[Java] Is hardcoding NullVector .getField() intentional?

[Al Taylor]

Hi,

I recently encountered the fact that the .getField() method of NullVector 
returns a Field with a hardcoded name. 
https://github.com/apache/arrow/blob/apache-arrow-5.0.0/java/vector/src/main/java/org/apache/arrow/vector/NullVector.java#L66

This is currently hardcoded to   

public static final String DATA_VECTOR_NAME = "$data$";

Is this intentional?
This means that one wouldn't be able reconstruct a usable schema from a list of 
FieldVectors, for example.

Thanks,

Al