Two exceptions are thrown periodically while accessing Fedora via the REST Servlet. The system is operating under a moderate-high load but none of its resources are bottlenecked. Subsequent access operations function normally with the exceptions thrown at random but regular intervals. The VM is also under load with the ingest of digital object and very small numbers of managed datastreams. The events seem to correspond to 500 notifications in the client. There does not seem to be any effect to the ingest operations.
The exceptions are found in the localhost log attached. The catalina log is attached for completeness.