Here is my log.the error occured after i restart the jira service.
2017-06-20 17:45:00,226 JIRA-Bootstrap ERROR [c.a.jira.startup.LauncherContextListener] Unable to start JIRA.
java.lang.IllegalArgumentException: Multiple entries with same key: sd.custom.notification.batch.send=Mon Jun 19 16:48:04 CST 2017 and sd.custom.notification.batch.send=Mon Jun 19 16:48:04 CST 2017
at com.google.common.collect.ImmutableMap.checkNoConflict(ImmutableMap.java:150)
at com.google.common.collect.RegularImmutableMap.checkNoConflictInBucket(RegularImmutableMap.java:104)
at com.google.common.collect.RegularImmutableMap.<init>(RegularImmutableMap.java:70)
at com.google.common.collect.ImmutableMap$Builder.build(ImmutableMap.java:254)
at com.atlassian.jira.scheduler.OfBizClusteredJobDao.refresh(OfBizClusteredJobDao.java:111)
