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From "Kaya Kupferschmidt (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-24742) Field Metadata raises NullPointerException in hashCode method
Date Thu, 05 Jul 2018 06:00:00 GMT
Kaya Kupferschmidt created SPARK-24742:
------------------------------------------

             Summary: Field Metadata raises NullPointerException in hashCode method
                 Key: SPARK-24742
                 URL: https://issues.apache.org/jira/browse/SPARK-24742
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.1
            Reporter: Kaya Kupferschmidt


The class org.apache.spark.sql.types.Metadata has a method *putNull* for storing null pointers
as Metadata. Unfortunately the hashCode method throws a NullPointerException when there are
null values in a Metadata object, rendering the *puNull* method useless.

h2. How to Reproduce
The following code will raise a NullPointerException
{code}
new MetadataBuilder().putNull("key").build().hashCode
{code}



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