Related Objects: Get Hosts error

I'm trying to get all the Related Objects -> Hosts from vSphere web services for my application.  However when I do so, I get an error, and no hosts are returned.


I looked at the sample code for ChassisB and I found the function ChassisRackVSphereDataAdapter::initializeHostRelations(), which gets Host references from vCenter and adds them to the Chassis during initialization.   The function getHosts() creates a QuerySpec to getData from the dataService.  BTW, the function initializeHostRelations() is called whenever processQuery is invoked, and returns after initialization.


I tried to reuse this logic for my application.  However, when I attempt to call the getHosts() function during the startup of my app, I get the following errors:


    com.vmware.vise.util.session.SessionUtil                          Requesting threadlocal http request before it's been set
    com.vmware.vise.util.session.SessionUtil                          Existing httpRequest already null. Possible unbalanced clear.


Any ideas what this means?  Or suggestions?


Thanks,


Eric