Cannot create JDBC driver of  class  'oracle.jdbc.pool.OracleConnectionPoolDataSource'  for  connect URL 'jdbc:oracle:thin:myschema@192.168.0.1:1521:orcl1'

     public   void  doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain nextFilter)  throws  ServletException, IOException
    {
        HttpServletRequest request = (HttpServletRequest)servletRequest;
        HttpServletResponse response = (HttpServletResponse)servletResponse;

        log.info("DO FILTER");
        Connection conn =  null ;
         try {
            Context context  = (Context)( new  InitialContext()).lookup("java:/comp/env");
            DataSource dataSource = (DataSource)context.lookup("jdbc/testTomcat");

            conn = dataSource.getConnection();
        }  catch  (NamingException e) {
            log.error(e.getExplanation());
            e.printStackTrace();
        }  catch  (SQLException e) {
            log.error(e.getMessage());
            e.printStackTrace();
        }
         try {
            nextFilter.doFilter(request,response);
        } finally {
             if  (conn!= null )
                 try {
                    conn.close();
                }  catch  (SQLException e) {
                    log.error(e.getMessage());
                    e.printStackTrace();
                }
        }
    }

<Context path="/testTomcat">

  <Resource name="jdbc/testTomcat" auth="Container"
            type="javax.sql.DataSource" driverClassName="oracle.jdbc.pool.OracleConnectionPoolDataSource"
            url="jdbc:oracle:thin:myschema@192.168.0.1:1521:orcl1"
            username="username" password="password" maxActive="20" maxIdle="10"
            maxWait="-1"/>
</Context>

java.lang.NullPointerException
	org.apache.tomcat.dbcp.dbcp.DelegatingConnection.close(DelegatingConnection.java: 151 )
	org.apache.tomcat.dbcp.dbcp.PoolableConnection.reallyClose(PoolableConnection.java: 95 )
	org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.destroyObject(PoolableConnectionFactory.java: 301 )
	org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java: 883 )
	org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java: 851 )
	org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java: 540 )
	ser.db.doFilter(db.java: 47 )

<Context path="/testTomcat">

  <Resource name="jdbc/testTomcat" auth="Container"
            type="javax.sql.DataSource" driverClassName="oracle.jdbc.driver.OracleDriver"
            url="jdbc:oracle:thin:@192.168.0.1:1521:orcl1"
            username="username" password="password" maxActive="20" maxIdle="10"
            maxWait="-1"/>
</Context>