Re: java.lang.NullPointerException

Wed, 12 Jun 2019 07:03:10 -0700

Does it work if the fuseki:dataset connects to the dataseet without text index :my_dataset? 

On 12/06/2019 13:00, Mikael Pesonen wrote:



Tested with smaller data and it works even when query takes 60+ seconds 
(with 1 second timeout in config). I can provide you with the whole 
data, it's just collection of public RDF schemas.


On 12/06/2019 14:05, Andy Seaborne wrote:

The exception is the query timeout counter.

That worked for me when I tested the previous question.

The setup is complex.

Do you have complete, minimal example on a plain database? Or does 
that work always?


    Andy


On 11/06/2019 14:34, Mikael Pesonen wrote:


Hi,


following query causes exception every time it's executed. Exactly 
same query has worked before, but can't say which Jena version it was.


  [2019-06-11 13:02:51] Fuseki     WARN  [24] RC = 500 : null
java.lang.NullPointerException

         at 
org.apache.jena.fuseki.servlets.SPARQL_Query.execute(SPARQL_Query.java:301) 

         at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeBody(SPARQL_Query.java:250) 

         at 
org.apache.jena.fuseki.servlets.SPARQL_Query.perform(SPARQL_Query.java:230) 

         at 
org.apache.jena.fuseki.servlets.ActionService.executeLifecycle(ActionService.java:266) 

         at 
org.apache.jena.fuseki.servlets.ActionService.execCommonWorker(ActionService.java:155) 

         at 
org.apache.jena.fuseki.servlets.ActionBase.doCommon(ActionBase.java:74)
         at 
org.apache.jena.fuseki.servlets.FusekiFilter.doFilter(FusekiFilter.java:73) 

         at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) 

         at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) 

         at 
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) 

         at 
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) 

         at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) 

         at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) 

         at 
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) 

         at 
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) 

         at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) 

         at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) 

         at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) 

         at 
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) 

         at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) 

         at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) 

         at 
org.apache.jena.fuseki.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:285) 

         at 
org.apache.jena.fuseki.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:248) 

         at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) 

         at 
org.apache.jena.fuseki.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:285) 

         at 
org.apache.jena.fuseki.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:248) 

         at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) 

         at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) 

         at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) 

         at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) 

         at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) 

         at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) 

         at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) 

         at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) 

         at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) 

         at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) 

         at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:690) 

         at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) 


         at org.eclipse.jetty.server.Server.handle(Server.java:503)

         at 
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
         at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) 

         at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) 

         at 
org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
         at 
org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
         at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) 

         at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) 

         at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) 

         at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) 

         at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) 

         at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) 

         at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) 


         at java.lang.Thread.run(Thread.java:748)
[2019-06-11 13:02:51] Fuseki     INFO  [24] 500 Server Error (1.070 s)



SELECT DISTINCT ?p ?label ?range   ?property_type
(GROUP_CONCAT(DISTINCT ?comment_g; separator=" ") as ?comment)
WHERE  {
     GRAPH <http://resource.lingsoft.fi/rdf/schema_meta>
     {
         VALUES ?domain_property { rdfs:domain schema:domainIncludes }
         VALUES ?general_domain { rdfs:Resource owl:Thing schema:Thing }

         VALUES ?property_type { rdf:Property owl:DatatypeProperty 
owl:ObjectProperty owl:AnnotationProperty }
         VALUES ?class { <http://purl.org/dc/terms/Agent> 
<http://xmlns.com/foaf/0.1/Agent> }

         ?class rdfs:subClassOf* ?top_class .

         { ?p ?domain_property ?top_class } UNION { ?p 
rdfs:subPropertyOf* ?p2 . ?p2 ?domain_property ?top_class }


         UNION { ?p ?domain_property ?general_domain }


         UNION { ?p a ?property_type FILTER ( NOT EXISTS { ?p 
rdfs:domain ?d } && NOT EXISTS { ?p schema:domainIncludes ?d } && NOT 
EXISTS { ?p rdfs:subPropertyOf ?p2 . ?p2 rdfs:domain ?d FILTER (?d != 
rdfs:Resource && ?d != owl:Thing) } ) }
         OPTIONAL { ?p rdfs:subPropertyOf* ?p2 . { ?p2 
schema:rangeIncludes ?range } UNION { ?p2 rdfs:range ?range } }
         OPTIONAL { ?p rdfs:label ?label 
FILTER(LANGMATCHES(LANG(?label), "en")) }

         OPTIONAL { ?p rdfs:label ?label FILTER(LANG(?label) = "") }
         OPTIONAL { ?p rdfs:label ?label }

