I this what we want? | @ManagementProperty(name="max-pool-size", managed = true) | @ManagementObjectRef(name = "JBossManagedConnectionPool", type = "LocalTx") | public void setMaxSize(int maxSize) | { | this.maxPoolSize = maxSize; | } | Since this way we override the underlying simple values of the attachment metadata with information about managed object ref. "adrian(a)jboss.org" wrote : In fact, it should be on each ManagedProperty since there is no guarantee | one ManagedObject maps to one context on the bus. | e.g. The DataSource maps to four JMX MBeans (ConnectionManager, ConnectionPool, | ConnectionFactory, JNDIBinder). How else to bind a property with a runtime component that is not mapped to declared MO's runtime component (if exists)? And at the same time preserve the underlying attachment's values. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4092809#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...