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java.lang.ClassNotFoundException: org.apache.spark.Logging	at java.lang.ClassLoader.findClass(ClassLoader.java:530)	at org.apache.spark.util.ParentClassLoader.findClass(ParentClassLoader.scala:26)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at org.apache.spark.util.ParentClassLoader.loadClass(ParentClassLoader.scala:34)	at org.apache.spark.util.ChildFirstURLClassLoader.loadClass(MutableURLClassLoader.scala:55)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at org.apache.spark.util.ChildFirstURLClassLoader.loadClass(MutableURLClassLoader.scala:52)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at org.bdgenomics.adam.serialization.ADAMKryoRegistrator.registerClasses(ADAMKryoRegistrator.scala:85)	at org.broadinstitute.hellbender.engine.spark.GATKRegistrator.registerClasses(GATKRegistrator.java:74)	at org.apache.spark.serializer.KryoSerializer$$anonfun$newKryo$6.apply(KryoSerializer.scala:125)	at org.apache.spark.serializer.KryoSerializer$$anonfun$newKryo$6.apply(KryoSerializer.scala:125)	at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)	at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)	at org.apache.spark.serializer.KryoSerializer.newKryo(KryoSerializer.scala:125)	at org.apache.spark.serializer.KryoSerializerInstance.borrowKryo(KryoSerializer.scala:274)	at org.apache.spark.serializer.KryoSerializerInstance.(KryoSerializer.scala:259)	at org.apache.spark.serializer.KryoSerializer.newInstance(KryoSerializer.scala:175)	at org.apache.spark.broadcast.TorrentBroadcast$.blockifyObject(TorrentBroadcast.scala:233)	at org.apache.spark.broadcast.TorrentBroadcast.writeBlocks(TorrentBroadcast.scala:107)	at org.apache.spark.broadcast.TorrentBroadcast.(TorrentBroadcast.scala:86)	at org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:34)	at org.apache.spark.broadcast.BroadcastManager.newBroadcast(BroadcastManager.scala:56)	at org.apache.spark.SparkContext.broadcast(SparkContext.scala:1370)	at org.apache.spark.rdd.NewHadoopRDD.(NewHadoopRDD.scala:76)	at org.apache.spark.SparkContext$$anonfun$newAPIHadoopFile$2.apply(SparkContext.scala:1074)	at org.apache.spark.SparkContext$$anonfun$newAPIHadoopFile$2.apply(SparkContext.scala:1065)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)	at org.apache.spark.SparkContext.withScope(SparkContext.scala:682)	at org.apache.spark.SparkContext.newAPIHadoopFile(SparkContext.scala:1065)	at org.apache.spark.api.java.JavaSparkContext.newAPIHadoopFile(JavaSparkContext.scala:474)	at org.broadinstitute.hellbender.engine.spark.datasources.ReadsSparkSource.getParallelReads(ReadsSparkSource.java:104)	at org.broadinstitute.hellbender.engine.spark.GATKSparkTool.getUnfilteredReads(GATKSparkTool.java:235)	at org.broadinstitute.hellbender.engine.spark.GATKSparkTool.getReads(GATKSparkTool.java:209)	at org.broadinstitute.hellbender.tools.spark.transforms.markduplicates.MarkDuplicatesSpark.runTool(MarkDuplicatesSpark.java:65)	at org.broadinstitute.hellbender.engine.spark.GATKSparkTool.runPipeline(GATKSparkTool.java:348)	at org.broadinstitute.hellbender.engine.spark.SparkCommandLineProgram.doWork(SparkCommandLineProgram.java:38)	at org.broadinstitute.hellbender.cmdline.CommandLineProgram.runTool(CommandLineProgram.java:109)	at org.broadinstitute.hellbender.cmdline.CommandLineProgram.instanceMainPostParseArgs(CommandLineProgram.java:167)	at org.broadinstitute.hellbender.cmdline.CommandLineProgram.instanceMain(CommandLineProgram.java:186)	at org.broadinstitute.hellbender.Main.instanceMain(Main.java:76)	at org.broadinstitute.hellbender.Main.main(Main.java:92)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:729)	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:185)	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:210)	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:124)	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)