Draw trees with links between them

I'm developing a schema matching visualization tool. I have the problem that I have to draw trees and开发者_JAVA百科 the links between them like this image:

However, the tool in the image uses Swing but I use JFace. Is there any visualization toolkit that support this ?

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I know this a bit post is old, but it keeps coming up when I search for a solution to connect two nodes in JFace TreeViewer. On JFace forum it was suggested to look at Nebula TreeMapper. Hope this helps someone.