NullPointerException at com.hp.hpl.jena.sdb.compiler.SDB_QC.exec
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Key: JENA-27
URL: https://issues.apache.org/jira/browse/JENA-27
Project: Jena
Issue Type: Bug
Components: SDB
Environment: java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03, mixed mode)
Reporter: Gavin Carothers
Priority: Critical
Unable to execute SPARQL queries with SDB. OpSQL's bridge is null in at least
some cases. Patch works, but seems odd as the code seems to indicate that a op3
(3rd pass?) shouldn't need a bridge any more?
java.lang.NullPointerException
at com.hp.hpl.jena.sdb.compiler.SDB_QC.exec(SDB_QC.java:65)
at com.hp.hpl.jena.sdb.compiler.OpSQL.exec(OpSQL.java:53)
at
com.hp.hpl.jena.sdb.engine.QueryEngineSDB.eval(QueryEngineSDB.java:117)
at
com.hp.hpl.jena.sparql.engine.QueryEngineBase.evaluate(QueryEngineBase.java:138)
at
com.hp.hpl.jena.sparql.engine.QueryEngineBase.createPlan(QueryEngineBase.java:109)
at
com.hp.hpl.jena.sparql.engine.QueryEngineBase.getPlan(QueryEngineBase.java:97)
at
com.hp.hpl.jena.sdb.engine.QueryEngineSDB$QueryEngineFactorySDB.create(QueryEngineSDB.java:142)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.getPlan(QueryExecutionBase.java:266)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.startQueryIterator(QueryExecutionBase.java:243)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execResultSet(QueryExecutionBase.java:248)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execSelect(QueryExecutionBase.java:94)
at com.oreilly.rdf.tenuki.SDBBugTest.testForSDBBug(SDBBugTest.java:47)
Test Case:
https://github.com/norcalrdf/Tenuki/blob/0.4-bugfixes/src/test/java/com/oreilly/rdf/tenuki/SDBBugTest.java
Patch:
https://gist.github.com/675719
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