Traversal traversal = g.inject(Arrays.asList(1L, 2L)).unfold().is(P.lt(__.constant(2L)));
System.out.println(TraversalUtil.getBytecode(traversal));
System.out.println(traversal);
System.out.println(traversal.toList());

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[inject([1, 2]), unfold, is(lt,[constant(2)])]
[InjectInitial([1, 2]), UnfoldFlatMap, IsFilter(lt,[ConstantMap(2)])]
[1]