java.util.ConcurrentModificationException: null

Stack Overflow | user2917629 | 3 months ago
  1. 0

    MQTT binding slow/hangs on startup

    Google Groups | 3 years ago | Ben Jones
    java.util.ConcurrentModificationException: null
  2. 0

    Synchronization problem in ItemProvider

    GitHub | 3 years ago | openhab-bot
    java.util.ConcurrentModificationException: null
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  4. 0

    Could not commit transaction due to exception java.util.ConcurrentModificationException

    Google Groups | 2 years ago | Etienne Couritas
    java.util.ConcurrentModificationException: null
  5. 0

    openHAB becoming very unstable

    Google Groups | 3 years ago | Ben Jones
    org.eclipse.paho.client.mqttv3.MqttException: MqttException
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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    null

    at java.util.ArrayList$Itr.checkForComodification()
  2. Java RT
    ArrayList$Itr.next
    1. java.util.ArrayList$Itr.checkForComodification(ArrayList.java:886)
    2. java.util.ArrayList$Itr.next(ArrayList.java:836)
    2 frames
  3. OpenRDF Sesame: Model
    TreeModel.contains
    1. org.openrdf.model.impl.TreeModel.choose(TreeModel.java:474)
    2. org.openrdf.model.impl.TreeModel.matchPattern(TreeModel.java:406)
    3. org.openrdf.model.impl.TreeModel.contains(TreeModel.java:250)
    3 frames
  4. OpenRDF Sesame: NativeStore
    MemoryOverflowModel.contains
    1. org.openrdf.sail.nativerdf.MemoryOverflowModel.contains(MemoryOverflowModel.java:127)
    1 frame
  5. OpenRDF Sesame: Model
    AbstractModel.isEmpty
    1. org.openrdf.model.impl.FilteredModel.contains(FilteredModel.java:157)
    2. org.openrdf.model.impl.AbstractModel.isEmpty(AbstractModel.java:58)
    2 frames
  6. org.openrdf.sail
    SailSourceConnection.getStatementsInternal
    1. org.openrdf.sail.base.SailDatasetImpl.difference(SailDatasetImpl.java:286)
    2. org.openrdf.sail.base.SailDatasetImpl.getStatements(SailDatasetImpl.java:265)
    3. org.openrdf.sail.base.DelegatingSailDataset.getStatements(DelegatingSailDataset.java:79)
    4. org.openrdf.sail.base.DelegatingSailDataset.getStatements(DelegatingSailDataset.java:79)
    5. org.openrdf.sail.base.UnionSailDataset.getStatements(UnionSailDataset.java:111)
    6. org.openrdf.sail.base.SailSourceConnection.getStatementsInternal(SailSourceConnection.java:258)
    6 frames
  7. OpenRDF Sesame: Sail API
    SailConnectionBase.getStatements
    1. org.openrdf.sail.helpers.SailConnectionBase.getStatements(SailConnectionBase.java:328)
    1 frame
  8. org.openrdf.sail
    LuceneTripleSource.getStatements
    1. org.openrdf.sail.lucene.LuceneTripleSource.getStatements(LuceneTripleSource.java:284)
    1 frame
  9. OpenRDF Sesame: Query algebra - evaluation
    LeftJoinIterator.getNextElement
    1. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:517)
    2. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:226)
    3. org.openrdf.query.algebra.evaluation.iterator.JoinIterator.<init>(JoinIterator.java:54)
    4. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:861)
    5. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:824)
    6. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:232)
    7. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.<init>(LeftJoinIterator.java:65)
    8. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:883)
    9. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:827)
    10. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:232)
    11. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.<init>(LeftJoinIterator.java:65)
    12. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:883)
    13. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:827)
    14. org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl.evaluate(EvaluationStrategyImpl.java:232)
    15. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:88)
    16. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:33)
    16 frames
  10. OpenRDF Sesame: util
    LookAheadIteration.hasNext
    1. info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
    2. info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
    2 frames
  11. OpenRDF Sesame: Query algebra - evaluation
    LeftJoinIterator.getNextElement
    1. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:80)
    2. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:33)
    2 frames
  12. OpenRDF Sesame: util
    LookAheadIteration.hasNext
    1. info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
    2. info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
    2 frames
  13. OpenRDF Sesame: Query algebra - evaluation
    LeftJoinIterator.getNextElement
    1. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:80)
    2. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:33)
    2 frames
  14. OpenRDF Sesame: util
    LookAheadIteration.hasNext
    1. info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
    2. info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
    2 frames
  15. OpenRDF Sesame: Query algebra - evaluation
    LeftJoinIterator.getNextElement
    1. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:80)
    2. org.openrdf.query.algebra.evaluation.iterator.LeftJoinIterator.getNextElement(LeftJoinIterator.java:33)
    2 frames
  16. OpenRDF Sesame: util
    IterationWrapper.hasNext
    1. info.aduna.iteration.LookAheadIteration.lookAhead(LookAheadIteration.java:91)
    2. info.aduna.iteration.LookAheadIteration.hasNext(LookAheadIteration.java:60)
    3. info.aduna.iteration.ConvertingIteration.hasNext(ConvertingIteration.java:73)
    4. info.aduna.iteration.ConvertingIteration.hasNext(ConvertingIteration.java:73)
    5. info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
    6. info.aduna.iteration.FilterIteration.findNextElement(FilterIteration.java:79)
    7. info.aduna.iteration.FilterIteration.hasNext(FilterIteration.java:54)
    8. info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
    9. info.aduna.iteration.LimitIteration.hasNext(LimitIteration.java:73)
    10. info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
    11. info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
    11 frames
  17. org.openrdf.query
    QueryResults.report
    1. org.openrdf.query.QueryResults.report(QueryResults.java:155)
    1 frame
  18. org.openrdf.http
    QueryResultView.render
    1. org.openrdf.http.server.repository.TupleQueryResultView.renderInternal(TupleQueryResultView.java:110)
    2. org.openrdf.http.server.repository.QueryResultView.render(QueryResultView.java:84)
    2 frames
  19. Spring MVC
    FrameworkServlet.doPost
    1. org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
    2. org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
    3. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
    4. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    5. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    6. org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
    6 frames
  20. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    1 frame
  21. Spring MVC
    FrameworkServlet.service
    1. org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    1 frame
  22. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    1 frame
  23. Glassfish Core
    ApplicationFilterChain.doFilter
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    2 frames
  24. com.github.ziplet
    CompressingFilter.doFilter
    1. com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
    1 frame
  25. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    8. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    10 frames
  26. Grizzly HTTP
    JIoEndpoint$SocketProcessor.run
    1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    3. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    3 frames
  27. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    3. java.lang.Thread.run(Thread.java:745)
    3 frames