[AMQ-5251] Scheduler missing some synchronization

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 5.10.0
• Fix Version/s: 5.10.1, 5.11.0
• Component/s: Broker
• Assignee: Timothy A. Bish
• Reporter: james
• Created: 28/Jun/14 03:54
• Updated: 30/Jul/16 12:20
• Resolved: 28/Jun/14 14:22

Description

the org.apache.activemq.thread.Scheduler.executePeriodically() method should be synchronized since it modifies the timerTasks map.

Issue Links

• is related to: AMQ-5508 Broker shutdown race condition leads to "IllegalStateException: Timer already cancelled"
• is related to: AMQ-5543 Broker logs show repeated "java.lang.IllegalSt​ateException: Timer already cancelled." lines
• is related to: AMQ-6382 Getting Timer cancelled error in AMQ