Just prepend a letter? Sent from my iPhone
> On 26.09.2024, at 15:37, Luke VanderHart <l...@vanderhart.net> wrote: > > I'm trying to use Jena to write RDF/XML. The graph I'm writing contains a > triple with an IRI node used in predicate position: > "urn:uuid:29ec95c1-034b-4d8a-ba48-c50f0f9dd269". > > Jena throws an exception when trying to write this graph to RDF/XML. Upon > debugging, the cause is that ModelCom.listNameSpaces is trying to parse out > the namespace of all the predicates in the graph using > org.apache.jena.util.SplitIRI.splitXML method. > > This method is splitting the URI at index 11, yielding an invalid URI > `urn:uuid:29` which later fails validation and throws an exception. This is > because the UUID starts with numeric characters which are not valid initial > characters for a NCName. > > I feel like I'm missing something. Is there some aspect of the > specification that normally prohibits using UUID URNs in predicate > position? Or am I doing something else wrong? Or is this an actual edge > case bug that I should file a bug report for? > > Any insight would be much appreciated. Thank you! > > - Luke
