Just curious, DataInput.readUTF() ?

[Tom Zeller]

As part of figuring out IDP-616, I see that the key used to seal data
is determined by readUTF() :

 final String keyAlias = inputDataStream.readUTF();

For my own education, I wondered how readUTF() returns the key from
the wrapped data, and I just don't get it.

So, Scott, if you have any free cycles, feel free to clue me in, whenever.

Thanks !