[ https://issues.jboss.org/browse/WFLY-2959?page=com.atlassian.jira.plugin.... ] Chris Roberts commented on WFLY-2959: ------------------------------------- I believe the attached test project is the simplest recreation of the issues. Sorry, I'm not a king of writing test cases, so it's just a project with the issues, I don't know how to right unit tests for JAX-RS resources :-) You can test it after deployment with: curl http://localhost:8080/org.jboss.test.test-jackson/rest/person/ - Uses Jackson2 (per POM and jboss-deployment-structure.xml) - Uses jackson-datatype-hibernate4 (currently 2.3.0 as per jackson-core in wildfly 8 final) with a OneToMany entity As it stands it gives the _configForWriter issue (with wildfly 8 final). With wildfly 8 CR1 (change jackson-datatype-hibernate4 version to 2.2.3 in the pom.xml to match wildfly 8 cr1 jackson version), it will give a lazy initialisation exception I think. Ideally this project should not give lazy initialisation exceptions and should work and return json in wildlfly 8. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira