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https://issues.apache.org/jira/browse/JENA-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280616#comment-17280616
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Andy Seaborne commented on JENA-2039:
-------------------------------------

Hi Florian,

Thank you for the testing.

The next version is going to be 4.0.0 (java11) and soon the development builds 
will be 4.0.0 not 3.18.0. Details on the [dev@ 
list|https://lists.apache.org/thread.html/r3b0cb0bef9465f4f8134f079575cfe7bc4c2b9a52586acd4ab8920b1%40%3Cdev.jena.apache.org%3E].

There are changes around IRIs to abstract out the contract between Jena code 
and the IRI implementation. A future IRI implementation, which is more 
maintainable, will come along but for now,its wrapping the existing Jena IRI 
code.

This however is a straight bug and will be fixed.

Could you say some more about the "wm" URI scheme? And is it ever used as a 
base URI?



> URI parsing fails
> -----------------
>
>                 Key: JENA-2039
>                 URL: https://issues.apache.org/jira/browse/JENA-2039
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: RIOT
>            Reporter: Florian Kleedorfer
>            Priority: Critical
>
> Depending on 3.18.0-SNAPSHOT, some of my tests started to fail recently. We 
> are using URIs of the form 'wm:/abcde' - note the single slash. These URIs, 
> it seems, can no longer be parsed.
> Here is a minimal example: 
> {noformat}
> @prefix msg:   <https://w3id.org/won/message#> .
> <wm:/jq15ga3aacsxbvl9nngw> a msg:Message .
> {noformat}
> This is the exception I get: 
> {noformat}
> Exception in thread "main" org.apache.jena.riot.RiotException: [line: 3, col: 
> 1 ] Bad IRI: <wm:/jq15ga3aacsxbvl9nngw> : Not an RDF IRI: 
> wm:/jq15ga3aacsxbvl9nngw
>       at 
> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.error(ErrorHandlerFactory.java:146)
>       at 
> org.apache.jena.riot.system.ParserProfileStd.internalMakeIRI(ParserProfileStd.java:101)
>       at 
> org.apache.jena.riot.system.ParserProfileStd.resolveIRI(ParserProfileStd.java:81)
>       at 
> org.apache.jena.riot.system.ParserProfileStd.createURI(ParserProfileStd.java:162)
>       at 
> org.apache.jena.riot.system.ParserProfileStd.create(ParserProfileStd.java:234)
>       at 
> org.apache.jena.riot.lang.LangTurtleBase.tokenAsNode(LangTurtleBase.java:582)
>       at 
> org.apache.jena.riot.lang.LangTurtleBase.node(LangTurtleBase.java:414)
>       at 
> org.apache.jena.riot.lang.LangTriG.oneNamedGraphBlock2(LangTriG.java:115)
>       at 
> org.apache.jena.riot.lang.LangTriG.oneTopLevelElement(LangTriG.java:49)
>       at 
> org.apache.jena.riot.lang.LangTurtleBase.runParser(LangTurtleBase.java:79)
>       at org.apache.jena.riot.lang.LangBase.parse(LangBase.java:43)
>       at 
> org.apache.jena.riot.RDFParserRegistry$ReaderRIOTLang.read(RDFParserRegistry.java:185)
>       at org.apache.jena.riot.RDFParser.read(RDFParser.java:356)
>       at org.apache.jena.riot.RDFParser.parseNotUri(RDFParser.java:346)
>       at org.apache.jena.riot.RDFParser.parse(RDFParser.java:292)
>       at 
> org.apache.jena.riot.RDFParserBuilder.parse(RDFParserBuilder.java:539)
>       at 
> org.apache.jena.riot.RDFDataMgr.parseFromInputStream(RDFDataMgr.java:901)
>       at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:590)
>       at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:568)
>       at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:559)
> {noformat}



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