Allow null UDTs to nested JavaBean #1325
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Description
How did the Spark Cassandra Connector Work or Not Work Before this Patch
Unable to read row and map to JavaBean when the record contains null udt values
General Design of the patch
Change GettableDataToMappedTypeConverter to extend from NullableTypeConverter instead of TypeConverter.
JIRA - https://datastax-oss.atlassian.net/browse/SPARKC-668
How Has This Been Tested?
Unit Tested
Checklist: