Race condition involving Pool.fillTo ------------------------------------ Key: JBJCA-1404 URL: https://issues.redhat.com/browse/JBJCA-1404 Project: IronJacamar Issue Type: Bug Reporter: Flavia Rainone Assignee: Flavia Rainone Priority: Major The fillTo implementation of SemaphoreConcurrentLinkedDequeManagedConnectionPool suffers from the same issue we found in increase capacity: https://github.com/ironjacamar/ironjacamar/pull/695/commits/d80c2ae7713f4... See JBJCA-1399. This means that when more than two threads attempt to add connections to the pool and one of them does so via fillTo, we can run into problems with pool max size.