[9] Review request: 8170702: Document that javafx.graphics needs explicit access to application main class

[Mandy Chung]

> On Mar 4, 2017, at 5:15 PM, Kevin Rushforth <kevin.rushforth at oracle.com> wrote:
> 
> http://cr.openjdk.java.net/~kcr/8170702/webrev.01/

Nit: @linkplain will show the normal font as text in javadoc rather than like the font for {@code…} 

 209      * be a public subclass of Application, in a package that is
 210      * {@link Module#isExported(String,Module) exported} to at least the
 211      * {@code javafx.graphics} module, or a RuntimeException will be thrown.

Should it mention the public constructor?  No need to have a new webrev if you update this before you push.

Mandy