Hi,

query is posted with curl to <host>:3030/ds

This is the error message:

SELECT DISTINCT ?s ?p ?o WHERE {
  GRAPH <http://www.lingsoft.fi/resource-meta/> {
    { ?s dcterms:isFormatOf <https://resource.lingsoft.fi/9d00a730-a1ca-4628-8ff7-1fbafca2bfaf> }
    UNION
    { <https://resource.lingsoft.fi/9d00a730-a1ca-4628-8ff7-1fbafca2bfaf> dcterms:hasFormat ?s }
    UNION
    { VALUES ?s { <https://resource.lingsoft.fi/9d00a730-a1ca-4628-8ff7-1fbafca2bfaf> } . ?s dcterms:format ?f }
    ?s ?p ?o
}}    500        Error 500: Server Error


Fuseki - version 3.6.0 (Build date: 2017-12-13T21:13:34+0000)


config.ttl is the default one:


@prefix :        <#> .
@prefix fuseki:  <http://jena.apache.org/fuseki#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ja:      <http://jena.hpl.hp.com/2005/11/Assembler#> .

[] rdf:type fuseki:Server ;



Error seems to be random, so identical queries are successfull before this error.



On 24.1.2018 17:40, ajs6f wrote:
Please show your code, including Fuseki config. It's hard to diagnose what is 
going wrong when we don't know what is supposed to happen.

ajs6f

On Jan 24, 2018, at 10:26 AM, Mikael Pesonen <mikael.peso...@lingsoft.fi> wrote:


Hi,

I have a test script running 10 concurrent CRUD operations in a loop. After few 
operations I get HTTP error 500 and these are in fuseki server output. Am I 
doing something wrong here?

[2018-01-24 17:16:53] BindingTDB ERROR get1(?o)
org.apache.jena.tdb.base.file.FileException: 
ObjectFileStorage.read[nodes](491421708)[filesize=495059272][file.size()=495059272]:
 Failed to read the length : got 0 bytes
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileStorage.read(ObjectFileStorage.java:341)
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileWrapper.read(ObjectFileWrapper.java:57)
     at org.apache.jena.tdb.lib.NodeLib.fetchDecode(NodeLib.java:78)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.readNodeFromTable(NodeTableNative.java:186)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative._retrieveNodeByNodeId(NodeTableNative.java:111)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.getNodeForNodeId(NodeTableNative.java:70)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache._retrieveNodeByNodeId(NodeTableCache.java:128)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache.getNodeForNodeId(NodeTableCache.java:82)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableWrapper.getNodeForNodeId(NodeTableWrapper.java:50)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableInline.getNodeForNodeId(NodeTableInline.java:67)
     at org.apache.jena.tdb.solver.BindingTDB.get1(BindingTDB.java:122)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.get(BindingBase.java:121)
     at 
org.apache.jena.sparql.engine.binding.BindingFactory.materialize(BindingFactory.java:60)
     at 
org.apache.jena.tdb.solver.QueryEngineTDB$QueryIteratorMaterializeBinding.moveToNextBinding(QueryEngineTDB.java:131)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:156)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.moveToNextBinding(QueryIteratorWrapper.java:42)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:156)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:131)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:40)
     at org.apache.jena.atlas.iterator.Iter$2.next(Iter.java:270)
     at 
org.apache.jena.ext.com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:52)
     at 
org.apache.jena.ext.com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:50)
     at java.util.Iterator.forEachRemaining(Iterator.java:115)
     at 
org.apache.jena.sparql.engine.QueryExecutionBase.execConstructDataset(QueryExecutionBase.java:243)
     at 
org.apache.jena.sparql.engine.QueryExecutionBase.execConstructDataset(QueryExecutionBase.java:236)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeQuery(SPARQL_Query.java:331)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.execute(SPARQL_Query.java:270)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeBody(SPARQL_Query.java:239)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.perform(SPARQL_Query.java:219)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.executeLifecycle(ActionSPARQL.java:132)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeRequest(SPARQL_UberServlet.java:356)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeAction(SPARQL_UberServlet.java:220)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.execCommonWorker(ActionSPARQL.java:83)
     at org.apache.jena.fuseki.servlets.ActionBase.doCommon(ActionBase.java:82)
     at 
org.apache.jena.fuseki.servlets.FusekiFilter.doFilter(FusekiFilter.java:73)
     at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
     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:1637)
     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$CachedChain.doFilter(ServletHandler.java:1629)
     at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
     at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
     at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
     at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
     at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
     at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:455)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at org.eclipse.jetty.server.Server.handle(Server.java:561)
     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
     at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
     at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
     at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
     at java.lang.Thread.run(Thread.java:745)
[2018-01-24 17:16:53] Fuseki     INFO  [644] 204 No Content (2 ms)
[2018-01-24 17:16:53] BindingHashMap WARN  Binding.add: null value - ignored







