There must be a good book/PDF/HTML file that describes the essentials & good practices of annotations in Java. I sort of know what they are from other good Java books, but I'm looking for something that would teach me most of what I would need to know to make good use of them. (preferably in PDF/HTML so I can print it out & read at my leisure, book ok also but those go out of date so fast...)There must be a good book/PDF/HTML file that de