[Pellet-users] SPARQL query over Web Services

[Miguelanez, Emilio]

Hi,

I am implementing a web application which execute queries over a servlet.

The class in a standalone code works ok, however through the servlet,
I get the following error for a simple query SELECT ?x ?y ?z WHERE {?x
?y ?z}

Exception in thread "Thread-34" java.lang.Error: no implementation of
regexp was found.
at
com.sun.msv.datatype.xsd.regex.RegExpFactory.createFactory(RegExpFactory.java:28\
)
at
com.sun.msv.datatype.xsd.AnyURIType.createRegExp(AnyURIType.java:175)
at
com.sun.msv.datatype.xsd.AnyURIType.<clinit>(AnyURIType.java:128)
at
com.sun.msv.datatype.xsd.DatatypeFactory.getTypeByName(DatatypeFactory.java:195)
at
org.mindswap.pellet.datatypes.XSDAnyURI.<clinit>(XSDAnyURI.java:28)
at
org.mindswap.pellet.datatypes.XSDSimpleType.<init>(XSDSimpleType.java:19)
at
org.mindswap.pellet.datatypes.XSDSimpleType.<clinit>(XSDSimpleType.java:13)
at
org.mindswap.pellet.datatypes.RDFSLiteral.<init>(RDFSLiteral.java:17)
at
org.mindswap.pellet.datatypes.RDFSLiteral.<clinit>(RDFSLiteral.java:14)
at
org.mindswap.pellet.datatypes.DatatypeReasoner.<init>(DatatypeReasoner.java:84)
at org.mindswap.pellet.ABox.<init>(ABox.java:189)
at org.mindswap.pellet.KnowledgeBase.clear(KnowledgeBase.java:191)
at
org.mindswap.pellet.KnowledgeBase.<init>(KnowledgeBase.java:140)
at
org.mindswap.pellet.jena.OWLReasoner.<init>(OWLReasoner.java:89)
at
org.mindswap.pellet.jena.PelletInfGraph.<init>(PelletInfGraph.java:158)
at
org.mindswap.pellet.jena.PelletReasoner.bind(PelletReasoner.java:84)
at
com.hp.hpl.jena.rdf.model.ModelFactory.createInfModel(ModelFactory.java:294)
at net.integrail.implement.QueryThread.run(QueryThread.java:84)

I do not have any idea the root of this problem. Any help is appreciated.

Cheers,
Emilio
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