Support for XToolkit (AIX, Linux, and z/OS only)

XToolkit is included by default. You need XToolkit when using the SWT_AWT bridge in Eclipse to build an application that uses both SWT and Swing.

Restriction: Motif is no longer supported and will be removed in a later release.

Related links:

Reference Information in the Eclipse information center: http://help.eclipse.org/kepler/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/api/org/eclipse/swt/awt/SWT_AWT.html
Set up information is available on the Oracle Corporation website: https://docs.oracle.com/javase/8/docs/technotes/guides/awt/1.5/xawt.html