Streams API at bytecode level - rest of bytecode

Do-while loop:
      49: aload_1
      50: aload_2
      51: iload_3
      52: aaload
      53: invokeinterface #69,  2           // InterfaceMethod java/util/function/Consumer.accept:(Ljava/lang/Object;)V
      58: iinc          3, 1
      61: iload_3
      62: iload         4
      64: if_icmplt     49

StatelessOp#accept() - wrapping the filter() operation
      0: aload_0
      1: getfield      #48                 // Field this$1:Ljava/util/stream/ReferencePipeline$2;
      4: getfield      #47                 // Field java/util/stream/ReferencePipeline$2.val$predicate:Ljava/util/fnction/Predicate;
      7: aload_1
      8: invokeinterface #51,  2           // InterfaceMethod java/util/function/Predicate.test:(Ljava/lang/Object;
     13: ifeq          26
     16: aload_0
     17: getfield      #49                 // Field downstream:Ljava/util/stream/Sink;
     20: aload_1
     21: invokeinterface #53,  2           // InterfaceMethod java/util/stream/Sink.accept:(Ljava/lang/Object;)V