counter = counter + callbacks.size();
System.out.println("callback counter = " + counter);
for(int i = 0; i < callbacks.size(); i++)
{
Object o = ((Callback) callbacks.get(i)).getCallbackObject();
TestCallback cb = (TestCallback)o;
cbNum = cb.getCallbackNumber();
System.out.println("Callback number: " + cbNum);
}
assertEquals(counter, cbNum);
// need to give time for server to clean up mem