Message broker thread pools should be set up in allowCoreThreadTimeOut mode [SPR-12249]

[spring-projects-issues]

Juergen Hoeller opened SPR-12249 and commented

ThreadPoolTaskExecutor setup for message brokers, as in TaskExecutorRegistration and MessageBrokerBeanDefinitionParser, should use the allowCoreThreadTimeOut mode (which we can reliably use on JDK 6+ now). Otherwise, the thread pool won't dynamically shrink below the core pool size (number of processors x2 by default).

---

Affects: 4.1 GA

Issue Links:

• WebSocketMessageBrokerConfigurationSupport requiring JDK 7+ due to setRemoveOnCancelPolicy [SPR-12238] #16852 WebSocketMessageBrokerConfigurationSupport requiring JDK 7+ due to setRemoveOnCancelPolicy

Referenced from: commits 3836aa0