src/share/classes/java/math/BigDecimal.java

rev 7624 : 6480539: BigDecimal.stripTrailingZeros() has no effect on zero itself ("0.0")
Summary: Make stripTrailingZeros() return BigDecimal.ZERO if the BigDecimal is numerically equal to zero.
Reviewed-by: darcy
Contributed-by: Brian Burkhalter <brian.burkhalter@oracle.com>

*** 2590,2607 ****
       * this one but with any trailing zeros removed from the
       * representation.  For example, stripping the trailing zeros from
       * the {@code BigDecimal} value {@code 600.0}, which has
       * [{@code BigInteger}, {@code scale}] components equals to
       * [6000, 1], yields {@code 6E2} with [{@code BigInteger},
!      * {@code scale}] components equals to [6, -2]
       *
       * @return a numerically equal {@code BigDecimal} with any
       * trailing zeros removed.
       * @since 1.5
       */
      public BigDecimal stripTrailingZeros() {
!         if(intCompact!=INFLATED) {
              return createAndStripZerosToMatchScale(intCompact, scale, Long.MIN_VALUE);
          } else {
              return createAndStripZerosToMatchScale(intVal, scale, Long.MIN_VALUE);
          }
      }
--- 2590,2611 ----
       * this one but with any trailing zeros removed from the
       * representation.  For example, stripping the trailing zeros from
       * the {@code BigDecimal} value {@code 600.0}, which has
       * [{@code BigInteger}, {@code scale}] components equals to
       * [6000, 1], yields {@code 6E2} with [{@code BigInteger},
!      * {@code scale}] components equals to [6, -2].  If
!      * this BigDecimal is numerically equal to zero, then
!      * {@code BigDecimal.ZERO} is returned.
       *
       * @return a numerically equal {@code BigDecimal} with any
       * trailing zeros removed.
       * @since 1.5
       */
      public BigDecimal stripTrailingZeros() {
!         if (intCompact == 0 || (intVal != null && intVal.signum() == 0)) {
!             return BigDecimal.ZERO;
!         } else if (intCompact != INFLATED) {
              return createAndStripZerosToMatchScale(intCompact, scale, Long.MIN_VALUE);
          } else {
              return createAndStripZerosToMatchScale(intVal, scale, Long.MIN_VALUE);
          }
      }