Since we've updated to CF 2018 Updater 14, we are getting a lot of java.lang.ArrayIndexOutOfBoundsException errors. Did anyone else experience this? we are trying to get a handle on it. My dev reminded me there was a Q of Q patch out there, but struggling to find it to reapply.....if indeed is the issue.

Are they SOLR related? I’ve been seeing that on one of our servers as well.

@ehoffman make sure you (re)install the hf201800-4212383 hotfix. They did not include it for whatever reason in the update.

@ehoffman yes there's a QoQ issue, not sure if it can cause that specific error. The root problem is that certain operations corrupt the query's internal metadata, after which it may throw various nonsense errors. A fix is available from support, but only by request AFAIK. HTH.

Yes I have my backup, just need to figure out how to reapply the specific hotfix

Have had some weird instances of that in cf2021(from 2016 so could have been in 2018) related to certain headers being included on the page e.g. when outputting email logs or API responses on the page. Also i think this can happen when the response from CF overflows the allowable limit in cfadmin.