Improve concurrent behavior of HornetqJournalStore -------------------------------------------------- Key: JBTM-2618 URL: https://issues.jboss.org/browse/JBTM-2618 Project: JBoss Transaction Manager Issue Type: Enhancement Reporter: Luis Barreiro Fix For: 5.2.14.Final Remove existing synchronized block and also make better usage of concurrent data structures already present in the code. When there is a high number of threads, some will be block reducing the overall throughput and increasing response times on the whole system.