jdk/src/java.base/share/classes/java/math/MutableBigInteger.java

*** 1876,1886 ****
       * Jr., <i>Hacker's Delight (2nd ed.)</i> (Addison Wesley, 2013), 279-282.
       *
       * @throws ArithmeticException if the value returned by {@code bitLength()}
       * overflows the range of {@code int}.
       * @return the integer square root of {@code this}
!      * @since 1.9
       */
      MutableBigInteger sqrt() {
          // Special cases.
          if (this.isZero()) {
              return new MutableBigInteger(0);
--- 1876,1886 ----
       * Jr., <i>Hacker's Delight (2nd ed.)</i> (Addison Wesley, 2013), 279-282.
       *
       * @throws ArithmeticException if the value returned by {@code bitLength()}
       * overflows the range of {@code int}.
       * @return the integer square root of {@code this}
!      * @since 9
       */
      MutableBigInteger sqrt() {
          // Special cases.
          if (this.isZero()) {
              return new MutableBigInteger(0);