DSRA0080E：Cannot call 'cleanup' on a ManagedConnection

WAS 6.0，报如下错误，好像说是一个BUG，请高手指点：

[11-12-29 13:12:18:468 GMT+08:00] 0000d4f6 MCWrapper     E   J2CA0081E: 尝试在资源 jdbc/hostdb 的 ManagedConnection WSRdbManagedConnectionImpl@45e6db9 上执行方法 cleanup 时方法 cleanup 失败。捕捉到异常：com.ibm.ws.exception.WsException: DSRA0080E: An exception was received by the Data Store Adapter. See original exception message: Cannot call 'cleanup' on a ManagedConnection while it is still in a transaction..
at com.ibm.ws.rsadapter.exceptions.DataStoreAdapterException.(DataStoreAdapterException.java:224)
at com.ibm.ws.rsadapter.exceptions.DataStoreAdapterException.(DataStoreAdapterException.java:175)
at com.ibm.ws.rsadapter.AdapterUtil.createDataStoreAdapterException(AdapterUtil.java:232)
at com.ibm.ws.rsadapter.spi.WSRdbManagedConnectionImpl.cleanupTransactions(WSRdbManagedConnectionImpl.java:3290)
at com.ibm.ws.rsadapter.spi.WSRdbManagedConnectionImpl.cleanup(WSRdbManagedConnectionImpl.java:2930)
at com.ibm.ejs.j2c.MCWrapper.cleanup(MCWrapper.java:1341)
at com.ibm.ejs.j2c.poolmanager.FreePool.returnToFreePool(FreePool.java:438)
at com.ibm.ejs.j2c.poolmanager.PoolManager.release(PoolManager.java:1494)
at com.ibm.ejs.j2c.MCWrapper.releaseToPoolManager(MCWrapper.java:1949)
at com.ibm.ejs.j2c.ConnectionEventListener.connectionClosed(ConnectionEventListener.java:249)
at com.ibm.ws.rsadapter.spi.WSRdbManagedConnectionImpl.processConnectionClosedEvent(WSRdbManagedConnectionImpl.java:1462)
at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.closeWrapper(WSJdbcConnection.java:668)
at com.ibm.ws.rsadapter.jdbc.WSJdbcObject.close(WSJdbcObject.java:126)
at com.npa.ctos.system.Login.check(Login.java:239)
at com.npa.ctos.system.TransDispatchThread.run(TransDispatchThread.java:154)