title: Class name is wrong or classpath is not set for : com.mysql.jdbc.Driver
body: <p>I want to configure glassfish with my db. 
  I create jdbc ressource like this:</p>
  
  <ul>
  <li>jndi name: jdbc/MysqlDataSource</li>
  <li>pool name : MysqlConnPoll</li>
  </ul>
  
  <p>And i create my connection pool like this:</p>
  
  <ul>
  <li>Pool Name: MysqlConnPoll</li>
  <li>Ressource type: java.sql.driver</li>
  <li>Driver classname: com.mysql.jdbc.driver</li>
  </ul>
  
  <p>in Additional Properties</p>
  
  <ul>
  <li>databaseName: name_db</li>
  <li>user: root</li>
  <li>password: ****</li>
  <li>url: jdbc:mysql://localhost:3306/name_db</li>
  <li>Port: 3306</li>
  <li>ServerName: localhost</li>
  </ul>
  
  <p>I add <strong>mysql-connecter-java</strong> and <strong>com.mysql.jdbc</strong> in "glassfish4/glassfish/domains/domain1/lib/ext"</p>
  
  <p>And when i ping my connection with the site glassfish, i have this message</p>
  
  <pre><code>Ping Connection Pool failed for MySqlConnPoll. Class name is wrong or classpath is not set for : com.mysql.jdbc.Driver Please check the server.log for more details.
  </code></pre>
  
  <p>Why i have this message ? i forgot something ?</p>
  
  <p>thanks</p>