try {
          int unused = IntMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {
          return false;
        }
      }

      @Override
      public boolean noMulOverflow(long a, long b) {
        try {
          long unused = LongMath.checkedMultiply(a, b);
          return true;
        } catch (ArithmeticException e) {

        boolean expectedSuccess = fitsInLong(expectedResult);
        try {
          assertEquals(a * b, LongMath.checkedMultiply(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          if (expectedSuccess) {
            failFormat(
                "expected checkedMultiply(%s, %s) = %s; got ArithmeticException",
                a, b, expectedResult);
          }
        }
      }

      }
    }
    long accum = 1;
    while (true) {
      switch (k) {
        case 0:
          return accum;
        case 1:
          return checkedMultiply(accum, b);
        default:
          if ((k & 1) != 0) {
            accum = checkedMultiply(accum, b);
          }
          k >>= 1;
          if (k > 0) {
            checkNoOverflow(

        BigInteger expectedResult = valueOf(a).multiply(valueOf(b));
        boolean expectedSuccess = fitsInInt(expectedResult);
        try {
          assertEquals(a * b, IntMath.checkedMultiply(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          assertFalse(expectedSuccess);
        }
      }
    }
  }

  public void testCheckedPow() {