I'm using a JTable (specifically a JXTable) and when I hover over a cell I would like to present some sort of JPanel or Component (to show some graphical data using JFreeChart)
I know the JTable has this:
but that is obviously just a way to show a textual tooltip. Any ideas or solutions to do this?

You can show a pop up on mouse over and you can customize the pop up window however you want. I hope the below piece of code would help.