raphw / byte-buddy / #788

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ParameterList - Cache the size and avoid iterator pattern (#1848)

I have been working on a very large monolith using Hibernate ORM and
these particular methods were quite high in the profiling I made.

Using this simple trick reduces things quite a lot, for what I think is
an acceptable trade-off of the code looking a bit old school.

FWIW, we have been fighting against iterator() in Quarkus in critical
hot paths as it generates more allocations than simply going through the
list.

What is specific here is that size() is also quite slow in some cases,
and it's also called by hasNext().

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