Hi Guys I am getting that on server.log 2014-07-20 13:02:25,453 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.deployment.unit."legacy_restapi.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."legacy_restapi.war".POST_MODULE: Failed to process phase POST_MODULE of deployment "legacy_restapi.war" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc.jar:1.0.2.GA] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc.jar:1.0.2.GA] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_60] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_60] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_60] Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: JBAS011232: Only one JAX-RS Application Class allowed. org.ovirt.engine.api.restapi.BackendApplication org.ovirt.engine.api.restapi.BackendApplication at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.scan(JaxrsScanningProcessor.java:209) at org.jboss.as.jaxrs.deployment.JaxrsScanningProcessor.deploy(JaxrsScanningProcessor.java:105) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] ... 5 more I saw that Juan H did some changes last THU (http://gerrit.ovirt.org/#/c/30222) but even when I had re-based on a commit before this patch merge, I got the same error. Any ideas ? Thanks Eli Mesika