 Committer: Hongbiao Yang <hyang22@hydra27.eecs.utk.edu> 	modified:   SearchEngine.java 	handle exception elegantly when file is missing
 Committer: Hongbiao Yang <hyang22@hydra27.eecs.utk.edu>
	modified:   SearchEngine.java
	handle exception elegantly when file is missing

HongbiaoYang/MapReduceSearch,HongbiaoYang/MapReduceSearch