         OPTIONAL { ?p rdfs:comment ?comment_g 
FILTER(LANGMATCHES(LANG(?comment_g), "en")) }
         OPTIONAL { ?p rdfs:comment ?comment_g 
FILTER(LANG(?comment_g) = "") }

         OPTIONAL { ?p rdfs:comment ?comment_g }

         OPTIONAL { ?p skos:definition ?comment_g 
FILTER(LANGMATCHES(LANG(?comment_g), "en")) }
         OPTIONAL { ?p skos:definition ?comment_g 
FILTER(LANG(?comment_g) = "") }

         OPTIONAL { ?p skos:definition ?comment_g }


         FILTER ( NOT EXISTS { ?p schema:supersededBy ?sp } && NOT 
EXISTS { ?p 
<http://www.w3.org/2003/06/sw-vocab-status/ns#term_status> "archaic" 
} && NOT EXISTS { ?p owl:deprecated "true"^^xsd:boolean } )

  }  }
  GROUP BY ?p ?label ?range ?property_type
  ORDER BY ASC(?label)



Jena Fuseki version 3.11


  /usr/bin/java 
-Dlog4j.configuration=file:/home/text/tools/apache-jena-fuseki-3.11.0/log4j.properties 
-Xmx5600M -jar fuseki-server.jar --update --port 3030 
--config=config.ttl



config.ttl:

@prefix :<http://localhost/jena_example/#>  .
@prefix rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#>  .
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#>  .
@prefix ja:<http://jena.hpl.hp.com/2005/11/Assembler#>  .
@prefix text:<http://jena.apache.org/text#>  .
@prefix skos:<http://www.w3.org/2004/02/skos/core#>
@prefix fuseki:<http://jena.apache.org/fuseki#>  .
@prefix lsrm:<https://resource.lingsoft.fi/ns/resource_meta#> .

[] rdf:type fuseki:Server ;
    ja:context [ ja:cxtName "arq:queryTimeout" ;  ja:cxtValue "1000" ] ;
    .

## Example of a TDB dataset and text index
## Initialize TDB
[] ja:loadClass "org.apache.jena.tdb.TDB" .
tdb:DatasetTDB  rdfs:subClassOf  ja:RDFDataset .
tdb:GraphTDB    rdfs:subClassOf  ja:Model .

## Initialize text query
[] ja:loadClass       "org.apache.jena.query.text.TextQuery" .
# A TextDataset is a regular dataset with a text index.
text:TextDataset      rdfs:subClassOf   ja:RDFDataset .
# Lucene index
text:TextIndexLucene  rdfs:subClassOf   text:TextIndex .


## ---------------------------------------------------------------


:text_dataset rdf:type     text:TextDataset ;
      text:dataset   :my_dataset ;
      text:index     <#indexLucene> ;
      .

# A TDB dataset used for RDF storage
:my_dataset rdf:type      tdb:DatasetTDB ;
      tdb:location "/home/text/tools/jena_data/" ;

      ja:context [ ja:cxtName "arq:queryTimeout" ; ja:cxtValue "1000" 
] ;


#    tdb:unionDefaultGraph true ; # Optional
      .

# Text index description
<#indexLucene> a text:TextIndexLucene ;
      text:directory <file:/home/text/tools/jena_text_index/> ;
      text:entityMap <#entMap> ;
      text:storeValues true ;
      text:analyzer [ a text:StandardAnalyzer ] ;
# these mess up language search. why?
#     text:queryAnalyzer [ a text:KeywordAnalyzer ] ;
#     text:queryParser text:AnalyzingQueryParser ;
      text:multilingualSupport true ;
   .

<#entMap> a text:EntityMap ;
      text:defaultField     "prefLabel" ;
      text:entityField      "uri" ;
      text:uidField         "uid" ;
      text:langField        "lang" ;
      text:graphField       "graph" ;
      text:map (
           [ text:field "prefLabel" ; text:predicate skos:prefLabel ]
           [ text:field "altLabel"  ; text:predicate skos:altLabel ]
           [ text:field "content"  ; text:predicate lsrm:content ]
           ) .

<#service> rdf:type fuseki:Service ;
      fuseki:name                     "/ds" ;   # http://host:port/ds-ro

      fuseki:serviceQuery             "query" ;    # SPARQL query 
service
      fuseki:serviceQuery             "sparql" ;   # SPARQL query 
service
      fuseki:serviceUpdate            "update" ;   # SPARQL update 
service
      fuseki:serviceUpload            "upload" ;   # Non-SPARQL 
upload service
      fuseki:serviceReadWriteGraphStore "data" ;     # SPARQL Graph 
store protocol (read and write)

      fuseki:dataset           :text_dataset ;
      .

























					Reply via email to