Koen De Groote created LUCENE-8975:
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Summary: Code Cleanup: Use entryset for map iteration wherever
possible.
Key: LUCENE-8975
URL: https://issues.apache.org/jira/browse/LUCENE-8975
Project: Lucene - Core
Issue Type: Improvement
Affects Versions: 8.2
Reporter: Koen De Groote
Simple, non-important code cleanup.
Again, to clarify, please don't bother yourself with this ticket on company
time, on personal time you could be working on something that makes you money
or improves the product for your feature personally.
This entire ticket is an afterthough. A look back at the code base that most
people don't have the time for.
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While true that using `entrySet()` is really only an improvement for traversing
a TreeMap(at least that's how it was in JDK8), it's a good practice in general
to use it over keySet(), if you then use that keyset to do an extra lookup to
get the value as well as the key.
So that's what this ticket is.
All changes were done automatically via Intellij's built-in code analysis.
Putting this on LUCENE because code both in lucene and solr was changed.
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