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https://issues.apache.org/jira/browse/ISIS-1852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364147#comment-16364147
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ASF subversion and git services commented on ISIS-1852:
-------------------------------------------------------
Commit c05e5ca8ea8b49d67a2be4209b4208151a64ef19 in isis's branch
refs/heads/master from [~danhaywood]
[ https://gitbox.apache.org/repos/asf?p=isis.git;h=c05e5ca ]
Merge branch 'ISIS-1852_parallel_stream_patch'
> Iterating over query result list with parallelStream produces next exception
> ----------------------------------------------------------------------------
>
> Key: ISIS-1852
> URL: https://issues.apache.org/jira/browse/ISIS-1852
> Project: Isis
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.15.1
> Reporter: Vladimir Nisevic
> Assignee: Andi Huber
> Priority: Major
> Fix For: 1.16.1, 2.0.0-M1
>
>
> Given the the result from database, e.g.
> {code:java}
> final List<MobileDevice> devices =
> repositoryService.allInstances(MobileDevice.class);{code}
> When I iterate over list with parallelStream
> {code:java}
> filteredDevices.parallelStream().forEach(mobileDevice -> {
> // my stuff here
> });{code}
> Then I get this exception
> {code:java}
> ... 134 more
> Caused by: java.lang.IllegalStateException: No service of type class
> org.apache.isis.core.runtime.services.metrics.MetricsServiceDefault is
> available on this
> at
> org.apache.isis.core.runtime.services.ServiceInstantiator$2.invoke(ServiceInstantiator.java:217)
> at
> org.apache.isis.core.runtime.services.metrics.MetricsServiceDefault_$$_jvstad5_7.postLoad(MetricsServiceDefault_$$_jvstad5_7.java)
> at
> org.datanucleus.api.jdo.JDOCallbackHandler.postLoad(JDOCallbackHandler.java:305)
> at org.datanucleus.state.StateManagerImpl.postLoad(StateManagerImpl.java:4443)
> at
> org.datanucleus.state.StateManagerImpl.initialiseForCachedPC(StateManagerImpl.java:645)
> at
> org.apache.isis.objectstore.jdo.datanucleus.JDOStateManagerForIsis.initialiseForCachedPC(JDOStateManagerForIsis.java:112)
> at
> org.datanucleus.state.ObjectProviderFactoryImpl.newForCachedPC(ObjectProviderFactoryImpl.java:280)
> at
> org.datanucleus.ExecutionContextImpl.getObjectFromLevel2Cache(ExecutionContextImpl.java:5210)
> at
> org.datanucleus.ExecutionContextImpl.getObjectFromCache(ExecutionContextImpl.java:5101)
> at
> org.datanucleus.ExecutionContextImpl.findObject(ExecutionContextImpl.java:3048)
> at
> org.datanucleus.store.rdbms.query.PersistentClassROF.getObjectForDatastoreId(PersistentClassROF.java:460)
> at
> org.datanucleus.store.rdbms.query.PersistentClassROF.getObject(PersistentClassROF.java:385)
> at
> org.datanucleus.store.rdbms.scostore.CollectionStoreIterator.<init>(CollectionStoreIterator.java:100)
> at
> org.datanucleus.store.rdbms.scostore.FKSetStore.iterator(FKSetStore.java:1080)
> at
> org.datanucleus.store.types.wrappers.backed.Collection.loadFromStore(Collection.java:374)
> at
> org.datanucleus.store.types.java8.wrappers.backed.Collection.stream(Collection.java:70)
> at
> a1.guidedselling.offer.hardware.MobileDevice.referenceNextDevicePriceForTarifWithoutService(MobileDevice.java:195)
> at
> a1.guidedselling.templates.OfferTemplatesRepository.lambda$offerTemplatesFor$1(OfferTemplatesRepository.java:102)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
> at
> java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:291)
> at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)
> at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
> at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
> at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
> at
> java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157){code}
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