Do not populate repo list in case of installation:deleted event

[Haarolean]

Description

Closes #1689
That's a proposition of a solution I came up with.
Unfortunately I haven't been able to run the whole test suite due to the same repeating exception occurring and I didn't have time to look into that.

[ERROR] Tests run: 66, Failures: 0, Errors: 5, Skipped: 11, Time elapsed: 2.251 s <<< FAILURE! - in org.kohsuke.github.AppTest
[ERROR] testCreateIssue(org.kohsuke.github.AppTest)  Time elapsed: 0.026 s  <<< ERROR!
org.kohsuke.github.GHIOException: Failed to set the custom verb
        at org.kohsuke.github.internal.GitHubConnectorHttpConnectorAdapter.send(GitHubConnectorHttpConnectorAdapter.java:82)
        at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:432)
        at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:403)
        at org.kohsuke.github.Requester.send(Requester.java:70)
        at org.kohsuke.github.GHIssue.edit(GHIssue.java:273)
        at org.kohsuke.github.GHIssue.close(GHIssue.java:294)
        at org.kohsuke.github.AppTest.testCreateIssue(AppTest.java:274)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
        at java.base/java.lang.reflect.Method.invoke(Method.java:577)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at org.kohsuke.github.junit.WireMockMultiServerRule$1.evaluate(WireMockMultiServerRule.java:113)
        at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
        at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
        at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
        at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
        at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
        at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
Caused by: java.io.IOException: Failed to set the custom verb
        at org.kohsuke.github.internal.GitHubConnectorHttpConnectorAdapter.setRequestMethod(GitHubConnectorHttpConnectorAdapter.java:129)
        at org.kohsuke.github.internal.GitHubConnectorHttpConnectorAdapter.setupConnection(GitHubConnectorHttpConnectorAdapter.java:97)
        at org.kohsuke.github.internal.GitHubConnectorHttpConnectorAdapter.send(GitHubConnectorHttpConnectorAdapter.java:79)
        ... 35 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field protected java.lang.String java.net.HttpURLConnection.method accessible: module java.base does not "opens java.net" to unnamed module @2c8b1039
        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
        at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:180)
        at java.base/java.lang.reflect.Field.setAccessible(Field.java:174)
        at org.kohsuke.github.internal.GitHubConnectorHttpConnectorAdapter.setRequestMethod(GitHubConnectorHttpConnectorAdapter.java:126)
        ... 37 more

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[bitwiseman]

@Haarolean
Sorry for the slow response. Thank you for working on this.

Looking at this -
https://docs.github.com/en/webhooks-and-events/webhooks/webhook-events-and-payloads#installation

Maybe the right solution here is to change the event to have private List<GHInstallation.Repository> repositories;, add a static class called GHInstallation.Repository that has only the fields listed under Properties of repositories in the docs., and add a method public List<GHInstallation.Repository> getRawRepositories(). Then, make the getRepositories() method only load it's list of repositories the first time it is called (and have it throw a meaningful error message when the action is deleted).

Either way we'll need an additional test for the installation that covers created since deleted is going to be a special case. Tell me if you want help setting up the test.

[Haarolean]

@bitwiseman I'll try to look into this later this week. Both the suggested approach and a seprate test.

[Haarolean]

@bitwiseman I think I've done what we've discussed above. I've used a real recent webhook payload, but replaced a repo within it with the one we already have captured data for, I don't think that's critical to capture a snapshot here for just that.
Let me know what you think!

[codecov]

Codecov Report

Attention: Patch coverage is 89.47368% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 80.73%. Comparing base (1aa7178) to head (acc027f).
Report is 2 commits behind head on main.

Files	Patch %	Lines
...c/main/java/org/kohsuke/github/GHEventPayload.java	89.47%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1690      +/-   ##
============================================
+ Coverage     80.66%   80.73%   +0.06%     
  Complexity     2342     2342              
============================================
  Files           220      220              
  Lines          7082     7096      +14     
  Branches        379      379              
============================================
+ Hits           5713     5729      +16     
  Misses         1132     1132              
+ Partials        237      235       -2     

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[Haarolean]

@bitwiseman thank you!