druid 1.0.5 报错 validateConnection false?报错

@wenshao 你好，想跟你请教个问题：使用druid 1.0.5配置好后抛出如下异常，

2014-6-20 20:02:31 com.alibaba.druid.pool.DruidDataSource info
信息: {dataSource-1} inited
2014-6-20 20:02:31 com.alibaba.druid.pool.DruidDataSource error
严重: create connection error
java.sql.SQLException: validateConnection false
 at com.alibaba.druid.pool.DruidAbstractDataSource.validateConnection(DruidAbstractDataSource.java:1199)
 at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1422)
 at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1649)
2014-6-20 20:02:31 com.alibaba.druid.pool.DruidDataSource error

但在0.2.26下没有任何问题，jdk1.6，tomcat 6.0.41，jdbc class14.jar,连接池配置如下：

 <Resource name="jdbc/cn" auth="Container"
  type="javax.sql.DataSource"  factory="com.alibaba.druid.pool.DruidDataSourceFactory"
  maxActive="20" maxIdel="3" maxWait="-1" username="webtonedocuser"
  password="webtonedocuser" driverClassName="oracle.jdbc.driver.OracleDriver"
  url="jdbc:oracle:thin: @127.0.0.1 :1521:orcl" filters="stat">
 </Resource>