class java/util/stream/Stream
collect
 <R:Ljava/lang/Object;A:Ljava/lang/Object;>(Ljava/util/stream/Collector<-TT;TA;TR;>;)TR;
 <R:Ljava/lang/Object;A:Ljava/lang/Object;>(Ljava/util/stream/Collector<-TT;TA;TR;>;)T1R;