Proposal on getting warning free (controls) packages

John Hendrikx hjohn at
Fri Mar 21 08:49:18 UTC 2014

On 20/03/2014 20:57, Tom Schindl wrote:
> Hi,
> I've just started looking into getting the controls package warning free
> and/or suppress them in case not fixable.
> Most of the generic warnings I've come accross in a first pass involve
> StyleableProperty cast like this:
> ((StyleableProperty)graphicProperty()).applyStyle(origin, null);
> In fact above code has 2 warnings:
> a) unchecked type cast
> b) usage of raw-type
> the raw type in this case can be fixed with:
> ((StyleableProperty<Node>)graphicProperty()).applyStyle(origin, null);
> leaving us with the unchecked cast so we could add:
> @SuppressWarnings({ "unchecked" })
> e.g. on the method but I'm uncertain this is a good idea because it
> might hide unchecked warnings we have a possibility to fix.

If you are willing to expend another line of code, you could first 
assign graphicProperty to a variable:

   StylableProperty<Node>  property = (StyleableProperty<Node>)graphicProperty();

     property.applyStyle(origin, null);

You can then apply the unchecked annotation to the assignment only, so 
future unchecked warnings in the same method will still be noticed.

> So what are other options:
> a) Create a static helper in Util to make the cast and for us (we could
>     even add it as a static method in the StyleableProperty-interface)
> b) provide a private/package-scoped method the public one delegates
> Both of them work but have different problems where I think b) has the
> bigger ones like blowing up class-file, modification of the field to be
> of type StyleableObjectProperty.
> I'd really like to get the source warning free.
> Thoughts?
> Tom

More information about the openjfx-dev mailing list