We can see these 2 ERRORs from "ServerService Thread Pool -- 82" in between the "Agent Heartbeat"
10:23:46,176 ERROR [landing_cat] (ServerService Thread Pool -- 82) com.myportal.portalwar.listener.ContextListener - Version of PortalWar : 1378987432 10:23:47,103 ERROR [landing_cat] (ServerService Thread Pool -- 82) com.myportal.portalwar.listener.ContextListener - Version of config.xml : 5
We understand that there is handling here which has conflict with the MBean polling that Agent JMX is doing at same time on "Agent Heartbeat" thread.
Introscope Agent 10.5.1.8 JBoss EAP: 7.0.7 (standalone mode) Openjdk: 1.8.0_141 Red Hat Enterprise Linux Server release 7.4
We have created a hotfix build to add some delay before we start to poll MBeans, to avoid the conflict during startup.
The required build is 10.5.1 HF62 (DE339968)
The start up delay to poll for JMX is configurable with this property, only with the above hotfix build.