SOLR-16540 Fix errors importing main and branch_9x into eclipse

[stillalex]

https://issues.apache.org/jira/browse/SOLR-16540

Description

Updates needed for a clean Eclipse project import.
Updated a few git/build settings to ignore eclipse generated files.
Removed 2 unnecessary package-info files.
Renamed one test that was clashing.

Solution

Please provide a short description of the approach taken to implement your solution.

Tests

Please describe the tests you've developed or run to confirm this patch implements the feature or solves the problem.

Checklist

Please review the following and check all that apply:

• I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• I have created a Jira issue and added the issue ID to my pull request title.
• I have given Solr maintainers access to contribute to my PR branch. (optional but recommended)
• I have developed this patch against the main branch.
• I have run ./gradlew check.
• I have added tests for my changes.
• I have added documentation for the Reference Guide

[gerlowskija]

A few preliminary questions/comments.

Also, I assume these are all fixes you needed after running the ./gradlew eclipse command?

[gerlowskija]

I think we usually reserve CHANGES.txt for things a user might care about on upgrading. Internal refactors, doc changes, or dev-experience improvements don't usually get mentioned I don't think.

[stillalex]

I put it under 'Other Changes', but sure I can remove it

[stillalex]

removed

[gerlowskija]

[Q] What do these package-info files have to do with importing into Eclipse? Do they cause problems in some way?

[stillalex]

they have a name clash with existing files under the same package in 'source' folders. all of them are under 'test' folders, I think the current situation could be a mistake.

[stillalex]

adding to this:

for the file solr/core/src/test/org/apache/solr/handler/admin/api/package-info.java these are the 2 clashing

• https://github.com/apache/solr/blob/main/solr/core/src/java/org/apache/solr/handler/admin/api/package-info.java
• https://github.com/apache/solr/blob/main/solr/core/src/test/org/apache/solr/handler/admin/api/package-info.java

[stillalex]

Also, I assume these are all fixes you needed after running the ./gradlew eclipse command?

yes. and during the check command

[stillalex]

@gerlowskija gentle ping. any open questions I need to address?

[gerlowskija]

Nope, thanks for clarifying! I'm going to test it out locally today and plan to merge pending any surprises.

[stillalex]

thank you @gerlowskija!

[stillalex]

@gerlowskija do you want to mark SOLR-16540 as resolved too?