src/share/classes/java/lang/String.java

*** 1008,1024 ****
      }
  
      private boolean nonSyncContentEquals(AbstractStringBuilder sb) {
          char v1[] = value;
          char v2[] = sb.getValue();
!         int i = 0;
!         int n = value.length;
!         while (n-- != 0) {
              if (v1[i] != v2[i]) {
                  return false;
              }
-             i++;
          }
          return true;
      }
  
      /**
--- 1008,1025 ----
      }
  
      private boolean nonSyncContentEquals(AbstractStringBuilder sb) {
          char v1[] = value;
          char v2[] = sb.getValue();
!         int n = v1.length;
!         if (n != sb.length()) {
!             return false;
!         }
!         for (int i = 0; i < n; i++) {
              if (v1[i] != v2[i]) {
                  return false;
              }
          }
          return true;
      }
  
      /**
*** 1036,1047 ****
       *          false} otherwise
       *
       * @since  1.5
       */
      public boolean contentEquals(CharSequence cs) {
-         if (value.length != cs.length())
-             return false;
          // Argument is a StringBuffer, StringBuilder
          if (cs instanceof AbstractStringBuilder) {
              if (cs instanceof StringBuffer) {
                  synchronized(cs) {
                     return nonSyncContentEquals((AbstractStringBuilder)cs);
--- 1037,1046 ----
*** 1053,1068 ****
          // Argument is a String
          if (cs.equals(this))
              return true;
          // Argument is a generic CharSequence
          char v1[] = value;
!         int i = 0;
!         int n = value.length;
!         while (n-- != 0) {
!             if (v1[i] != cs.charAt(i))
                  return false;
!             i++;
          }
          return true;
      }
  
      /**
--- 1052,1069 ----
          // Argument is a String
          if (cs.equals(this))
              return true;
          // Argument is a generic CharSequence
          char v1[] = value;
!         int n = v1.length;
!         if (n != cs.length()) {
              return false;
!         }
!         for (int i = 0; i < n; i++) {
!             if (v1[i] != cs.charAt(i)) {
!                 return false;
!             }
          }
          return true;
      }
  
      /**