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https://issues.apache.org/jira/browse/SIS-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Desruisseaux updated SIS-125:
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Affects Version/s: 0.4
0.5
0.6
> ModifiableMetadata.nonNullCollection(...) should determine more accuratly if
> the metadata object is being marshalled
> --------------------------------------------------------------------------------------------------------------------
>
> Key: SIS-125
> URL: https://issues.apache.org/jira/browse/SIS-125
> Project: Spatial Information Systems
> Issue Type: Improvement
> Components: Metadata
> Affects Versions: 0.3, 0.4, 0.5, 0.6
> Reporter: Martin Desruisseaux
> Priority: Minor
>
> Despite its name, the {{ModifiableMetadata.nonNullCollection(...)}} method
> may return {{null}} in the special case of XML marshalling if and only if the
> marshalled element is optional. This is a hack for preventing JAXB to create
> empty nodes for empty properties. However in current implementation, the
> decision to return null or not is set by a thread-local flag, which apply
> {{ModifiableMetadata}} being marshalled in that particular thread. It does
> not work well when the user provides its own metadata implementation which
> create a Geotk metadata object on the fly.
> We need to make the {{ModifiableMetadata.canReturnNull()}} method more
> accurate in order to not only use a thread-local flag, but also check for the
> particular metadata instance being marshalled.
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