Hi
How to save array of UserType in Oracle using Hibernate.

CREATE OR REPLACE TYPE ADDRESS_TY AS OBJECT
(
plot number(4),
street varchar2(20),
city varchar2(20)
);

CREATE OR REPLACE TYPE ADDRESS_TY_ARR
AS VARRAY(100) OF ADDRESS_TY;

Create Table EMPLOYEE_ARR(EMPID VARCHAR2(10),ADDRESSES ADDRESS_TY_ARR);

EmpAddress.hbm.xml
-------------------
<class name="EmpAddressArr" table="EMPLOYEE_ARR">
<!-- cache usage="read-only"/-->
<id name="empid" column="EMPID" type="string"/>
<property name="empAddressArray" column="ADDRESSES" type="pojos.EmpAddressArrTY"/>
</class>

public class AddressVO {

private int plot;
private String street;
private String city;
//setters and getters
}

public class EmpAddressArrTY implements UserType {

//implemented all other required methods
public void nullSafeSet(PreparedStatement arg0, Object arg1, int arg2)
throws HibernateException, SQLException {
if(arg1==null){
ArrayDescriptor arrdesc=new ArrayDescriptor("ADDRESS_TY_ARR",arg0.getConnection());
ARRAY array =new ARRAY(arrdesc, arg0.getConnection(), null);
arg0.setObject(arg2,array);
}else{
HashSet set = (HashSet)arg1;
Object [] objs = (Object[])set.toArray();
AddressVO []addr = new AddressVO[objs.length];
for(int i=0;i<objs.length;i++)
{ addr[i] = (AddressVO)objs[i]; }

ArrayDescriptor arrdesc=new ArrayDescriptor("ADDRESS_TY_ARR",arg0.getConnection());
ARRAY array =new ARRAY(arrdesc, arg0.getConnection(), addr);
arg0.setArray(arg2,array);
}
}
}


Getting following exception:
java.sql.SQLException: Fail to convert to internal representation: pojos.AddressVO@83b1b

How to map AddressVO with ADDRESS_TY??

Thanks in advance.
--
Raj