A better solution would be to create a separate library or program to provide the same features to text editors without running all the unnecessary Eclipse baggage. It does not even have to be created from scratch, because one could simply figure out how to cut out the necessary parts of the Eclipse Java parser/refactorer and create a wrapper to run it without Eclipse. I'm sure lots of Vim/Emacs/Textmate/etc users would donate money to have such a lightweight support library, so they can use their favorite editor for Java programming too without having to miss intelligent lanugage support features or having to run some behemoth IDE in the background. These donations could enable an open source developer to work on this common library (to be used by all editors) for a while whithout having to take up other jobs. Joey Hess' git annex (http://www.kickstarter.com/projects/joeyh/git-annex-assistant-like-dropbox-but-with-your-own) is a good example for this user funded open source development.
Would you donate money to a project like this? I would. Voice your opinion in the comments, so that people who have the skills to create such an editor-independent completion/refactoring helper for the popular text editors see there is interest and maybe get motivated to start a Kickstarter project for this.