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https://issues.apache.org/jira/browse/COLLECTIONS-803?focusedWorklogId=720461&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-720461
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ASF GitHub Bot logged work on COLLECTIONS-803:
----------------------------------------------
Author: ASF GitHub Bot
Created on: 03/Feb/22 22:20
Start Date: 03/Feb/22 22:20
Worklog Time Spent: 10m
Work Description: Simulant87 commented on pull request #276:
URL:
https://github.com/apache/commons-collections/pull/276#issuecomment-1029455359
@garydgregory Thank you for the feedback.
I added a test the verifies the `convertKey` method is only called once,
which fails currently on the master branch without the production code changes
provided.
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Issue Time Tracking
-------------------
Worklog Id: (was: 720461)
Time Spent: 0.5h (was: 20m)
> CaseInsensitiveMap prevent duplicate key conversion on put
> ----------------------------------------------------------
>
> Key: COLLECTIONS-803
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-803
> Project: Commons Collections
> Issue Type: Improvement
> Components: Map
> Affects Versions: 4.4
> Reporter: Simulant
> Priority: Minor
> Labels: performance
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> When adding a new item into a {{CaseInsensitiveMap}} the {{convertKey(key)}}
> method is called twice, once in the {{put(key, value)}} method and second in
> the {{createEntry(next, hashCode, key, value)}} method. The result could be
> re-used resulting in a better performance.
> Depending on the {{toString()}} implementation of the key and the resulting
> length of the key before the lower case conversion the operation can get
> expensive and should not be called twice, as the {{CaseInsensitiveMap}}
> overwrites the {{convertKey(key)}} method and makes it more expensive and
> depending on the input unlike in the implementation of the
> {{AbstractHashedMap}}.
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