Need some help troubleshooting this code

Question

I have the following code in a JSP (HTML stuff edited out). If I run it as it is I get a blank page. But if I comment out the line that says "ruleName = rs.getInt("rule_name");" I am able to see the output of the prepared statement call. I need to see the results of both queries. Any ideas how I can fix this? Thanks.
<%@ page language="java" import="java.sql.*" %>
<%@ page import="oracle.jdbc.driver.*" %>
<%@ page import="oracle.sql.*" %>
<%@ page import="beans.*" %>
<%
Connection conn = null;
CallableStatement cstmt= null;
Statement stmt = null;
int ruleName = 0;
try {
//Build the database connection string
String SYSTEM_DB_DRIVER =
"oracle.jdbc.driver.OracleDriver";
String SYSTEM_DB_URL =
"jdbc:oracle:thin:@<db connection string>";
String SYSTEM_DB_FILE = "<db>";
String SYSTEM_DB_USER = "<user>";
String SYSTEM_DB_PASSWORD = "(passwd>";
Class.forName(SYSTEM_DB_DRIVER);
conn = DriverManager.getConnection(SYSTEM_DB_URL +
SYSTEM_DB_FILE, SYSTEM_DB_USER, SYSTEM_DB_PASSWORD);
System.out.println("creating stmt for rule name");                    
stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT DISTINCT MAX(TO_NUMBER(rule_name)) FROM rules WHERE product_id = CHR(" + prodId + ")");                    
ruleName = rs.getInt("rule_name");
System.out.println(ruleName);
// Prepare a PL/SQL call.
OracleCallableStatement call =
(OracleCallableStatement)conn.prepareCall("{ call wacc_eaicl_p_requirement.open_rules_dtl (:1,:2) }");
// Return the rules.
call.registerOutParameter(1, OracleTypes.CURSOR);
call.setInt(2, Integer.parseInt(prodId) );
call.execute();
ResultSet rset = ((OracleCallableStatement)call).getCursor(1);
System.out.println(prodId);
rs.close();
stmt.close();
conn.close();                                    
rset.close();
call.close();
conn.close();
catch(Exception e)
%>

Answer 1

Never mind. I fixed it. Silly me. Lesson learned: Use exceptions!