Where are you actually using the AAPResult resultMap? You show below
where it is defined, but not where it is used...
<?xml version="1.0" encoding="utf-8" ?>
<sqlMap
namespace="Domain"
xmlns="http://ibatis.apache.org/mapping"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- XML "behind" document for the Account service class. -->
<alias>
<typeAlias alias="AccountAuthenticateParam"
type="Domain.Tests.AccountAuthenticateParam, Domain" />
</alias>
<resultMaps>
<resultMap id="AAPResult" class="AccountAuthenticateParam">
<result property="Email" column="email" />
<result property="Password" column="password" />
</resultMap>
</resultMaps>
</sqlMap>