Pow throws Overflow in special case

[runforlife]

The next code throws Overflow error
BigDecimalMath.pow(new BigDecimal("85"), new BigDecimal("483379540.5878915618046344614959831"), MathContext.DECIMAL128)

expected result
new BigDecimal("8.191399333915731143433650968385840E+932641633")

In attachment you can find the fix (Intellij IDEA patch file)
bugfix_pow_special_case_overflow.patch