Using synchronization primitives within JMX-Beans

ant Jan 27, 2005 5:10 AM

The EJB specification forbids using synchronization primitives within an EJB (Chapter 24.1.2, page 494).

An enterprise Bean must not use thread synchronization primitives to synchronize execution of multiple instances.

What about the use of such primitives in scheduler JMX-Beans provided by JBoss-AS? I have a JMX-Bean implementing Schedulable and MessageListener interfaces. Two threads compete against the scheduler object via perform() and onMessage() methods. To avoid race conditions both methodes have to be synchronized.

Do I have to expect any conlicts?

1. Re: Using synchronization primitives within JMX-Beans

dimitris Jan 27, 2005 5:32 AM (in response to ant)

There are no synchronization constraints for MBeans, so attributes and operations may be called concurrently and depending on the usage pattern of your MBean, your code should try to be thread safe.
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