java.sql.SQLException: Fail to convert to internal representation

I have a java progam that is connecting to an Oracle SQL server. All of my program works except for the following where I get the error that is posted as the subject.

if(selection.getSelectedItem().toString().equals("Expiration Date Query"))

		{
			String all = "SELECT OEXPDATE FROM ISORDEREDON WHERE OINUM=" +
Integer.parseInt(expDateQ.getText());
			String results = "";
			try {
				r = stmt.executeQuery (all); // execute the query
				int i = 0;
				while (r.next ()) {
					p.add(i, r.getInt ("oExpDate"));

					i = i+1;
					p.setSize(i);
				}


			} catch (SQLException sqlEx) {

				System.out.println ("Could not get results:" +
						sqlEx.toString ());


			}


			if(p.size() == 0)
			{
				JOptionPane.showMessageDialog(showTable, "Item Expiration Date not
in system");


			}

			else{
			Object [] myArray = new Object [p.size()-1];
			myArray = p.toArray();

			results = results + "Expiration Date = ";
			for(int i = 0; i < myArray.length; i = i + 1) {
				results = results + myArray[i] + "\n";


			}

			}

			return results;
		}

Any ideas?? Thanks! Received on Wed Dec 14 2005 - 09:48:58 CST