## What changes were proposed in this pull request?

We have a private `UDTRegistration` API to register user defined type. Currently `JavaTypeInference` can't work with it. So `SparkSession.createDataFrame` from a bean class will not correctly infer the schema of the bean class.

## How was this patch tested?
`VectorUDTSuite`.

Author: Liang-Chi Hsieh <simonh@tw.ibm.com>

Closes #13046 from viirya/fix-udt-registry-javatypeinference.