[CAUSEWAY-1852] Iterating over query result list with parallelStream produces next exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 1.15.1, 1.16.0
• Fix Version/s: 2.0.0-M1
• Component/s: Core
• Assignee: Andi Huber
• Reporter: Vladimir Nisevic
• Created: 25/Jan/18 11:32
• Updated: 14/Feb/18 17:21
• Resolved: 29/Jan/18 14:09

Description

Given the the result from database, e.g.

final List<MobileDevice> devices = repositoryService.allInstances(MobileDevice.class);

When I iterate over list with parallelStream

filteredDevices.parallelStream().forEach(mobileDevice -> {
// my stuff here
});

Then I get this exception

... 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)