Fix 3496063: XmlGen.getVimClass(...) is not thread safe
Fix 3496063: XmlGen.getVimClass(...) is not thread safe

yavijava/yavijava,yavijava/yavijava-samples,yavijava/yavijava-samples,vmware-serengeti/yavijava-samples,vThinkBeyondVM/yavijava-samples,vmware-serengeti/yavijava-samples,omar-infinio/yavijava,n4ybn/yavijava,hubertverstraete/yavijava,michaelrice/yavijava