當(dāng)我嘗試創(chuàng)建數(shù)據(jù)集并從中收集數(shù)據(jù)時，我遇到了一個奇怪的異常。Exception in thread "main" java.lang.NumberFormatException: Zero length BigInteger    at java.math.BigInteger.<init>(BigInteger.java:302)    at org.apache.spark.sql.catalyst.expressions.UnsafeRow.getDecimal(UnsafeRow.java:405)    at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.writeFields_3_3$(generated.java:298)    at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(generated.java:35)    at org.apache.spark.sql.execution.LocalTableScanExec$$anonfun$unsafeRows$1.apply(LocalTableScanExec.scala:41)    at org.apache.spark.sql.execution.LocalTableScanExec$$anonfun$unsafeRows$1.apply(LocalTableScanExec.scala:41)    at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)    at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)    at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)執(zhí)行代碼如下所示：List<SimplePojo> list ...Dataset<SimplePojo> ds = sparkSession.createDataset(list, Encoders.bean(SimplePojo.class))ds.collectoAsList();SimplePojo 類包含一個方法 getSomething（），這顯然會導(dǎo)致異常。當(dāng)我注釋掉它時，一切都很好。public class SimplePojo {   private int id;   private OtherPojo otherPojo = new OtherPojo();   @Deprecated // required by park serialization. Use builder   public SimplePojo(){}   publi int getId(){      return id;   }   public String getSomething() {      return otherPojo.getSomething();   }   // sets ...}有沒有人知道可能發(fā)生了什么？