Version 2.13.2 uses `Method.getParameterCount()` which is not supported on Android before API 26

[finiasz]

After updating from jackson 2.13.1 to jackson 2.13.2 I noticed my app no longer worked on Android API 21.

After digging into the code I found the issue at line 187 of AnnotatedMethodCollector.java:

• version 2.13.1 used m.getParameterTypes().length
• version 2.13.2 uses m.getParameterCount()

However, the getParameterCount() method requires API 26 on Android.

For now, I'm sticking to version 2.13.1 😄

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EDIT: the fix included the official 2.13.3 release

[cowtowncoder]

Oh crap. :-(

This was not intentional -- but teaches me to not cherry pick changes into patch. PR #3293 should have gone in 2.14(.0).

I wonder if it was worth reverting this for 2.13.3, keeping for 2.14?
I mean, for 2.13.2, damage is done (alas). But still there is likely to be 2.13.3 which would at least allow latest 2.13.x to be usable on Android API 21.

[finiasz]

I'm not sure my point of view is relevant (I'm a bit biased as I mostly use Jackson on Android), but maintaining a 2.13.x branch (with security patches), that is compatible with older Android versions would be perfect for me.

And if branch 2.14 breaks support for Android API <26, that's not a problem. We'll upgrade to this branch once we drop support for these Android versions in our app.

[cowtowncoder]

@finiasz I made changes to revert #3293 from 2.13, so things should work in 2.13.3.

I pushed 2.13.3-SNAPSHOT to Sonatype snapshot repository so if there's any chance you could verify functioning, that'd be great -- there are quite a few places where getParameterCount() is called, but not all of them are related to Method.
But I hope I did not miss something.

[finiasz]

Many thanks for your time @cowtowncoder, I'll check this tomorrow as it's getting late here in France :)

[cowtowncoder]

Perfect, thank you @finiasz!