JCA connection issue

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Hello,

I wrote the SAP example for JCA connection, the problem is that I have an exception on this point:

try {

client = cgService.getConnection(system_alias, prop);

} catch (Exception e) {

app.putValue(

"error",

"Couldn't establish a connection with a target system " + system_alias + ".");

return;

}

The error from the log file is:

There was a problem getting the timestamp of the node: events with internal id: 4294967579

[EXCEPTION]

#1#com.sap.engine.services.dbpool.exceptions.BaseSQLException: ResourceException in method ConnectionFactoryImpl.getConnection(): com.sap.engine.services.connector.exceptions.BaseResourceException: "ConnectionManager" is closed. Possible reasons: 1) connector "SAPJ2EDB" is stopped or not started, 2) Connector service is stopped or has not been started.

The problem seems to be on the cgService.getConnection, probabily on the Connector Gateway Service. I will appreciate any suggestion about this, could be a server configuration problem?

Thanks in advance,

Vipa