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<p style="margin: 10px 0 0 0">In our code the lookup for the bean manager isn't directly the first call using the lambda expression within the parallel stream. It is being called in a class that is also used by other methods in other threads. I don't want to share the bean manager within the for/join-pool threads but because the code structure the lookup is necessary at a specific point.</p>
<p style="margin: 10px 0 0 0">Maybe follow code snippet and the error trace will show what I mean:</p>
<p style="margin: 10px 0 0 0"><b>Code</b><br /> _<em>queryDocResults.parallelStream().forEach(r -> createDocumentEntry(r.getXdsObjectObjId(), r.getXdsObjectUUID(), r.getHome()));</em></p>
<p style="margin: 10px 0 0 0"><b>Stack Trace</b><br /> java.lang.RuntimeException: Couldn't get BeanManager through JNDI Lookup<br /> at marabu.common.tools.CDIHelper.getCDIInstance(CDIHelper.java:31)<br /> at marabu.pegasos.server.ihe.xds_b.tools.XDSInfosetHelper.createPatientIdExternalIdentifier(XDSInfosetHelper.java:721)<br /> at marabu.pegasos.server.ihe.xds_b.core.spi.metadata.XDSDocumentEntry.<init>(XDSDocumentEntry.java:280)<br /> at marabu.pegasos.server.ihe.xds_b.core.service.helper.query.registry.AbstractQuery.createDocumentEntry(AbstractQuery.java:637)<br /> at marabu.pegasos.server.ihe.xds_b.core.service.helper.query.registry.AbstractQuery.lambda$buildQueryResponseObjects$4(AbstractQuery.java:572)<br /> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)<br /> at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)<br /> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)<br /> at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:291)<br /> at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)<br /> at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)<br /> at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)<br /> at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)<br /> at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)<br /> Caused by: javax.naming.NameNotFoundException: java:comp/BeanManager<br /> at javax.naming.InitialContext.lookup(InitialContext.java:417)<br /> at javax.naming.InitialContext.lookup(InitialContext.java:417)<br /> at javax.naming.InitialContext.doLookup(InitialContext.java:290)<br /> at marabu.common.tools.CDIHelper.getCDIInstance(CDIHelper.java:28)<br /> ... 13 more</p>
<p style="margin: 10px 0 0 0">Within the method XDSInfosetHelper.createPatientIdExternalIdentifier() the lookup for the bean manager is needed because the XDSInfosetHelper is not a managed bean instance. In the class CDIHelper the lookup is done. I use this helper class when I don't have a managed bean as source but I want to access a managed bean.<br /> The error is the same as I would write follow:</p>
<p style="margin: 10px 0 0 0">_Thread th = new Thread() {</p>
<p style="margin: 10px 0 0 0"> public void run() </p> { InitialContext.doLookup("java:comp/BeanManager"); }
<p style="margin: 10px 0 0 0">};_</p>
<p style="margin: 10px 0 0 0">As described in the weld documentation the Bean Manager is only available in a managed environment. When I would use a managed thread this the lookup would work. But I can't create a Managed Thread when using the ForkJoinPool.</p>
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