I know Xcode has a
#pragma mark
feature where it allows you to insert arbitrary labels in outline views / method lists to document how code is segmented.
I haven't been able to find a similar feature for Eclipse. I can't help but feel that it's right under my nose, but searches on both SO and Google haven't been enlightening... anyone know how I might do this?
Eclipse outline view supports categories (with @category in javadoc) for showing additional information on methods. See this blog post for an example of such usage.
Unfortunately grouping by categories has not yet implemented. There is an open feature request for this, but it is nearly four years old and clearly stated that it needs community effort. Personally I do not know such plugin.