ATOM service return NullPointerException error

[JulianaKar]

We are getting a NullPointerException error related to the ATOM download service metadata. Until December 2023, if these errors occurred, they were very rare, and in the last 2 months they became regular for most metadata of the ATOM service. For example, checking the link manually (https://www.inspire-geoportal.lt/geonetwork/srv/eng/atom.predefined.service?uuid=9dae39cb-aad2-478c-a0cb-dd40c3a9b32d), we get a positive response for several times, until the time a NullPointerException error occurs. Maybe you have any ideas, what reasons can lead to this? Geonetwork version is 3.10.3.0

[jodygarnett]

Can you supply the stacktrace for the NullPointerException? That often gives us the line number in the code base to check.

This project has a large number of open issues, and we should do what we can to provide complete bug reports.

[JulianaKar]

Unfortunately, I cannot provide you with a stacktrace for the NullPointerException.
I refreshed the URL to get an error, after that I checked the logs of that period, but the error was not recorded in logs.

[josegar74]

I see you are using a really old version of GeoNetwork 3.10.3: https://www.inspire-geoportal.lt/geonetwork/srv/eng/catalog.search#/home

Please try to upgrade to latest 3.12.x release. And if you can use Elasticsearch (see details in #4727), I would suggest to use 4.2.x that is the current stable version.

[JulianaKar]

Thank you, we'll update the version and write if that fixed the problem.