Add a method to Files that returns the file extension from a given file name. ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=24212884
Add a method to Files that returns the file extension from a given file name.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=24212884

ytfei/guava,dushmis/guava,KengoTODA/guava-libraries,Yijtx/guava,hceylan/guava,gmaes/guava,lisb/guava,SaintBacchus/guava,tobecrazy/guava,norru/guava,renchunxiao/guava,5A68656E67/guava,dubu/guava-libraries,yuan232007/guava,BollyCheng/guava,janus-project/guava.janusproject.io,mohanaraosv/guava,dubu/guava-libraries,npvincent/guava,DavesMan/guava,chen870647924/guava-libraries,Kevin2030/guava,njucslqq/guava,levenhdu/guava,jakubmalek/guava,marstianna/guava,qingsong-xu/guava,Overruler/guava-libraries,newrelic/guava-libraries,1yvT0s/guava,maidh91/guava-libraries,dushmis/guava,jakubmalek/guava,RoliMG/guava,anigeorge/guava,mohanaraosv/guava,witekcc/guava,codershamo/guava,ignaciotcrespo/guava,leogong/guava,google/guava,sander120786/guava-libraries,abel-von/guava,mway08/guava,hannespernpeintner/guava,KengoTODA/guava-libraries,qingsong-xu/guava,tli2/guava,newrelic/guava-libraries,0359xiaodong/guava,rob3ns/guava,mengdiwang/guava-libraries,clcron/guava-libraries,mbarbero/guava-libraries,maidh91/guava-libraries,mosoft521/guava,Yijtx/guava,cgdecker/guava,lisb/guava,cogitate/guava-libraries,Xaerxess/guava,ChengLong/guava,tunzao/guava,jsnchen/guava,Ranjodh-Singh/ranjodh87-guavalib,danielnorberg/guava-libraries,jackyglony/guava,ceosilvajr/guava,zcwease/guava-libraries,gmaes/guava,Ariloum/guava,baratali/guava,nulakasatish/guava-libraries,dpursehouse/guava,okaywit/guava-libraries,fengshao0907/guava-libraries,XiWenRen/guava,mgedigian/guava-bloom-filter,10045125/guava,levenhdu/guava,paddx01/guava-src,renchunxiao/guava,dnrajugade/guava-libraries,zcwease/guava-libraries,liyazhou/guava,maidh91/guava-libraries.jdk5backport,allalizaki/guava-libraries,yigubigu/guava,easyfmxu/guava,eidehua/guava,gvikei/guava-libraries,paplorinc/guava,AnselQiao/guava,yigubigu/guava,hceylan/guava,DaveAKing/guava-libraries,yuan232007/guava,licheng-xd/guava,mengdiwang/guava-libraries,berndhopp/guava,cklsoft/guava,Overruler/guava-libraries,mkodekar/guava-libraries,pwz3n0/guava,user234/setyon-guava-libraries-clone,xueyin87/guava-libraries,jiteshmohan/guava,jackyglony/guava,VikingDen/guava,mkeesey/guava-for-small-classpaths,mosoft521/guava,uschindler/guava,mgalushka/guava,mkodekar/guava-libraries,google/guava,kaoudis/guava,Xaerxess/guava,aiyanbo/guava,paddx01/guava-src,kucci/guava-libraries,SaintBacchus/guava,sunbeansoft/guava,witekcc/guava,SyllaJay/guava,tailorlala/guava-libraries,easyfmxu/guava,leesir/guava,kingland/guava,ytfei/guava,lowasser/guava-experimental,m3n78am/guava,lgscofield/guava,rob3ns/guava,baratali/guava,BollyCheng/guava,berndhopp/guava,aditya-chaturvedi/guava,DavesMan/guava,clcron/guava-libraries,sensui/guava-libraries,seanli310/guava,ignaciotcrespo/guava,Haus1/guava-libraries,VikingDen/guava,GitHub4Lgfei/guava,huangsihuan/guava,dmi3aleks/guava,manolama/guava,disc99/guava,montycheese/guava,disc99/guava,SyllaJay/guava,pwz3n0/guava,KengoTODA/guava,rgoldberg/guava,jiteshmohan/guava,leogong/guava,codershamo/guava,nulakasatish/guava-libraries,monokurobo/guava,mkeesey/guava-for-small-classpaths,jayhetee/guava,jedyang/guava,cogitate/guava-libraries,sunbeansoft/guava,abel-von/guava,dnrajugade/guava-libraries,gvikei/guava-libraries,EdwardLee03/guava,DucQuang1/guava,DaveAKing/guava-libraries,HarveyTvT/guava,jedyang/guava,taoguan/guava,Ranjodh-Singh/ranjodh87-guavalib,ben-manes/guava,aditya-chaturvedi/guava,flowbywind/guava,taoguan/guava,fengshao0907/guava-libraries,mbarbero/guava-libraries,huangsihuan/guava,yangxu998/guava-libraries,jankill/guava,elijah513/guava,scr/guava,EdwardLee03/guava,Akshay77/guava,xasx/guava,eidehua/guava,okaywit/guava-libraries,allenprogram/guava,rcpoison/guava,kgislsompo/guava-libraries,1yvT0s/guava,anigeorge/guava,weihungliu/guava,liyazhou/guava,flowbywind/guava,elijah513/guava,xasx/guava,juneJuly/guava,GabrielNicolasAvellaneda/guava,tunzao/guava,npvincent/guava,kaoudis/guava,mgalushka/guava,user234/setyon-guava-libraries-clone,binhvu7/guava,RoliMG/guava,DucQuang1/guava,Akshay77/guava,typetools/guava,yf0994/guava-libraries,lijunhuayc/guava,monokurobo/guava,cklsoft/guava,r4-keisuke/guava,marstianna/guava,GabrielNicolasAvellaneda/guava,dpursehouse/guava,allalizaki/guava-libraries,AnselQiao/guava,jsnchen/guava,chen870647924/guava-libraries,sarvex/guava,ChengLong/guava,GitHub4Lgfei/guava,yanyongshan/guava,jankill/guava,KengoTODA/guava,ningg/guava,google/guava,sebadiaz/guava,hannespernpeintner/guava,jamesbrowder/guava-libraries,licheng-xd/guava,mosoft521/guava,fengshao0907/guava,allenprogram/guava,xueyin87/guava-libraries,yanyongshan/guava,janus-project/guava.janusproject.io,Balzanka/guava-libraries,lijunhuayc/guava,0359xiaodong/guava,tobecrazy/guava,rcpoison/guava,jayhetee/guava,5A68656E67/guava,m3n78am/guava,kingland/guava,HarveyTvT/guava,typetools/guava,thinker-fang/guava,lowasser/guava-experimental,thinker-fang/guava,kucci/guava-libraries,paplorinc/guava,leesir/guava,njucslqq/guava,tailorlala/guava-libraries,weihungliu/guava,seanli310/guava,tli2/guava,XiWenRen/guava,ningg/guava,sander120786/guava-libraries,aiyanbo/guava,yangxu99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