When serving large artefacts it is possible to encounter and out of memory exception which renders certain paths within the repository inaccessible. Specifically the errors appeared to occur when trying to access the checksums for artefacts.

The offending artefacts are large shaded jar files which package large dependency trees into a single executable jar file. We started encountering this error after one of our developers introduced significant new dependencies which inflated the size of the artefacts. Our system administrators where able to work around this by increasing the max heap size assigned to the Jenkins process.

The associated error dumps are attached.