Hello, After upgrading to fuseki v6 we are receiving the error for certain SPARQL queries:
org.apache.jena.query.QueryExecException: org.apache.jena.sparql.ARQInternalErrorException: Peek iterator is already empty Any hints maybe what could be the cause? Thanks, Gaspar On Thu, Feb 5, 2026 at 12:29 PM Andy Seaborne <[email protected]> wrote: > Andrew, > > Glad to see you've got it fixed. > > Looks like you were using the deprecated constant > XMLLiteralType.theXMLLiteralType > > Jena6 has been an opportunity to prune deprecations. There were a lot, > some going back a long time. > > Andy > > On 04/02/2026 23:25, Andrii Berezovskyi via users wrote: > > Thank you, Andy, > > > > On 4 Feb 2026, at 23:23, Andy Seaborne <[email protected]> wrote: > > > > It's there - there is a constant. The class is private and has been > since 2024-09 > > s/private/public/ > > > > > XMLLiteralType.rdfXMLLiteral > > > > better accessed as > > > > RDF.dtXMLLiteral > > > > Thank you, RDF.dtXMLLiteral worked perfectly! > > > > Is this a 5.6.0->6.0.0 upgrade? > > > > Yes. > > > > Is is some aspect of XMLLiteralType? > > > > Our object-graph mapper has special handling of XML literals, we only > need RDF.dtXMLLiteral to obtain its URI. > > > > Are you repackaging Jena in some way? > > > > Not at all. > > > > Best regards, > > Andrew > > > > > >
