Holger Knublauch created JENA-1129:
--------------------------------------
Summary: NullPointerException in Query Transformation
Key: JENA-1129
URL: https://issues.apache.org/jira/browse/JENA-1129
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 3.1.0
Reporter: Holger Knublauch
Query query = QueryFactory.create(
" ASK { "
+ " FILTER NOT EXISTS {"
+ " BIND (?width * ?height AS ?value)"
+ " }"
+ " }");
QueryTransformOps.transform(query, new HashMap<Var,Node>());
->
java.lang.NullPointerException
at org.apache.jena.sparql.expr.ExprVar.apply(ExprVar.java:92)
at
org.apache.jena.sparql.expr.ExprTransformer$ApplyExprTransformVisitor.visit(ExprTransformer.java:176)
at org.apache.jena.sparql.expr.ExprVar.visit(ExprVar.java:90)
at
org.apache.jena.sparql.expr.ExprWalker$Walker.visit(ExprWalker.java:97)
at
org.apache.jena.sparql.expr.ExprWalker$WalkerBottomUp.visit(ExprWalker.java:113)
at org.apache.jena.sparql.expr.ExprVar.visit(ExprVar.java:90)
at
org.apache.jena.sparql.expr.ExprWalker$Walker.visitExprFunction(ExprWalker.java:68)
at
org.apache.jena.sparql.expr.ExprVisitorFunction.visit(ExprVisitorFunction.java:29)
at
org.apache.jena.sparql.expr.ExprFunction2.visit(ExprFunction2.java:109)
at org.apache.jena.sparql.expr.ExprWalker.walk(ExprWalker.java:36)
at
org.apache.jena.sparql.expr.ExprTransformer.transformation(ExprTransformer.java:62)
at
org.apache.jena.sparql.expr.ExprTransformer.transformation(ExprTransformer.java:45)
at
org.apache.jena.sparql.expr.ExprTransformer.transform(ExprTransformer.java:36)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer$ApplyTransformVisitor.visit(ElementTransformer.java:159)
at
org.apache.jena.sparql.syntax.ElementWalker$Walker.visit(ElementWalker.java:100)
at org.apache.jena.sparql.syntax.ElementBind.visit(ElementBind.java:68)
at
org.apache.jena.sparql.syntax.ElementWalker$Walker.visit(ElementWalker.java:127)
at
org.apache.jena.sparql.syntax.ElementGroup.visit(ElementGroup.java:120)
at
org.apache.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:39)
at
org.apache.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:33)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.applyTransformation(ElementTransformer.java:89)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transformation(ElementTransformer.java:83)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transformation(ElementTransformer.java:74)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transform(ElementTransformer.java:66)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transform(ElementTransformer.java:56)
at
org.apache.jena.sparql.syntax.syntaxtransform.ExprTransformNodeElement.transform(ExprTransformNodeElement.java:67)
at
org.apache.jena.sparql.expr.ExprFunctionOp.apply(ExprFunctionOp.java:98)
at
org.apache.jena.sparql.expr.ExprTransformer$ApplyExprTransformVisitor.visit(ExprTransformer.java:161)
at
org.apache.jena.sparql.expr.ExprFunctionOp.visit(ExprFunctionOp.java:97)
at
org.apache.jena.sparql.expr.ExprWalker$Walker.visit(ExprWalker.java:92)
at
org.apache.jena.sparql.expr.ExprWalker$WalkerBottomUp.visit(ExprWalker.java:113)
at
org.apache.jena.sparql.expr.ExprFunctionOp.visit(ExprFunctionOp.java:97)
at org.apache.jena.sparql.expr.ExprWalker.walk(ExprWalker.java:36)
at
org.apache.jena.sparql.expr.ExprTransformer.transformation(ExprTransformer.java:62)
at
org.apache.jena.sparql.expr.ExprTransformer.transformation(ExprTransformer.java:45)
at
org.apache.jena.sparql.expr.ExprTransformer.transform(ExprTransformer.java:36)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer$ApplyTransformVisitor.transformExpr(ElementTransformer.java:286)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer$ApplyTransformVisitor.visit(ElementTransformer.java:139)
at
org.apache.jena.sparql.syntax.ElementWalker$Walker.visit(ElementWalker.java:84)
at
org.apache.jena.sparql.syntax.ElementFilter.visit(ElementFilter.java:35)
at
org.apache.jena.sparql.syntax.ElementWalker$Walker.visit(ElementWalker.java:127)
at
org.apache.jena.sparql.syntax.ElementGroup.visit(ElementGroup.java:120)
at
org.apache.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:39)
at
org.apache.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:33)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.applyTransformation(ElementTransformer.java:89)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transformation(ElementTransformer.java:83)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transformation(ElementTransformer.java:74)
at
org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer.transform(ElementTransformer.java:61)
at
org.apache.jena.sparql.syntax.syntaxtransform.QueryTransformOps.transform(QueryTransformOps.java:57)
at
org.apache.jena.sparql.syntax.syntaxtransform.QueryTransformOps.transform(QueryTransformOps.java:46)
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