Quartz Scheduler is not working in BPMS 6 with Oracle persistence

Solution Verified - Updated -

Issue

We are getting the below error in our JBPM instances.

22:09:58,803 ERROR [org.quartz.impl.jdbcjobstore.JobStoreCMT] (QuartzScheduler_jBPMClusteredScheduler-dvmcde291424267878564_ClusterManager) ClusterManager: Error managing cluster: Failure identifying failed instances when checking-in: Couldn't load delegate class: org.quartz.impl.jdbcjobstore.oracle.OracleDelegate from [Module "deployment.business-central.war:main" from Service Module Loader]: org.quartz.JobPersistenceException: Failure identifying failed instances when checking-in: Couldn't load delegate class: org.quartz.impl.jdbcjobstore.oracle.OracleDelegate from [Module "deployment.business-central.war:main" from Service Module Loader] [See nested exception: org.quartz.impl.jdbcjobstore.NoSuchDelegateException: Couldn't load delegate class: org.quartz.impl.jdbcjobstore.oracle.OracleDelegate from [Module "deployment.business-central.war:main" from Service Module Loader]]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport.findFailedInstances(JobStoreSupport.java:3287) [quartz-1.8.5.jar:]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport.clusterCheckIn(JobStoreSupport.java:3340) [quartz-1.8.5.jar:]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport.doCheckin(JobStoreSupport.java:3206) [quartz-1.8.5.jar:]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:3825) [quartz-1.8.5.jar:]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:3861) [quartz-1.8.5.jar:]
Caused by: org.quartz.impl.jdbcjobstore.NoSuchDelegateException: Couldn't load delegate class: org.quartz.impl.jdbcjobstore.oracle.OracleDelegate from [Module "deployment.business-central.war:main" from Service Module Loader]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport.getDelegate(JobStoreSupport.java:3090) [quartz-1.8.5.jar:]
        at org.quartz.impl.jdbcjobstore.JobStoreSupport.findFailedInstances(JobStoreSupport.java:3250) [quartz-1.8.5.jar:]
        ... 4 more

Quartz is configured to work with Oracle:

#===============================================================
# Configure JobStore
#===============================================================
org.quartz.jobStore.misfireThreshold = 60000
org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreCMT
org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.oracle.OracleDelegate
#...
#===============================================================
# Configure Datasources
#===============================================================
org.quartz.dataSource.managedDS.jndiURL=jboss/datasources/quartzDS

Environment

  • Red Hat JBoss BPM Suite
    • 6.0.3
    • 6.1.X

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