Problem in 10.1.3 with a databse connection obtained from a data source

Question

In my jdev 10.1.2 project, I use the following code to pass a Java array to an Oracle stored procedure. It works fine in 10.1.2, but throws an exception when I tried a trial migration of my project to 10.1.3. It seems the connection is of type TC4Connection in 10.1.3, which differs from the 10.1.2 type. Does this connection not implement the correct interface, or is there a version problem?
public Long updateChecklistByArray(Double appId, String [] naVals,
String [] okVals, String userId) {
Long valid = new Long("1");
Connection conn =null;
DataSource dataSource = null;
try {
Context initialContext = new InitialContext();
dataSource = (DataSource)initialContext.lookup("jdbc/ApisDS");
conn = dataSource.getConnection();
ArrayDescriptor ad = ArrayDescriptor.createDescriptor("FLAG_ARRAY",
conn);
ARRAY naArray = new ARRAY(ad, conn, naVals);
ARRAY okArray = new ARRAY(ad, conn, okVals);
String stm = "BEGIN UPDATE_CHECKLIST_BY_ARRAY"
+ "(?, ?, ?, ?, ?); END;";
OracleCallableStatement ps = (OracleCallableStatement) conn
.prepareCall(stm);
ps.setDouble(1, appId.doubleValue());
ps.setArray(2, naArray);
ps.setArray(3, okArray);
ps.setString(4, userId);
ps.registerOutParameter(5, Types.INTEGER, 0);
ps.execute();
int i = ps.getInt(5);
valid = new Long(i);
conn.commit();
conn.close();
} catch (Exception e) {
logger.error(e);
return valid;
}

Answer 1

The two query options seem to be incompatible, I'm not certain which is correct, perhaps an exception should be thrown. I guess your desire to have the Session cache refreshed, but anything already registered in the UnitOfWork not to be refreshed makes sense, so perhaps it is the correct option.
Please log your issue with Oracle technical support if you wish to have a fix for the issue.
As a workaround, you could execute the refresh query against the Session instead of the UnitOfWork, and then register the resulting objects in the UnitOfWork. This will ensure that changes are not reverted in your UnitOfWork objects.
i.e.
List objects = (List)unitOfWork.getParent().executeQuery(query);
List registeredObjects = unitOfWork.registerAllObjects(objects);