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## What changes were proposed in this pull request? The current master throws `StackOverflowError` in `createDataFrame`/`createDataset` if bean has one's own class in fields; ``` public class SelfClassInFieldBean implements Serializable { private SelfClassInFieldBean child; ... } ``` This pr added code to throw `UnsupportedOperationException` in that case as soon as possible. ## How was this patch tested? Added tests in `JavaDataFrameSuite` and `JavaDatasetSuite`. Author: Takeshi Yamamuro <yamamuro@apache.org> Closes #17188 from maropu/SPARK-19751. |
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