请问，如何使用Proxool配置JNDI数据源，急
目前的配置文件如下：
Proxool.xml

<?xml   version= "1.0 "   encoding= "UTF-8 "?>
<something-else-entirely>
        <proxool>
                <alias> DBPool </alias>
                <driver-url> jdbc:oracle:thin:@127.0.0.16:1521:ora </driver-url>
                <driver-class> oracle.jdbc.driver.OracleDriver </driver-class>
                <driver-properties>
                        <property   name= "user "   value= "test "/>
                        <property   name= "password "   value= "1234 "/>
                </driver-properties>

                <maximum-connection-count> 10 </maximum-connection-count>
                <house-keeping-test-sql> select   sysdate   from   dual </house-keeping-test-sql>

                <jndi-name> jdbc/mydatasource </jndi-name>
                <jndi-java.naming.factory.initial> com.caucho.naming.InitialContextFactoryImpl </jndi-java.naming.factory.initial>
                <jndi-java.naming.provider.url> localhost:1099 </jndi-java.naming.provider.url>
        </proxool>
</something-else-entirely>


在web.xml加入了
  <servlet>
            <servlet-name> proxoolServletConfigurator </servlet-name>
        <servlet-class> org.logicalcobwebs.proxool.configuration.ServletConfigurator </servlet-class>
          <init-param>
              <param-name> xmlFile </param-name>
              <param-value> WEB-INF/src/proxool.xml </param-value>
          </init-param>
          <load-on-startup> 1 </load-on-startup>
      </servlet>

启动Tomcat初始化Proxool时总是报如下错误：

2007-03-12   14:00:11]   [INFO   ]     initialize   Log4j   over...  
[2007-03-12   14:00:11]   [INFO   ]   Proxool   0.9.0RC3   (10-Jan-2007   01:38)  
[2007-03-12   14:00:11]   [ERROR]   JNDI   DataSource   binding   of   DBPool   pool   failed.  
java.lang.reflect.InvocationTargetException
at   sun.reflect.NativeMethodAccessorImpl.invoke0(Native   Method)
at   sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at   sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at   java.lang.reflect.Method.invoke(Met