jdk/src/java.base/share/classes/java/lang/AbstractStringBuilder.java

*** 1524,1534 ****
      @Override
      public abstract String toString();
  
      /**
       * {@inheritDoc}
!      * @since 1.9
       */
      @Override
      public IntStream chars() {
          byte[] val = this.value; int count = this.count; byte coder = this.coder;
          checkOffset(count, val.length >> coder);
--- 1524,1534 ----
      @Override
      public abstract String toString();
  
      /**
       * {@inheritDoc}
!      * @since 9
       */
      @Override
      public IntStream chars() {
          byte[] val = this.value; int count = this.count; byte coder = this.coder;
          checkOffset(count, val.length >> coder);
*** 1541,1551 ****
                  false);
      }
  
      /**
       * {@inheritDoc}
!      * @since 1.9
       */
      @Override
      public IntStream codePoints() {
          byte[] val = this.value; int count = this.count; byte coder = this.coder;
          checkOffset(count, val.length >> coder);
--- 1541,1551 ----
                  false);
      }
  
      /**
       * {@inheritDoc}
!      * @since 9
       */
      @Override
      public IntStream codePoints() {
          byte[] val = this.value; int count = this.count; byte coder = this.coder;
          checkOffset(count, val.length >> coder);