Thomas Heigl created WICKET-6824:
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Summary: Use concatenation instead of String.format for frequently
called methods
Key: WICKET-6824
URL: https://issues.apache.org/jira/browse/WICKET-6824
Project: Wicket
Issue Type: Improvement
Components: wicket-core
Affects Versions: 9.0.0
Reporter: Thomas Heigl
Assignee: Thomas Heigl
Attachments: image-2020-08-30-20-34-57-261.png,
image-2020-08-30-20-35-04-970.png
Two usages of {{String.format}} frequently show up in my production profiler:
!image-2020-08-30-20-34-57-261.png!
!image-2020-08-30-20-35-04-970.png!
Both methods are potentially called dozens or even hundreds of times for large
pages.
{{String.format}} has horrible performance and should mostly be used for
generating error messages and debug information. For a detailed analysis see:
[https://redfin.engineering/java-string-concatenation-which-way-is-best-8f590a7d22a8]
We should replace {{String.format}} with simple concatenation in both instances.
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