The project makes heavy use of OSGI components and since Eclipse is built with these components it should fit like a glove. OSGI component metadata, such as dependencies and published interfaces are defined through extensions to the standard jar-manifest file. Eclipse works well with these components and parses the manifests and updates the classpaths accordingly. All should be well but I miss IntelliJ everyday.
I am a keyboard shortcut fanatic and I like to be able to do everything without using the mouse. The first thing I did when I decided to go with Eclipse was to learn as many shortcuts as I could, print out a couple of quick reference guides and remap mappings I did not like and I am now fairly fluent in Eclipse. Eclipse has a lot of wondeful features and plugins (such as multi-clipboard) but IntelliJ excels. I can‘t say that everything is better in IntelliJ, but it is better at the little things that matter. It anticipates what I want to do and helps me do it when I want to. I behaves the same way no matter what kind of file I am editing. There are no surprises! If I think of something and try it out it usually works the first time.
To illustrate my point I‘ll give a few examples: Cut text (Control-X): Cuts the selected text into the buffer, but if no text is selected it works with the current line.
Go to class (Control-N), Go to file (Control-Shift-N) When you, while typing the search criteria, remember that it is not a class but an XML file you want to look up you just press Control-Shift-N and IDEA remembers what you typed in and starts looking for a file corresponding to what you typed.
These are just few little things that make a big difference. There are hundreds!
Eclipse is free! It is Open Source! It has loads of usable and cool plugins! I want to want to use it, but I don‘t since it is not good enough.