从IBMBlueMix对象存储中加载的数据帧上的Count（）启用Inferschema时会引发以下异常：Name:org.apache.spark.SparkExceptionMessage:Jobabortedduetostagefailure:Task3instage43.0failed10times,mostrecentfailure:Losttask3.9instage43.0(TID166,yp-spark-dal09-env5-0034):java.lang.NumberFormatException:nullatjava.lang.Integer.parseInt(Intege