About Question enthuware.oce-jpad.v6.2.412 :

[ricardoespsanto]

Am I being way too picky on this? If so I apologise, that was not my intent. =)

@AttributeOverrides( //This is optional and is used here because we are overriding multiple column names.

it is not optional because we Are indeed overriding multiple columns. It would be optional if only one column was being override right?

[admin]

No, you are right What it is trying to say is that this annotation is optional, but it is used here because we are overriding the column names. In other words, if we didn't want to override the column names, we don't have to use it.