When you open a XML in Eclipse, the content can be shown in as a tree structure like
The tree is "embedded" in a table and the content is showed in a seperate column.
This would be very nice to replicate in Swing, not for XML content specifically, but for similar data with tree structure.
UPDATE
I just learned about JTreeTable, but I really need to do this in NetNeans. Should probably have mentioned that, sorry.
Any ideas?