JCO.Pool: error

Hi !

I have http -> rfc -> file scenario. I get en error when XI (BPM) calls SAP. It uses the right communication channel. What does that message mean ?

Regards

Jari

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Error message:

com.sap.aii.af.ra.ms.api.DeliveryException: error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: could not get a client from JCO.Pool: com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: connection closed without messag