#7988: name the missing key instead of its hash code

[yegor256]

Closes #7988.

A caller who asked a map for a key that is not there was told

Object by hash code 96354 from given key does not exists

— broken grammar, and a polynomial hash the caller never saw standing in for the key they hold. The message is now The key three is not in the map, built from kbts, the bytes the map already dataized the key into.

Those bytes are printed with %s where they decode as UTF-8 and with %x where they do not, the two arms wrapped in recovered: %s terminates on bytes that are not UTF-8, and that termination is what selects the hexadecimal form. So a key that is not text still reports something the caller can recognise.

can-format-the-error-message-of-an-absent-key pins the text, reading the reason back through the cant-get fallback with I, the way string.at's message tests do. It asserts the new wording, so it cannot pass against master.

TestEOmap is green (22 tests) on a local mvn clean test -pl :eo-runtime -Deo.deadline=3600.

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[github-actions]

These counts changed in this branch,
while the lower each one of them, the better:

Metric	master	branch	change
positive-tests	1808	1809	+1

They are defined in .github/workflows/counts.yml

[yegor256]

Two things a reviewer will want to know before reading the diff.

The red qulice check is not this diff. The job never reached a check: Maven could not resolve the plugin at all.

[ERROR] No plugin found for prefix 'qulice' in the current project and in the plugin groups
[…] available from the repositories [local (/home/runner/.m2/repository),
oss.sonatype.org, central]

The step runs with -Deo.skip, so no .eo file is even read by it, and the same job is green on the five sibling branches pushed in the same minutes. A re-run should clear it; I have no permission to trigger one from here.

PR #8012 covers the same issue and was opened ahead of this one. Worth picking one and closing the other rather than reviewing both.

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[Copilot]

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[yegor256]

The qulice check is failing. Could you please investigate and fix the issues before this can be merged?

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[yegor256]

qulice is red on this PR. Not merging until CI is green.

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[yegor256]

Not merging automatically: the qulice check is failing and the branch is behind master. Please rebase and clear qulice before merging.

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[yegor256]

Holding off on merging — the qulice check is failing on this PR. Requesting a look before it goes in.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud