Hi,
I am not sure whether this is a problem or not, known or not.
Will fill-in a Jira if needed.
And I could try to see if it does also happen with postgreSQL if needed.
I sometimes have "ERROR - error accessing RDF repository" messages in my
console, but the GUI does work properly.
For instance, I just had the following log when refreshing the list of context
from "core/admin/contexts.html", eventhough the context list does refresh
correctly in the user interface:
11:10:45.804 ERROR - error accessing RDF repository
org.openrdf.repository.RepositoryException: org.openrdf.sail.SailException:
database error while iterating over result set
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:38)
~[sesame-repository-sail-2.7.13.jar:na]
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:28)
~[sesame-repository-sail-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResultUtils$1.hasNext(ResultUtils.java:57)
~[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
com.google.common.collect.TransformedIterator.hasNext(TransformedIterator.java:43)
[guava-18.0.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLiteral(ResourceUtils.java:490)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getProperty(ResourceUtils.java:473)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1069)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1050)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1023)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl.getContextLabel(ContextServiceImpl.java:309)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl$Proxy$_$$_WeldClientProxy.getContextLabel(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService.listContexts(ContextWebService.java:87)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService$Proxy$_$$_WeldClientProxy.listContexts(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_72]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
~[na:1.7.0_72]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.7.0_72]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_72]
at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invokePropagateNotFound(SynchronousDispatcher.java:217)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:224)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.FilterDispatcher.doFilter(FilterDispatcher.java:62)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:185)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter.doFilter(ModuleResourceFilter.java:157)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:182)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.MarmottaServerNameFilter.doFilter(MarmottaServerNameFilter.java:104)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter.doFilter(TemplatingFilter.java:176)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter.doFilter(MarmottaAccessControlFilter.java:142)
[marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter.doFilter(MarmottaAuthenticationFilter.java:163)
[marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter.doFilter(MarmottaResourceFilter.java:133)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaPreStartupFilter.doFilter(MarmottaPreStartupFilter.java:106)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:208)
[cors-filter-2.2.1.jar:2.2.1]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:271)
[cors-filter-2.2.1.jar:2.2.1]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaOptionsFilter.doFilter(MarmottaOptionsFilter.java:81)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_72]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_72]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
Caused by: org.openrdf.sail.SailException: database error while iterating over
result set
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:308)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:301)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:74)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
~[sesame-util-2.7.13.jar:na]
at
org.openrdf.sail.helpers.SailBaseIteration.hasNext(SailBaseIteration.java:61)
~[sesame-sail-api-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 69 common frames omitted
Caused by: java.lang.NullPointerException: null
at
org.apache.marmotta.kiwi.persistence.KiWiConnection.constructTriplesFromDatabase(KiWiConnection.java:2014)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.fetchBatch(KiWiConnection.java:1717)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.hasNext(KiWiConnection.java:1699)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at info.aduna.iteration.DelayedIteration.hasNext(DelayedIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 76 common frames omitted
11:10:45.815 ERROR - error accessing RDF repository
org.openrdf.repository.RepositoryException: org.openrdf.sail.SailException:
database error while iterating over result set
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:38)
~[sesame-repository-sail-2.7.13.jar:na]
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:28)
~[sesame-repository-sail-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResultUtils$1.hasNext(ResultUtils.java:57)
~[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
com.google.common.collect.TransformedIterator.hasNext(TransformedIterator.java:43)
[guava-18.0.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLiteral(ResourceUtils.java:490)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getProperty(ResourceUtils.java:473)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1079)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1050)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1023)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl.getContextLabel(ContextServiceImpl.java:309)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl$Proxy$_$$_WeldClientProxy.getContextLabel(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService.listContexts(ContextWebService.java:87)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService$Proxy$_$$_WeldClientProxy.listContexts(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_72]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
~[na:1.7.0_72]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.7.0_72]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_72]
at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invokePropagateNotFound(SynchronousDispatcher.java:217)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:224)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.FilterDispatcher.doFilter(FilterDispatcher.java:62)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:185)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter.doFilter(ModuleResourceFilter.java:157)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:182)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.MarmottaServerNameFilter.doFilter(MarmottaServerNameFilter.java:104)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter.doFilter(TemplatingFilter.java:176)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter.doFilter(MarmottaAccessControlFilter.java:142)
[marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter.doFilter(MarmottaAuthenticationFilter.java:163)
[marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter.doFilter(MarmottaResourceFilter.java:133)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaPreStartupFilter.doFilter(MarmottaPreStartupFilter.java:106)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:208)
[cors-filter-2.2.1.jar:2.2.1]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:271)
[cors-filter-2.2.1.jar:2.2.1]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaOptionsFilter.doFilter(MarmottaOptionsFilter.java:81)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_72]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_72]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
Caused by: org.openrdf.sail.SailException: database error while iterating over
result set
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:308)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:301)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:74)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
~[sesame-util-2.7.13.jar:na]
at
org.openrdf.sail.helpers.SailBaseIteration.hasNext(SailBaseIteration.java:61)
~[sesame-sail-api-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 69 common frames omitted
Caused by: java.lang.NullPointerException: null
at
org.apache.marmotta.kiwi.persistence.KiWiConnection.constructTriplesFromDatabase(KiWiConnection.java:2014)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.fetchBatch(KiWiConnection.java:1717)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.hasNext(KiWiConnection.java:1699)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at info.aduna.iteration.DelayedIteration.hasNext(DelayedIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 76 common frames omitted
11:10:45.819 ERROR - error accessing RDF repository
org.openrdf.repository.RepositoryException: org.openrdf.sail.SailException:
database error while iterating over result set
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:38)
~[sesame-repository-sail-2.7.13.jar:na]
at
org.openrdf.repository.sail.SailCloseableIteration.convert(SailCloseableIteration.java:28)
~[sesame-repository-sail-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResultUtils$1.hasNext(ResultUtils.java:57)
~[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
com.google.common.collect.TransformedIterator.hasNext(TransformedIterator.java:43)
[guava-18.0.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLiteral(ResourceUtils.java:490)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getProperty(ResourceUtils.java:473)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1079)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1050)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.commons.sesame.repository.ResourceUtils.getLabel(ResourceUtils.java:1023)
[marmotta-commons-3.3.0-SNAPSHOT.jar:na]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl.getContextLabel(ContextServiceImpl.java:309)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.services.triplestore.ContextServiceImpl$Proxy$_$$_WeldClientProxy.getContextLabel(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService.listContexts(ContextWebService.java:87)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.webservices.triplestore.ContextWebService$Proxy$_$$_WeldClientProxy.listContexts(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_72]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
~[na:1.7.0_72]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.7.0_72]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_72]
at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.core.SynchronousDispatcher.invokePropagateNotFound(SynchronousDispatcher.java:217)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:224)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.jboss.resteasy.plugins.server.servlet.FilterDispatcher.doFilter(FilterDispatcher.java:62)
[resteasy-jaxrs-3.0.10.Final.jar:na]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:185)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter.doFilter(ModuleResourceFilter.java:157)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.ModuleResourceFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:182)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.MarmottaServerNameFilter.doFilter(MarmottaServerNameFilter.java:104)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter.doFilter(TemplatingFilter.java:176)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.filters.TemplatingFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter.doFilter(MarmottaAccessControlFilter.java:142)
[marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.security.filters.MarmottaAccessControlFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-security-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter.doFilter(MarmottaAuthenticationFilter.java:163)
[marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.user.filters.MarmottaAuthenticationFilter$Proxy$_$$_WeldClientProxy.doFilter(Unknown
Source) [marmotta-user-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter$MarmottaFilterChain.doFilter(MarmottaResourceFilter.java:180)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.platform.core.servlet.MarmottaResourceFilter.doFilter(MarmottaResourceFilter.java:133)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaPreStartupFilter.doFilter(MarmottaPreStartupFilter.java:106)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:208)
[cors-filter-2.2.1.jar:2.2.1]
at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:271)
[cors-filter-2.2.1.jar:2.2.1]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.marmotta.platform.core.servlet.MarmottaOptionsFilter.doFilter(MarmottaOptionsFilter.java:81)
[marmotta-core-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
[tomcat-embed-core-7.0.47.jar:7.0.47]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_72]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_72]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
Caused by: org.openrdf.sail.SailException: database error while iterating over
result set
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:308)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.sail.KiWiSailConnection$6$1.convert(KiWiSailConnection.java:301)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:81)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:74)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.UnionIteration.getNextElement(UnionIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
~[sesame-util-2.7.13.jar:na]
at info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
~[sesame-util-2.7.13.jar:na]
at
org.openrdf.sail.helpers.SailBaseIteration.hasNext(SailBaseIteration.java:61)
~[sesame-sail-api-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 69 common frames omitted
Caused by: java.lang.NullPointerException: null
at
org.apache.marmotta.kiwi.persistence.KiWiConnection.constructTriplesFromDatabase(KiWiConnection.java:2014)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.fetchBatch(KiWiConnection.java:1717)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
org.apache.marmotta.kiwi.persistence.KiWiConnection$14.hasNext(KiWiConnection.java:1699)
~[kiwi-triplestore-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at org.openrdf.repository.RepositoryResult.hasNext(RepositoryResult.java:66)
~[sesame-repository-api-2.7.13.jar:na]
at info.aduna.iteration.DelayedIteration.hasNext(DelayedIteration.java:78)
~[sesame-util-2.7.13.jar:na]
at
info.aduna.iteration.ExceptionConvertingIteration.hasNext(ExceptionConvertingIteration.java:78)
~[sesame-util-2.7.13.jar:na]
... 76 common frames omitted
