The SWT-AWT bridge uses platform-specific subclasses of sun.awt.EmbeddedFrame.
The encapsulation rules of the JDK9 module system will prohibit this.

See https://bugs.eclipse.org/bugs/show_bug.cgi?id=482318
and http://mail.openjdk.java.net/pipermail/jigsaw-dev/2015-December/005704.html
and this follow-up:
http://mail.openjdk.java.net/pipermail/jigsaw-dev/2016-January/006061.html

We should investigate alternatives, for example by extending JAWT
or perhaps a carefully crafted standard API.