OutOfMemory - because set lots of html code to string?

Question

Hi,
I got "java.lang.OutOfMemoryError: Java heap space" error message when trying to get a list of objects (it's about 12,000). Below is the code snippet. It seems it has something to do with the part where I set html code (it's saved as blob in table) to string. If I hide this part, I got no error message when geting the list. I have 512RAM. Could someone please tell me how I can set html code to string efficiently, using StringBuilder?
Thanks a lot,
Katie
PreparedStatement st = conn.prepareStatement(sql.toString());
st.setInt(1, orderID);
ResultSet rs = st.executeQuery();
EmailProfile profile = null;
InputStream in = null;
ByteArrayOutputStream out = null;
int c;
int count = 0;
while (rs.next()) {
profile = new EmailProfile();
profile.setAgentID(rs.getInt(1));
in = rs.getBinaryStream(16);
out = new ByteArrayOutputStream();
while ((c = in.read()) != -1){
out.write(c);
profile.setHTML(out.toString());

Answer 1

html in each object is about 9693bytes. In this case, I have 12,000 object. Below shows how I close it. Thanks!
PreparedStatement st = conn.prepareStatement(sql.toString());
st.setInt(1, orderID);
ResultSet rs = st.executeQuery();
EmailProfile profile = null;
InputStream in = null;
ByteArrayOutputStream out = null;
int c;
int count = 0;
while (rs.next()) {
profile = new EmailProfile();
profile.setAgentID(rs.getInt(1));
in = rs.getBinaryStream(16);
out = new ByteArrayOutputStream();
while ((c = in.read()) != -1){
out.write(c);
profile.setHTML(out.toString());
list.add(profile);
              st.close();
              rs.close();
              tmasql.close();
            } catch (SQLException e) {
               System.out.println( e.getMessage());
              throw new Exception(e.getMessage());
            } catch (Exception e) {
              System.out.println("Except:" +e.getMessage());
              throw new Exception(e.getMessage());
            return list;
          }