Request for notification when the contents of a field are accessed
in the target VM.
This event will be triggered when the specified field is accessed
by JavaTM programming
language code or by a
Java Native Interface (JNI) get function (Get<Type>Field,
GetStatic<Type>Field).
Access by JDI does not trigger this event.
When an enabled AccessWatchpointRequest is satisfied, an
event set containing an
AccessWatchpointEvent will be placed
on the EventQueue.
The collection of existing ExceptionRequests is
managed by the EventRequestManager
The collection of existing
watchpoints is
managed by the EventRequestManager.
Note that the modification
of a Field is not considered an access.