ValueNumberAnalysis analysis = new ValueNumberAnalysis(methodGen, dfs, lookupFailureCallback);
ValueNumberAnalysis analysis = new ValueNumberAnalysis(methodGen, dfs, getLookupFailureCallback());
		protected ValueNumberDataflow analyze(Method method) throws DataflowAnalysisException, CFGBuilderException {			MethodGen methodGen = getMethodGen(method);			DepthFirstSearch dfs = getDepthFirstSearch(method);			ValueNumberAnalysis analysis = new ValueNumberAnalysis(methodGen, dfs, lookupFailureCallback);			CFG cfg = getCFG(method);			ValueNumberDataflow vnaDataflow = new ValueNumberDataflow(cfg, analysis);			vnaDataflow.execute();			return vnaDataflow;		}