I am working in migrating from Swing to SWT. Some part of the existing application has Java2D contents (diagrams). Is it possible to reuse the Java2D part in SWT?
It's possible to use Swing components within your SWT application, although last time I checked this worked only on Windows, and was supported only in an internal package. But they were working on making it an exported API and also giving it cross-platform support.
Search for the Eclipse API class named "SWT_AWT" to check its current status.