While HHH-12011 Closed specifically targeted arrays, collections are also susceptible to the same problem. The following illustrates one additional example of where TYPE_USE creates problems with metamodel generation:

@ElementCollection
@NotNull
private Map<@NotNull Integer, @NotNull byte[]> doorCodes;

@ElementCollection
@NotNullAllowed
private Set<@NotNull String> computerSerialNumbers;

@ElementCollection
@NotNull
private List<@NotNull String> employeeNames;

@ElementCollection
@NotNull
private List<@NotNull Room> rooms;

I'm also checking other variants but I have not yet found any others beyond what was identified in HHH-12011 Closed and the above.