title: Error preloading the connection pool
body: <p>I am using below env:</p>
  
  <ul>
  <li>jdk1.6.0_21</li>
  <li>apache-tomcat-7.0.16</li>
  <li>commons-dbcp.jar (version: 1.2.2)</li>
  <li>commons-pool.jar (version: 1.3)</li>
  <li>MySql Server 5.1</li>
  </ul>
  
  <p>Facing below exception all the time when trying to connect with DB:</p>
  
  <pre><code>Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Error preloading the connection pool
  </code></pre>
  
  <p>Please help.</p>