Add polymorphic deserialization for event account.

[bloslo]

Description

Add polymorphic deserialization for the GHAppInstallation account field.
Fixes #1497

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (5380f59) 79.89% compared to head (1581500) 79.89%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1522   +/-   ##
=========================================
  Coverage     79.89%   79.89%           
  Complexity     2197     2197           
=========================================
  Files           209      209           
  Lines          6670     6670           
  Branches        364      364           
=========================================
  Hits           5329     5329           
  Misses         1127     1127           
  Partials        214      214           

Impacted Files	Coverage Δ
...ain/java/org/kohsuke/github/GHAppInstallation.java	92.10% <ø> (ø)

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[bloslo]

@bitwiseman Can you review my changes? I know checks are breaking, but this is because I change a method signature. I don't see how this can be avoided.

P.S. I used the StackOverflow link you referenced in the issue as a source to implement the changes.

[bitwiseman]

@bloslo
To address API breaks, you'll need to use WithBridgeMethods annotations. They preserve binary compatibility while letting you update the source API. Usage is described in the source file and there are plenty of examples in this project.

[bitwiseman]

Changes look good, nicely done!

Add bridge methods to fix API breaks. The bridge will need to be a custom conversion method. And you'll need to add a test that makes sure the scenario where someone calls the old GHUser method when the instance is now aGHOrganization still works the same as before. You don't have to improve the behavior, just make sure it isn't any more broken.

[Haarolean]

@bitwiseman is there a chance to get this merged in?

[bitwiseman]

@Haarolean
See my previous comment. There are API breaking changes that need to be addressed (using bridge methods) before this can be merged.