query7: fails in spark on streaming mode (not PCollectionView in streaming mode)

[echauchot]

Exception in thread "main" java.lang.IllegalStateException: No TransformEvaluator registered for UNBOUNDED transform class org.apache.beam.sdk.transforms.View$CreatePCollectionView
	at com.google.common.base.Preconditions.checkState(Preconditions.java:518)
	at org.apache.beam.runners.spark.translation.streaming.StreamingTransformTranslator$Translator.translateUnbounded(StreamingTransformTranslator.java:529)
	at org.apache.beam.runners.spark.SparkRunner$Evaluator.translate(SparkRunner.java:435)
	at org.apache.beam.runners.spark.SparkRunner$Evaluator.doVisitTransform(SparkRunner.java:405)
	at org.apache.beam.runners.spark.SparkRunner$Evaluator.visitPrimitiveTransform(SparkRunner.java:395)
	at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:488)
	at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:483)
	at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:483)
	at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:483)
	at org.apache.beam.sdk.runners.TransformHierarchy$Node.access$400(TransformHierarchy.java:232)
	at org.apache.beam.sdk.runners.TransformHierarchy.visit(TransformHierarchy.java:207)
	at org.apache.beam.sdk.Pipeline.traverseTopologically(Pipeline.java:384)
	at org.apache.beam.runners.spark.translation.streaming.SparkRunnerStreamingContextFactory.call(SparkRunnerStreamingContextFactory.java:88)
	at org.apache.beam.runners.spark.translation.streaming.SparkRunnerStreamingContextFactory.call(SparkRunnerStreamingContextFactory.java:47)
	at org.apache.spark.streaming.api.java.JavaStreamingContext$$anonfun$10.apply(JavaStreamingContext.scala:776)
	at org.apache.spark.streaming.api.java.JavaStreamingContext$$anonfun$10.apply(JavaStreamingContext.scala:775)
	at scala.Option.getOrElse(Option.scala:120)
	at org.apache.spark.streaming.StreamingContext$.getOrCreate(StreamingContext.scala:864)
	at org.apache.spark.streaming.api.java.JavaStreamingContext$.getOrCreate(JavaStreamingContext.scala:775)
	at org.apache.spark.streaming.api.java.JavaStreamingContext.getOrCreate(JavaStreamingContext.scala)
	at org.apache.beam.runners.spark.SparkRunner.run(SparkRunner.java:155)
	at org.apache.beam.runners.spark.SparkRunner.run(SparkRunner.java:85)
	at org.apache.beam.sdk.Pipeline.run(Pipeline.java:277)
	at org.apache.beam.integration.nexmark.NexmarkRunner.run(NexmarkRunner.java:1281)
	at org.apache.beam.integration.nexmark.NexmarkDriver.runAll(NexmarkDriver.java:69)
	at org.apache.beam.integration.nexmark.drivers.NexmarkSparkDriver.main(NexmarkSparkDriver.java:46)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

https://issues.apache.org/jira/browse/BEAM-2112