resultSet getLong() for BIGINT column fails if value is Long.MIN_VALUE

Affects latest release 1.5.5, problem does not seem to occur in 1.5.4

Repro Steps:
Column is defined as BIGINT
insert row where column has Long.MIN_VALUE value
Select all rows, call resultSet.getLong(column number) for BIGINT column

Expected:
long value equal to Long.MIN_VALUE to be returned

Actual:
java.sql.SQLException: Out of range value for column 'mybigintcol' : value -9223372036854775808 is not in Long range