return new LockResourceTracker(lookupFailureCallback, vnaDataflow);
return new LockResourceTracker( lookupFailureCallback, classContext.getCFG(method), classContext.getValueNumberDataflow(method), classContext.getIsNullValueDataflow(method));
			        public LockResourceTracker createResourceTracker(ClassContext classContext, Method method)			                throws CFGBuilderException, DataflowAnalysisException {				        ValueNumberDataflow vnaDataflow = classContext.getValueNumberDataflow(method);				        RepositoryLookupFailureCallback lookupFailureCallback = classContext.getLookupFailureCallback();				        return new LockResourceTracker(lookupFailureCallback, vnaDataflow);			        }