Error parsing linkedart context definition

[michielhildebrand]

Version

4.10

What happened?

We use Jena to parse RDF files, including jsonld. When loading the latest version of the linked art context definition in jsonld (https://linked.art/ns/v1/linked-art.json) Jena reports an error. According to the maintainers of the linked art context definition the jsonld is correct and is parsed by pyld, see linked-art/linked.art#235 (comment). The specific section of the jsonld document that triggers the error is.

"@context": {
   "@id": "crm:P177_assigned_property_of_type",
   "@type": "@vocab",
   "@context": {
       "part_of": {
           "@id": "crm:P46i_forms_part_of"
       }
   }
}

Relevant output and stacktrace

I reproduced the error using the ld-cli

cat linkart.json | ./ld-cli expand --ordered --pretty
JsonLdError[code=The local context defined within a term definition is invalid [code=INVALID_SCOPED_CONTEXT]., message=The local context defined within a term definition is invalid [code=INVALID_SCOPED_CONTEXT].]
	at com.apicatalog.jsonld.context.TermDefinitionBuilder.create(TermDefinitionBuilder.java:540)
	at com.apicatalog.jsonld.context.ActiveContextBuilder.create(ActiveContextBuilder.java:457)
	at com.apicatalog.jsonld.expansion.ObjectExpansion.initLocalContext(ObjectExpansion.java:200)
	at com.apicatalog.jsonld.expansion.ObjectExpansion.expand(ObjectExpansion.java:102)
	at com.apicatalog.jsonld.expansion.Expansion.compute(Expansion.java:119)
	at com.apicatalog.jsonld.processor.ExpansionProcessor.expand(ExpansionProcessor.java:124)
	at com.apicatalog.jsonld.api.ExpansionApi.get(ExpansionApi.java:131)
	at com.apicatalog.cli.command.ExpandCmd.call(ExpandCmd.java:76)
	at com.apicatalog.cli.command.ExpandCmd.call(ExpandCmd.java:18)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
	at picocli.CommandLine.access$1300(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2314)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
	at picocli.CommandLine.execute(CommandLine.java:2078)
	at com.apicatalog.cli.App.main(App.java:82)
Caused by: JsonLdError[code=The local context defined within a term definition is invalid [code=INVALID_SCOPED_CONTEXT]., message=The local context defined within a term definition is invalid [code=INVALID_SCOPED_CONTEXT].]
	at com.apicatalog.jsonld.context.TermDefinitionBuilder.create(TermDefinitionBuilder.java:540)
	at com.apicatalog.jsonld.context.ActiveContextBuilder.create(ActiveContextBuilder.java:457)
	at com.apicatalog.jsonld.context.TermDefinitionBuilder.create(TermDefinitionBuilder.java:537)
	... 17 more
Caused by: JsonLdError[code=A keyword redefinition has been detected [code=KEYWORD_REDEFINITION]., message=A keyword [@id] redefinition has been detected.]
	at com.apicatalog.jsonld.context.TermDefinitionBuilder.create(TermDefinitionBuilder.java:165)
	at com.apicatalog.jsonld.context.ActiveContextBuilder.create(ActiveContextBuilder.java:457)
	at com.apicatalog.jsonld.context.TermDefinitionBuilder.create(TermDefinitionBuilder.java:537)
	... 19 more

### Are you interested in making a pull request?

None

[michielhildebrand]

As the bug already appears in titanium-json-ld I reported the bug there filip26/titanium-json-ld#348.

Should we close this one?

[afs]

Hi @michielhildebrand,

Thanks for checking Titanium JSON-LD.

There isn't any Jena code on that stack trace so it doesn't look like Jena setup of a call to Titanium is involved.
The stack trace is from com.apicatalog.cli.App.main which is not Jena code.

The de-facto reference impl online for JSON-LD is https://json-ld.org/playground/.