when my route tries to poll and process a file from remote client SFTP server directory, it SOMETIMES throws this exception.

Here is the endpoint resulting from above configuration:

2014-01-21 13:30:00,024 | INFO | camel-6_Worker-2 | OsgiSpringCamelContext | e.camel.impl.DefaultCamelContext 2066 | 79 - org.apache.camel.camel-core - 2.10.0.fuse-71-049 | Route: nyIntegrationRoute started and consuming from: Endpoint[sftp://test56184@*.*.*.*:22/outbox?delay=3600000&exclude=X.*&move=X%24%7Bfile%3Aname%7D&password=******&stepwise=false]

It looks like a similar issue as this already fixed JIRA:
https://issues.apache.org/jira/browse/CAMEL-6309