When I use eclipse and see my name in the javadocs as the author, I also find the spellchecker marking my name as it does not understand that it is a proper name. Thus, I get th
The user dictionary is just a plain text file with one word per line.
You do not have to create this file, just put the path to where you want to store the file in the 'User defined dictionary' configuration that Eclipse shows you and it will create the file.