ClassCastException in AttributeChangeNotificationFilter

In JBoss 3.2.5, the isNotificationEnabled method of
javax.management.AttributeChangeNotificationFilter
throws a ClassCastException when passed an argument
that is not of type AttributeChangeNotification. The
JMX 1.2 specification indicates that, as an
implementation of NotificationFilter, it should return
false in this case.

The class
com.itgssi.gatejmx.support.StructureChangeNotification
referenced in the exception trace in the attached
console log is a custom implementation of
javax.management.Notification. The exception occurs
when an application XMBean passes a
StructureChangeNotification to sendNotification.