Improve memory consumption of Parameter and Parameters [DATACMNS-925]

[spring-projects-issues]

Christoph Dreis opened DATACMNS-925 and commented

Hey,

I recently noticed in our loadtests a small but noticeable heap pressure coming from Parameters and Parameter. Some ArrayLists are initialized without an initial capacity although they are known in those cases - which in the end is not critical but also not optimal. Additionally, there is one call to gather the return type of a method, that constructs a ClassTypeInformation and the underlying map for the type variables which could be saved in some cases.

I attached a small PR to optimize those places.

Cheers,
Christoph

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Referenced from: pull request #180

Backported to: 1.12.5 (Hopper SR5)

[spring-projects-issues]

Oliver Drotbohm commented

Well spotted! I've left a few comments on the proposed PR. Happy to merge it beyond that

[spring-projects-issues]

Christoph Dreis commented

Have commented it myself. Thanks for taking the time!

[spring-projects-issues]

Christoph Dreis commented

I hope you don't mind if I ask for feedback on the PR (again)

[spring-projects-issues]

Oliver Drotbohm commented

Sorry about the delay, stuck in travel /o. All good, about to merge it, with that tiny tweak

[spring-projects-issues]

Christoph Dreis commented

You're the man. Thank you!