Invalid cast of Time part of Timestamp dbType

[glassfox]

Invalid cast time part of Timestamp dbType, when trying to load Resultset via CDataCacheDBAdapter.loadData

For example:
table: tmp_table

id | modify_date (timestamp)
1 | 2012-12-22 19:13:10

query:
select id, modify_date from tmp_table

code:
CDataCacheContainer ds = CDataCacheDBAdapter.loadData(resultSet, null, null, new HashMap());
CDataRowSet rowSet = ds.getAll();
while(rowSet.next()){
timeStamp = rowSet.getTimestamp("modify_date"); //<---
}

expected result:
timeStamp contains date and time parts. like: "2012-12-22 19:13:10"

actual result:
timeStamp contains only date part. like: "2012-12-22 00:00:00"