DataSource Error - makeURL() Failed

This section provides information the makeURL() error when creating connections from a DataSource object.

While testing the OracleDataSource class, I noticed that if the driver type was not provided, OracleDataSource class would fail to create a connection object. Here is a simple test program:

 * Copyright (c) All Rights Reserved.
import java.sql.*;
import javax.sql.*;
public class OracleDataSourceError {
  public static void main(String [] args) {
    Connection con = null;
    try {

// Setting up the DataSource object
      oracle.jdbc.pool.OracleDataSource ds
        = new oracle.jdbc.pool.OracleDataSource();

// Testing without setting the driver type
//    ds.setDriverType("thin");

      ds.setDatabaseName("XE"); // Oracle SID

// Getting a connection object
      con = ds.getConnection();

// Getting the connection URL back
      System.out.println("Connection URL: "+ds.getURL());

// Closing the connection
    } catch (Exception e) {

Here is the error message I received:

herong> javac -cp .;ojdbc11.jar

herong> java -cp .;ojdbc11.jar OracleDataSourceError

Invalid Oracle URL specified: OracleDataSource.makeURL
   at oracle.jdbc.pool.OracleDataSource.makeURL(...)
   at oracle.jdbc.pool.OracleDataSource.getConnection(...)
   at oracle.jdbc.pool.OracleDataSource.getConnection(...)
   at OracleDataSourceError.main(

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

 Java DB (Derby) - PreparedStatement

 MySQL Installation on Windows

 MySQL JDBC Driver (MySQL Connector/J)

 MySQL - PreparedStatement

 MySQL - Reference Implementation of JdbcRowSet

 MySQL - JBDC CallableStatement

 MySQL CLOB (Character Large Object) - TEXT

 MySQL BLOB (Binary Large Object) - BLOB

 Oracle Express Edition Installation on Windows

Oracle JDBC Drivers

 Oracle JDBC Drivers Overview

 JDBC Thin Client-Side Driver Installation

 Loading JDBC Driver Class - ojdbc16.jar

 JDBC Driver Connection URL

 Creating Connections with DataSource Class

DataSource Error - makeURL() Failed

 Getting Driver and Server Information

 "CREATE TABLE" - Creating New Tables

 "INSERT INTO" - Inserting New Data Rows

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Microsoft SQL Server Express Edition

 Microsoft JDBC Driver for SQL Server

 Microsoft JDBC Driver - Query Statements and Result Sets

 Microsoft JDBC Driver - DatabaseMetaData Object

 Microsoft JDBC Driver - DDL Statements

 Microsoft JDBC Driver - DML Statements

 SQL Server - PreparedStatement

 SQL Server CLOB (Character Large Object) - TEXT

 SQL Server BLOB (Binary Large Object) - BLOB

 JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver

 JDBC-ODBC Bridge Driver - Flat Text Files

 JDBC-ODBC Bridge Driver - MS Access

 JDBC-ODBC Bridge Driver - MS SQL Server

 Summary of JDBC Drivers and Database Servers

 Using Connection Pool with JDBC

 Archived Tutorials


 Full Version in PDF/EPUB