[2018-01-24 17:16:57] BindingTDB ERROR get1(?p)
org.apache.jena.tdb.base.file.FileException: In the middle of an alloc-write
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileStorage.read(ObjectFileStorage.java:311)
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileWrapper.read(ObjectFileWrapper.java:57)
     at org.apache.jena.tdb.lib.NodeLib.fetchDecode(NodeLib.java:78)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.readNodeFromTable(NodeTableNative.java:186)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative._retrieveNodeByNodeId(NodeTableNative.java:111)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.getNodeForNodeId(NodeTableNative.java:70)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache._retrieveNodeByNodeId(NodeTableCache.java:128)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache.getNodeForNodeId(NodeTableCache.java:82)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableWrapper.getNodeForNodeId(NodeTableWrapper.java:50)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableInline.getNodeForNodeId(NodeTableInline.java:67)
     at org.apache.jena.tdb.solver.BindingTDB.get1(BindingTDB.java:122)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.get(BindingBase.java:121)
     at 
org.apache.jena.sparql.engine.binding.BindingFactory.materialize(BindingFactory.java:60)
     at 
org.apache.jena.tdb.solver.QueryEngineTDB$QueryIteratorMaterializeBinding.moveToNextBinding(QueryEngineTDB.java:131)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:156)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.moveToNextBinding(QueryIteratorWrapper.java:42)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:156)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:131)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:40)
     at org.apache.jena.atlas.iterator.Iter$2.next(Iter.java:270)
     at 
org.apache.jena.ext.com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:52)
     at 
org.apache.jena.ext.com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:50)
     at java.util.Iterator.forEachRemaining(Iterator.java:115)
     at 
org.apache.jena.sparql.engine.QueryExecutionBase.execConstructDataset(QueryExecutionBase.java:243)
     at 
org.apache.jena.sparql.engine.QueryExecutionBase.execConstructDataset(QueryExecutionBase.java:236)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeQuery(SPARQL_Query.java:331)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.execute(SPARQL_Query.java:270)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeBody(SPARQL_Query.java:239)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.perform(SPARQL_Query.java:219)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.executeLifecycle(ActionSPARQL.java:132)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeRequest(SPARQL_UberServlet.java:356)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeAction(SPARQL_UberServlet.java:220)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.execCommonWorker(ActionSPARQL.java:83)
     at org.apache.jena.fuseki.servlets.ActionBase.doCommon(ActionBase.java:82)
     at 
org.apache.jena.fuseki.servlets.FusekiFilter.doFilter(FusekiFilter.java:73)
     at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
     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:1637)
     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$CachedChain.doFilter(ServletHandler.java:1629)
     at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
     at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
     at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
     at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
     at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
     at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:455)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at org.eclipse.jetty.server.Server.handle(Server.java:561)
     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
     at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
     at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
     at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
     at java.lang.Thread.run(Thread.java:745)
[2018-01-24 17:16:57] Fuseki     INFO  [1027] 204 No Content (13 ms)
[2018-01-24 17:16:57] BindingHashMap WARN  Binding.add: null value - ignored






