WebSphere 5.0.2上配置Informix数据源错误解决！谢谢

[worldheart]

本人在下载Informix JDBC Driver 2.21.JC5驱动后。配置Informix数据源，并测试时，有如下异常：

DSRA8040I: 无法连接到 DataSource。遇到 ：java.lang.NoSuchMethodError: com.informix.jdbcx.IfxSqliConnReUsableConnection: method closeAllResultSets()V not found at com.informix.jdbcx.IfxSqliConnReUsableConnection.close(IfxSqliConnReUsableConnection.java:93) at com.ibm.ws.rsadapter.DSConfigurationHelper.testConnectionForGUI(DSConfigurationHelper.java:1766) at java.lang.reflect.Method.invoke(Native Method) at com.ibm.ws.management.DataSourceConfigHelperMBean.testConnectionToDataSource2(DataSourceConfigHelperMBean.java:511) at com.ibm.ws.management.DataSourceConfigHelperMBean.testConnection(DataSourceConfigHelperMBean.java:439) at java.lang.reflect.Method.invoke(Native Method) at com.tivoli.jmx.modelmbean.MMBInvoker.invoke(MMBInvoker.java:46) at com.tivoli.jmx.modelmbean.MMBInvoker.invokeOperation(MMBInvoker.java:115) at com.tivoli.jmx.modelmbean.DynamicModelMBeanSupport.invoke(DynamicModelMBeanSupport.java:409) at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:323) at com.tivo -- <truncated> --。

原因何在？

谢谢！