I had to define the classloading configurations definitions to resolve ClassNotFoundException thrown by Quartz while loading the jobs from the data store(Oracle).
My web application is based on Adobe Flex and clustered LiveCycle Data services(LCDs). LCDs uses jgroups for clustering. With the custom classloading definitions, the LCDs clustering is not able to find its peer due to conflict in the jgroups.jar file version with the one used by JBoss. Jgroups version used by JBoss is 2.6.10.GA while the one used by LCDs is 2.7.0.GA.