  } finally {