> findParent(EditPanel.class) That's a good solution if you want to help keep your code clean. However, having direct references - while it can get messy when you have very deep nestings, means that your code is statically bound, which can be an advantage when you have to refactor or navigate your code. It's subjective, but I find working with nested classes convenient, and this can save you from having to pass variables in constructors all the time.
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