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java.lang.UnsupportedOperationException: tail of empty list	at scala.collection.immutable.Nil$.tail(List.scala:339)	at scala.collection.immutable.Nil$.tail(List.scala:334)	at scala.reflect.internal.SymbolTable.popPhase(SymbolTable.scala:172)	at scala.reflect.internal.Symbols$Symbol.typeParams(Symbols.scala:1489)	at scala.reflect.internal.Types$NoArgsTypeRef.typeParams(Types.scala:2144)	at scala.reflect.internal.Types$TypeRef.initializedTypeParams(Types.scala:2408)	at scala.reflect.internal.Types$TypeRef.typeParamsMatchArgs(Types.scala:2409)	at scala.reflect.internal.Types$AliasTypeRef$class.dealias(Types.scala:2232)	at scala.reflect.internal.Types$TypeRef$anon$3.dealias(Types.scala:2539)	at scala.reflect.runtime.JavaMirrors$JavaMirror.typeToJavaClass(JavaMirrors.scala:1259)	at scala.reflect.runtime.JavaMirrors$JavaMirror.runtimeClass(JavaMirrors.scala:202)	at scala.reflect.runtime.JavaMirrors$JavaMirror.runtimeClass(JavaMirrors.scala:65)	at org.apache.spark.sql.types.AtomicType.(DataType.scala:96)	at org.apache.spark.sql.types.TimestampType.(TimestampType.scala:37)	at sun.reflect.GeneratedSerializationConstructorAccessor89.newInstance(Unknown Source)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:967)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1785)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1707)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1345)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at scala.collection.immutable.$colon$colon.readObject(List.scala:362)	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at scala.collection.immutable.$colon$colon.readObject(List.scala:362)	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at scala.collection.immutable.$colon$colon.readObject(List.scala:362)	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at scala.collection.immutable.$colon$colon.readObject(List.scala:362)	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at scala.collection.immutable.$colon$colon.readObject(List.scala:362)	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:69)	at org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:95)	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:58)	at org.apache.spark.scheduler.Task.run(Task.scala:70)	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)