Dan Meany created SPARK-22373:
---------------------------------

             Summary: Intermittent NullPointerException in 
org.codehaus.janino.IClass.isAssignableFrom
                 Key: SPARK-22373
                 URL: https://issues.apache.org/jira/browse/SPARK-22373
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.1.1
         Environment: Hortonworks distribution: HDP 2.6.2.0-205 , 
/usr/hdp/current/spark2-client/jars/spark-core_2.11-2.1.1.2.6.2.0-205.jar

            Reporter: Dan Meany
            Priority: Minor


Very occasional and retry works.

Full stack:
17/10/27 21:06:15 ERROR Executor: Exception in task 29.0 in stage 12.0 (TID 758)
java.lang.NullPointerException
        at org.codehaus.janino.IClass.isAssignableFrom(IClass.java:569)
        at 
org.codehaus.janino.UnitCompiler.isWideningReferenceConvertible(UnitCompiler.java:10347)
        at 
org.codehaus.janino.UnitCompiler.isMethodInvocationConvertible(UnitCompiler.java:8636)
        at 
org.codehaus.janino.UnitCompiler.findMostSpecificIInvocable(UnitCompiler.java:8427)
        at 
org.codehaus.janino.UnitCompiler.findMostSpecificIInvocable(UnitCompiler.java:8285)
        at org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:8169)
        at org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:8071)
        at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:4421)
        at org.codehaus.janino.UnitCompiler.access$7500(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$12.visitMethodInvocation(UnitCompiler.java:3774)
        at 
org.codehaus.janino.UnitCompiler$12.visitMethodInvocation(UnitCompiler.java:3762)
        at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:4328)
        at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java:3762)
        at 
org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java:4933)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:3180)
        at org.codehaus.janino.UnitCompiler.access$5000(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$9.visitMethodInvocation(UnitCompiler.java:3151)
        at 
org.codehaus.janino.UnitCompiler$9.visitMethodInvocation(UnitCompiler.java:3139)
        at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:4328)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:3139)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2112)
        at org.codehaus.janino.UnitCompiler.access$1700(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1377)
        at 
org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1370)
        at org.codehaus.janino.Java$ExpressionStatement.accept(Java.java:2558)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:1370)
        at 
org.codehaus.janino.UnitCompiler.compileStatements(UnitCompiler.java:1450)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:2811)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:550)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:890)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:894)
        at org.codehaus.janino.UnitCompiler.access$600(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:377)
        at 
org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:369)
        at 
org.codehaus.janino.Java$MemberClassDeclaration.accept(Java.java:1128)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
        at 
org.codehaus.janino.UnitCompiler.compileDeclaredMemberTypes(UnitCompiler.java:1209)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:564)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:890)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:894)
        at org.codehaus.janino.UnitCompiler.access$600(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:377)
        at 
org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:369)
        at 
org.codehaus.janino.Java$MemberClassDeclaration.accept(Java.java:1128)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
        at 
org.codehaus.janino.UnitCompiler.compileDeclaredMemberTypes(UnitCompiler.java:1209)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:564)
        at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:420)
        at org.codehaus.janino.UnitCompiler.access$400(UnitCompiler.java:206)
        at 
org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:374)
        at 
org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:369)
        at 
org.codehaus.janino.Java$AbstractPackageMemberClassDeclaration.accept(Java.java:1309)
        at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
        at org.codehaus.janino.UnitCompiler.compileUnit(UnitCompiler.java:345)
        at 
org.codehaus.janino.SimpleCompiler.compileToClassLoader(SimpleCompiler.java:396)
        at 
org.codehaus.janino.ClassBodyEvaluator.compileToClass(ClassBodyEvaluator.java:311)
        at 
org.codehaus.janino.ClassBodyEvaluator.cook(ClassBodyEvaluator.java:229)
        at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:196)
        at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:91)
        at 
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.org$apache$spark$sql$catalyst$expressions$codegen$CodeGenerator$$doCompile(CodeGenerator.scala:959)
        at 
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:1026)
        at 
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:1023)
        at 
org.spark_project.guava.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3599)
        at 
org.spark_project.guava.cache.LocalCache$Segment.loadSync(LocalCache.java:2379)
        at 
org.spark_project.guava.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2342)
        at 
org.spark_project.guava.cache.LocalCache$Segment.get(LocalCache.java:2257)
        at org.spark_project.guava.cache.LocalCache.get(LocalCache.java:4000)
        at 
org.spark_project.guava.cache.LocalCache.getOrLoad(LocalCache.java:4004)
        at 
org.spark_project.guava.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
        at 
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.compile(CodeGenerator.scala:908)
        at 
org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8.apply(WholeStageCodegenExec.scala:372)
        at 
org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8.apply(WholeStageCodegenExec.scala:371)
        at 
org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1$$anonfun$apply$26.apply(RDD.scala:844)
        at 
org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1$$anonfun$apply$26.apply(RDD.scala:844)
        at 
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
        at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
        at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)
        at 
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
        at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
        at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:96)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53)
        at org.apache.spark.scheduler.Task.run(Task.scala:99)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:322)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
17/10/27 21:06:15 INFO CodeGenerator: Code generated in 8.896831 ms

Intermittent nature of problem makes me suspect the cache or a thread-related 
issue.
Some the SQL that appears in the area of the code line reported in Spark UI:
     dense_rank() over (partition by itemid, type order by 
sum(col_a)+(sum(col_b)/1000000000000000.0) desc) as rank, 
             ...where cast(mytimestampfield as String) >= '$mydate'
           




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