I think we'd first need an issue explaining what is the problem to fix.

Ok, use of LinkedHashMap in itself is acceptable, retaining order possibly useful, with modest (probably non-measurable) overhead.

But adding overhead of reordering for every use is not good -- many users would get penalized despite not caring about ordering.

So if we can figure out how to insert values in order, +1.

@JooHyukKim knows this area pretty well and can probably help.

But adding overhead of reordering for every use is not good -- many users would get penalized despite not caring about ordering.

You mean the recursion? Is that measurable?

But adding overhead of reordering for every use is not good -- many users would get penalized despite not caring about ordering.

You mean the recursion? Is that measurable?

No I mean reordering in general; should be possible to just retain insert order without essentially ordering twice.