Traffic of ClassPrepareRequests

Developers of J2ME support for NetBeans did measuring of the JDWP traffic, because excessive traffic makes mobility debugging problematic.
They have found that right after the attach, there is a lot of traffic related to class prepare events. It was found that there are two related requests created in the VirtualMachineImpl constructor - ClassPrepareRequest and ClassUnloadRequest. As a response to them a huge traffic is being sent from the debuggee.

Is it possible to transfer just those ClassPrepareEvents for which explicit ClassPrepareRequest was submitted?
This traffic is not only a problem for J2ME debugging, but also for remote debugging on a slow connection. See e.g. https://netbeans.org/bugzilla/show_bug.cgi?id=188732