On Mon, 26 Sep 2022 02:27:53 GMT, SWinxy <d...@openjdk.org> wrote:
> New documentation replaces the `This value can be null.`:
>
> When created, {@link #invalidate() invalidated}, or {@link #reset() reset},
> this becomes {@code null}. To get out of the null state,
> {@link #getBounds()} called with {@link #npoints} being greater than
> {@code 0} will transfer into a non-null {@link Rectangle}.
>
>
> I think I've got the reason for why it can be `null` correct, but you never
> know.
>
> In javax.swing.text.html.Map, I've replaced setting the field to null with
> the equivalent #invalidate(). This may mean we can make the field private in
> the future.
src/java.desktop/share/classes/java/awt/Polygon.java line 111:
> 109: * {@link #getBounds()} called with {@link #npoints} being greater
> than
> 110: * {@code 0} will transfer into a non-null {@link Rectangle}.
> 111: *
Another dubious piece of design. This should never have been exposed in the API.
What we need to say here is
/*
* The value of this field is updated by the implementation which may set it to
null and will
* re-evaluate it as needed. Application sub-classes should never access this
field.
*/
And leave it at that.
-------------
PR: https://git.openjdk.org/jdk/pull/10417
