Payara Server is an open source middleware platform that supports reliable and secure deployments of Java EE (Jakarta EE) and MicroProfile applications in any environment: on premise, in the cloud or hybrid.
I have raised an internal issue with JIRA FISH-6091. Thanks. It may take a while to fix the issue. You are free to submit a PR to fix this issue if you feel confident to do so.
Description
Would be great if this fix released in Eclipselink 2.7.10 can be applied also on payara's version of Eclipselink: Fix https://github.com/eclipse-ee4j/eclipselink/issues/1161: Clone appropriate fields in OneToManyMapping.clone(). Fix ConcurrentModificationException. (backport for 2.7) by @aserkes in https://github.com/eclipse-ee4j/eclipselink/pull/1208.
Thank you for your attention