[
https://issues.apache.org/jira/browse/SPARK-19751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wenchen Fan resolved SPARK-19751.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
Issue resolved by pull request 17188
[https://github.com/apache/spark/pull/17188]
> Create Data frame API fails with a self referencing bean
> --------------------------------------------------------
>
> Key: SPARK-19751
> URL: https://issues.apache.org/jira/browse/SPARK-19751
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Avinash Venkateshaiah
> Priority: Minor
> Fix For: 2.2.0
>
>
> createDataset API throws a stack overflow exception when we try creating a
> Dataset using a bean encoder. The bean is self referencing
> BEAN:
> public class HierObj implements Serializable {
> String name;
> List<HierObj> children;
> public String getName() {
> return name;
> }
> public void setName(String name) {
> this.name = name;
> }
> public List<HierObj> getChildren() {
> return children;
> }
> public void setChildren(List<HierObj> children) {
> this.children = children;
> }
> }
> // create an object
> HierObj hierObj = new HierObj();
> hierObj.setName("parent");
> List children = new ArrayList();
> HierObj child1 = new HierObj();
> child1.setName("child1");
> HierObj child2 = new HierObj();
> child2.setName("child2");
> children.add(child1);
> children.add(child2);
> hierObj.setChildren(children);
> // create a dataset
> Dataset ds = sparkSession().createDataset(Arrays.asList(hierObj),
> Encoders.bean(HierObj.class));
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