[2018-01-24 17:17:02] BindingTDB ERROR get1(?s)
org.apache.jena.tdb.base.file.FileException: In the middle of an alloc-write
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileStorage.read(ObjectFileStorage.java:311)
     at 
org.apache.jena.tdb.base.objectfile.ObjectFileWrapper.read(ObjectFileWrapper.java:57)
     at org.apache.jena.tdb.lib.NodeLib.fetchDecode(NodeLib.java:78)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.readNodeFromTable(NodeTableNative.java:186)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative._retrieveNodeByNodeId(NodeTableNative.java:111)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableNative.getNodeForNodeId(NodeTableNative.java:70)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache._retrieveNodeByNodeId(NodeTableCache.java:128)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableCache.getNodeForNodeId(NodeTableCache.java:82)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableWrapper.getNodeForNodeId(NodeTableWrapper.java:50)
     at 
org.apache.jena.tdb.store.nodetable.NodeTableInline.getNodeForNodeId(NodeTableInline.java:67)
     at org.apache.jena.tdb.solver.BindingTDB.get1(BindingTDB.java:122)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.get(BindingBase.java:121)
     at 
org.apache.jena.sparql.engine.binding.BindingProjectBase.get1(BindingProjectBase.java:52)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.get(BindingBase.java:121)
     at 
org.apache.jena.sparql.engine.binding.BindingProjectBase.get1(BindingProjectBase.java:52)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.get(BindingBase.java:121)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.hashCode(BindingBase.java:201)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.hashCode(BindingBase.java:183)
     at java.util.HashMap.hash(HashMap.java:338)
     at java.util.HashMap.containsKey(HashMap.java:595)
     at java.util.HashSet.contains(HashSet.java:203)
     at 
org.apache.jena.sparql.engine.iterator.QueryIterDistinct.getInputNextUnseen(QueryIterDistinct.java:106)
     at 
org.apache.jena.sparql.engine.iterator.QueryIterDistinct.hasNextBinding(QueryIterDistinct.java:70)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:74)
     at 
org.apache.jena.sparql.engine.ResultSetCheckCondition.hasNext(ResultSetCheckCondition.java:55)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeQuery(SPARQL_Query.java:320)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.execute(SPARQL_Query.java:270)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeBody(SPARQL_Query.java:239)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.perform(SPARQL_Query.java:219)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.executeLifecycle(ActionSPARQL.java:132)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeRequest(SPARQL_UberServlet.java:356)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeAction(SPARQL_UberServlet.java:220)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.execCommonWorker(ActionSPARQL.java:83)
     at org.apache.jena.fuseki.servlets.ActionBase.doCommon(ActionBase.java:82)
     at 
org.apache.jena.fuseki.servlets.FusekiFilter.doFilter(FusekiFilter.java:73)
     at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
     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:1637)
     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$CachedChain.doFilter(ServletHandler.java:1629)
     at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
     at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
     at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
     at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
     at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
     at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:455)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at org.eclipse.jetty.server.Server.handle(Server.java:561)
     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
     at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
     at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
     at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
     at java.lang.Thread.run(Thread.java:745)
[2018-01-24 17:17:02] Fuseki     WARN  [1758] RC = 500 : null
java.lang.NullPointerException
     at 
org.apache.jena.sparql.engine.binding.BindingBase.hashCode(BindingBase.java:203)
     at 
org.apache.jena.sparql.engine.binding.BindingBase.hashCode(BindingBase.java:183)
     at java.util.HashMap.hash(HashMap.java:338)
     at java.util.HashMap.containsKey(HashMap.java:595)
     at java.util.HashSet.contains(HashSet.java:203)
     at 
org.apache.jena.sparql.engine.iterator.QueryIterDistinct.getInputNextUnseen(QueryIterDistinct.java:106)
     at 
org.apache.jena.sparql.engine.iterator.QueryIterDistinct.hasNextBinding(QueryIterDistinct.java:70)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:39)
     at 
org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
     at 
org.apache.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:74)
     at 
org.apache.jena.sparql.engine.ResultSetCheckCondition.hasNext(ResultSetCheckCondition.java:55)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeQuery(SPARQL_Query.java:320)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.execute(SPARQL_Query.java:270)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.executeBody(SPARQL_Query.java:239)
     at 
org.apache.jena.fuseki.servlets.SPARQL_Query.perform(SPARQL_Query.java:219)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.executeLifecycle(ActionSPARQL.java:132)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeRequest(SPARQL_UberServlet.java:356)
     at 
org.apache.jena.fuseki.servlets.SPARQL_UberServlet.executeAction(SPARQL_UberServlet.java:220)
     at 
org.apache.jena.fuseki.servlets.ActionSPARQL.execCommonWorker(ActionSPARQL.java:83)
     at org.apache.jena.fuseki.servlets.ActionBase.doCommon(ActionBase.java:82)
     at 
org.apache.jena.fuseki.servlets.FusekiFilter.doFilter(FusekiFilter.java:73)
     at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
     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:1637)
     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$CachedChain.doFilter(ServletHandler.java:1629)
     at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
     at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
     at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
     at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
     at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
     at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
     at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
     at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:455)
     at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
     at org.eclipse.jetty.server.Server.handle(Server.java:561)
     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
     at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
     at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
     at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
     at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
     at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
     at java.lang.Thread.run(Thread.java:745)
[2018-01-24 17:17:02] Fuseki     INFO  [1759] 204 No Content (11 ms)
[2018-01-24 17:17:02] Fuseki     INFO  [1758] 500 Server Error (11 ms)

--
Lingsoft - 30 years of Leading Language Management

www.lingsoft.fi

Speech Applications - Language Management - Translation - Reader's and Writer's 
Tools - Text Tools - E-books and M-books

Mikael Pesonen
System Engineer

e-mail: mikael.peso...@lingsoft.fi
Tel. +358 2 279 3300

Time zone: GMT+2

Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND

Turku Office
Kauppiaskatu 5 A
FI-20100 Turku
FINLAND


--
Lingsoft - 30 years of Leading Language Management

www.lingsoft.fi

Speech Applications - Language Management - Translation - Reader's and Writer's 
Tools - Text Tools - E-books and M-books

Mikael Pesonen
System Engineer

e-mail: mikael.peso...@lingsoft.fi
Tel. +358 2 279 3300

Time zone: GMT+2

Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND

Turku Office
Kauppiaskatu 5 A
FI-20100 Turku
FINLAND

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