ADF:Calling PLSQL Package using jdbc connection

ArrayList rows = new ArrayList();
private static String connectUrl = "jdbc:oracle:thin:@10.201.1.32:1521:XE";
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
con = DriverManager.getConnection(connectUrl, "HR", "oracle");
//Statement s = con.createStatement();
//ResultSet rs = s.executeQuery("Select * from employees");
//while (rs.next()){
//System.out.println(rs.getString(2)); //}
oracle.jdbc.OracleCallableStatement ocs = null;
oracle.sql.StructDescriptor structDesc = StructDescriptor.createDescriptor("EMP_REC", con);
oracle.sql.ArrayDescriptor arrayDesc = ArrayDescriptor.createDescriptor("EMP_TABLE", con);
ArrayList arr = new ArrayList();
String[] objName;
ListIterator LItr = rows.listIterator();
while (LItr.hasNext()) {
// objName=(String[])LItr.next();
// Object [] singleobj = {
// objName[0],objName[1],objName[2]
// };
oracle.sql.STRUCT p1struct = new STRUCT(structDesc, con, (Object[])LItr.next()); //singleobj);
arr.add(p1struct);
}
oracle.sql.ARRAY newArray = new ARRAY(arrayDesc, con, arr.toArray());
ocs =
//(OracleCallableStatement)con.prepareCall("begin PK_PROD.INSERT_PROD1; end;");
(OracleCallableStatement)con.prepareCall("begin PK_PROD.INSERT_PROD(:1); end;"); ocs.setARRAY(1, newArray);
ocs.execute();
con.commit();
con.close();
ocs.close();