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https://issues.apache.org/jira/browse/MRESOLVER-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tamás Cservenák resolved MRESOLVER-242.
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Resolution: Fixed
Commited as 16b12f14eec8b6309a118c225f50f35292eb0a4f
> When no remote checksums provided by layout, transfer inevitably fails/warns
> ----------------------------------------------------------------------------
>
> Key: MRESOLVER-242
> URL: https://issues.apache.org/jira/browse/MRESOLVER-242
> Project: Maven Resolver
> Issue Type: Bug
> Reporter: Tamás Cservenák
> Assignee: Tamás Cservenák
> Priority: Major
> Fix For: 1.8.0
>
>
> On remote transfer, if layout does not provide remote checksums (as Javadoc
> states: it MAY return empty collection), remote transfer either WARNs or
> fails (if repository policy is WARN of FAIL respectively) always. This is
> wrong IMHO.
> OTOH, layout intentionally does not return remote checksums in some cases,
> like GPG signature is, if the default Maven2RepositoryLayoutEx is used.
> Hence, this causes that (sub)artifacts like checksums and signatures are NOT
> resolvable using resolver, due that above (they are deemed to always fail).
> Hence, a proposed solution is:
> * change of semantics: when layout does not provide remote checksums, skip
> checksum validation of remote checksums (as there is no such thing as
> "checksum of a checksum" or in many cases "checksum of a signature").
> * make resolver layout extensible re "artifacts with omitted checksums"
> instead to have baked in only one extension: {{.asc}}
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