Fix generic type argument bug.
Fix generic type argument bug.

dkm2110/veyor,gyeongin/reef,yunseong/incubator-reef,jwang98052/reef,yunseong/incubator-reef,yingdachen/incubator-reef,tcNickolas/incubator-reef,zerg-junior/incubator-reef,tcNickolas/reef,apache/reef,dongjoon-hyun/reef,apache/incubator-reef,markusweimer/incubator-reef,anupam128/reef,gyeongin/reef,dongjoon-hyun/reef,dkm2110/veyor,yunseong/reef,dongjoon-hyun/reef,tcNickolas/reef,tcNickolas/incubator-reef,anupam128/reef,yingdachen/incubator-reef,afchung/incubator-reef,dkm2110/veyor,apache/reef,dongjoon-hyun/incubator-reef,yunseong/reef,jwang98052/reef,taegeonum/incubator-reef,anupam128/reef,swlsw/incubator-reef,afchung/incubator-reef,dkm2110/Microsoft-cisl,beysims/reef,dkm2110/veyor,yingdachen/incubator-reef,shulmanb/reef,singlis/reef,dafrista/incubator-reef,zerg-junior/incubator-reef,apache/incubator-reef,jsjason/incubator-reef,yunseong/incubator-reef,taegeonum/incubator-reef,afchung/reef,gyeongin/reef,jwang98052/incubator-reef,dafrista/incubator-reef,shulmanb/reef,dongjoon-hyun/reef,shravanmn/reef,markusweimer/reef,singlis/reef,beysims/reef,dongjoon-hyun/incubator-reef,dongjoon-hyun/reef,apache/reef,markusweimer/incubator-reef,dongjoon-hyun/incubator-reef,zerg-junior/incubator-reef,nachocano/incubator-reef,markusweimer/reef,markusweimer/incubator-reef,jwang98052/reef,afchung/reef,tcNickolas/reef,singlis/reef,beysims/reef,tcNickolas/incubator-reef,singlis/reef,jsjason/incubator-reef,shulmanb/reef,shravanmn/reef,apache/incubator-reef,jwang98052/incubator-reef,jwang98052/reef,motus/reef,taegeonum/incubator-reef,swlsw/incubator-reef,dongjoon-hyun/incubator-reef,jsjason/incubator-reef,apache/reef,zerg-junior/incubator-reef,dougmsft/reef,anupam128/reef,afchung/incubator-reef,swlsw/incubator-reef,singlis/reef,jwang98052/incubator-reef,markusweimer/incubator-reef,apache/incubator-reef,apache/incubator-reef,dongjoon-hyun/incubator-reef,shravanmn/reef,dougmsft/reef,dafrista/incubator-reef,jsjason/incubator-reef,afchung/incubator-reef,DifferentSC/incubator-reef,tcNickolas/reef,bgchun/incubator-reef,afchung/reef,afchung/incubator-reef,yunseong/incubator-reef,dougmsft/reef,motus/reef,shravanmn/reef,motus/reef,yunseong/reef,beysims/reef,yunseong/reef,jsjason/incubator-reef,dafrista/incubator-reef,apache/incubator-reef,taegeonum/incubator-reef,nachocano/incubator-reef,yunseong/incubator-reef,nachocano/incubator-reef,swlsw/incubator-reef,tcNickolas/incubator-reef,jwang98052/reef,markusweimer/reef,yunseong/incubator-reef,zerg-junior/incubator-reef,dougmsft/reef,dougmsft/reef,zerg-junior/incubator-reef,tcNickolas/incubator-reef,bgchun/incubator-reef,markusweimer/reef,gyeongin/reef,jwang98052/reef,dkm2110/Microsoft-cisl,markusweimer/reef,dongjoon-hyun/incubator-reef,afchung/reef,afchung/incubator-reef,yingdachen/incubator-reef,afchung/incubator-reef,markusweimer/incubator-reef,anupam128/reef,shravanmn/reef,nachocano/incubator-reef,yunseong/reef,markusweimer/reef,dongjoon-hyun/reef,dkm2110/veyor,DifferentSC/incubator-reef,DifferentSC/incubator-reef,swlsw/incubator-reef,shulmanb/reef,apache/reef,afchung/reef,tcNickolas/reef,yunseong/incubator-reef,markusweimer/reef,bgchun/incubator-reef,nachocano/incubator-reef,shulmanb/reef,yingdachen/incubator-reef,shulmanb/reef,DifferentSC/incubator-reef,DifferentSC/incubator-reef,singlis/reef,dougmsft/reef,jwang98052/incubator-reef,dafrista/incubator-reef,dkm2110/veyor,tcNickolas/reef,afchung/reef,dongjoon-hyun/incubator-reef,yunseong/reef,jwang98052/incubator-reef,tcNickolas/incubator-reef,gyeongin/reef,markusweimer/incubator-reef,anupam128/reef,singlis/reef,apache/reef,dkm2110/Microsoft-cisl,jsjason/incubator-reef,gyeongin/reef,swlsw/incubator-reef,yingdachen/incubator-reef,shravanmn/reef,DifferentSC/incubator-reef,motus/reef,yunseong/reef,jwang98052/incubator-reef,shravanmn/reef,dafrista/incubator-reef,tcNickolas/incubator-reef,tcNickolas/reef,taegeonum/incubator-reef,dafrista/incubator-reef,motus/reef,zerg-junior/incubator-reef,bgchun/incubator-reef,DifferentSC/incubator-reef,dkm2110/Microsoft-cisl,dkm2110/veyor,motus/reef,dkm2110/Microsoft-cisl,dougmsft/reef,swlsw/incubator-reef,apache/incubator-reef,anupam128/reef,jwang98052/reef,dkm2110/Microsoft-cisl,markusweimer/incubator-reef,shulmanb/reef,jsjason/incubator-reef,motus/reef,yingdachen/incubator-reef,nachocano/incubator-reef,jwang98052/incubator-reef,taegeonum/incubator-reef,afchung/reef,bgchun/incubator-reef,beysims/reef,dongjoon-hyun/reef,dkm2110/Microsoft-cisl,gyeongin/reef,apache/reef,nachocano/incubator-reef