Jan Rosecky created JENA-1979:
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Summary: SHACL validation: NullPointerException when shapes with
sh:alternativePath importing <http://datashapes.org/dash>
Key: JENA-1979
URL: https://issues.apache.org/jira/browse/JENA-1979
Project: Apache Jena
Issue Type: Bug
Components: SHACL
Affects Versions: Jena 3.16.0
Environment: Run
{{Graph shapesGraph =
ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM).read("shapes.ttl",
"TTL").getGraph();}}
{{ Graph dataGraph =
ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM).read("data.ttl",
"TTL").getGraph();}}
{{ validator = ShaclValidator.get();}}
{{ return validator.validate(shapesGraph, dataGraph);}}
Reporter: Jan Rosecky
Attachments: data.ttl, shapes.ttl
The exception happens when a property shape with sh:alternativePath is
evaluated inside ConstraintComponentSPARQL. I'm not sure why however it only
happens when dash/tosh shapes are imported by a shape.
The exception seems to happen on line 239 of SparqlValidation.java:
{{RDFNode z = ModelUtils.convertGraphNodeToRDFNode(ShaclPaths.pathNode(path),
model);}}
where pathNode() returns null - only supporting P_Link, not P_Alt and
convertGraphNodeToRDFNode() then runs unchecked node.isVariable().
Stack trace:
{{parameterMapToPreBinding:239, SparqlValidation
(org.apache.jena.shacl.engine.constraint)}}
{{validateMap:122, SparqlValidation (org.apache.jena.shacl.engine.constraint)}}
{{validate:87, SparqlValidation (org.apache.jena.shacl.engine.constraint)}}
{{lambda$validatePropertyShape$0:69, ConstraintComponentSPARQL
(org.apache.jena.shacl.engine.constraint)}}
{{accept:-1, 1035363280
(org.apache.jena.shacl.engine.constraint.ConstraintComponentSPARQL$$Lambda$125)}}
{{forEach:75, Iterable (java.lang)}}
{{validatePropertyShape:68, ConstraintComponentSPARQL
(org.apache.jena.shacl.engine.constraint)}}
{{evalConstraint:264, ValidationProc (org.apache.jena.shacl.validation)}}
{{validationPropertyShape:248, ValidationProc
(org.apache.jena.shacl.validation)}}
{{validationPropertyShapes:228, ValidationProc
(org.apache.jena.shacl.validation)}}
{{validateShape:219, ValidationProc (org.apache.jena.shacl.validation)}}
{{simpleValidationInternal:178, ValidationProc
(org.apache.jena.shacl.validation)}}
{{simpleValidation:122, ValidationProc (org.apache.jena.shacl.validation)}}
{{simpleValidation:109, ValidationProc (org.apache.jena.shacl.validation)}}
{{simpleValidation:101, ValidationProc (org.apache.jena.shacl.validation)}}
{{validate:79, ShaclSimpleValidator (org.apache.jena.shacl.validation)}}
{{validate:91, ShaclSimpleValidator (org.apache.jena.shacl.validation)}}
{{validate:23, mytest (com.msd.gin.mrlitdi.test)}}
{{run:17, mytest (com.msd.gin.mrlitdi.test)}}
{{invoke0:-1, NativeMethodAccessorImpl (sun.reflect)}}
{{invoke:62, NativeMethodAccessorImpl (sun.reflect)}}
{{invoke:43, DelegatingMethodAccessorImpl (sun.reflect)}}
{{invoke:498, Method (java.lang.reflect)}}
{{runReflectiveCall:50, FrameworkMethod$1 (org.junit.runners.model)}}
{{run:12, ReflectiveCallable (org.junit.internal.runners.model)}}
{{invokeExplosively:47, FrameworkMethod (org.junit.runners.model)}}
{{evaluate:17, InvokeMethod (org.junit.internal.runners.statements)}}
{{runLeaf:325, ParentRunner (org.junit.runners)}}
{{runChild:78, BlockJUnit4ClassRunner (org.junit.runners)}}
{{runChild:57, BlockJUnit4ClassRunner (org.junit.runners)}}
{{run:290, ParentRunner$3 (org.junit.runners)}}
{{schedule:71, ParentRunner$1 (org.junit.runners)}}
{{runChildren:288, ParentRunner (org.junit.runners)}}
{{access$000:58, ParentRunner (org.junit.runners)}}
{{evaluate:268, ParentRunner$2 (org.junit.runners)}}
{{run:363, ParentRunner (org.junit.runners)}}
{{run:137, JUnitCore (org.junit.runner)}}
{{startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)}}
{{startRunnerWithArgs:33, IdeaTestRunner$Repeater (com.intellij.rt.junit)}}
{{prepareStreamsAndStart:220, JUnitStarter (com.intellij.rt.junit)}}
{{main:53, JUnitStarter (com.intellij.rt.junit)}}
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