Beware the IDEs of Java (Part 1)

Modern IDEs suck.

The JDEE, or Java Development Environment for Emacs, is an open-source Emacs package for programming in Java. It provides syntactic and semantic knowledge of
the Java programming language through BeanShell, and integrates with standard JDK and build tools.

If JDEE is the kitchen sink, then Emacs is the rest of the kitchen, providing a rich text editor, a file and directory browser, a version control interface, external shell interaction, a toplevel interpreter, and an infinitely configurable and extensible environment.

Requirements

• emacs
• elib (deprecated)
• CEDET
• EIEIO
• Semantic
• Speedbar
• Java Development Kit
• BeanShell

Obtaining the Packages

# pacman -S emacs cedet ecb openjdk6 beanshell

$ wget http://downloads.sourceforge.net/project/jdee/jdee/Dependencies/elib.tar.gz
$ tar xfz elib.tar.gz
$ tar xfz pub/comp/os/unix/gnu/elib/elib-1.0.tar.gz -C /path/to/elib

$ wget http://downloads.sourceforge.net/project/jdee/jdee/2.4.0.1/jdee-bin-2.4.0.1.zip
$ unzip jdee-bin-2.4.0.1.zip -d /path/to/jdee

Installing the JDEE

$ emacs ~/.emacs

(add-to-list 'load-path "/path/to/jdee")
(add-to-list 'load-path "/path/to/jdee/lisp")
(add-to-list 'load-path "/usr/share/emacs/site-lisp/cedet/common")
(load-file "/usr/share/emacs/site-lisp/cedet/common/cedet.el")
(add-to-list 'load-path "/usr/share/emacs/site-lisp/cedet/eieio")
(add-to-list 'load-path "/usr/share/emacs/site-lisp/cedet/semantic")
(add-to-list 'load-path "/usr/share/emacs/site-lisp/cedet/speedbar")
(add-to-list 'load-path "/path/to/elib")
(add-to-list 'load-path "/usr/share/emacs/site-lisp/ecb")
(load-file "/usr/share/emacs/site-lisp/ecb/ecb.el")
(require 'ecb-autoloads)

(autoload 'jde-mode "jde-mode" "JDE Mode." t)
(setq auto-mode-alist (append '(("\\.java$" . jde-mode)) auto-mode-alist))
(require 'jde)

;; optional configuration

(defun my-jde-mode-hook
  (message "Loading my-jde-mode-hook...")
  (define-key c-mode-base-map "\C-ca" 'jde-javadoc-generate-javadoc-template)
  (define-key c-mode-base-map "\C-m" 'newline-and-indent)
  (c-set-offset 'substatement-open 0)
  (c-set-offset 'statement-case-open 0)
  (c-set-offset 'case-label '+)
  (abbrev-mode t)
  (setq c-comment-continuation-starts "* "
	tab-width 4
	indent-tabs-mode nil
	temp-interactive t
	c-basic-offset 4)
  (c-add-style "my-java"
	       '("java"
		 (c-basic-offset . 4)
		 (c-hanging-braces-alist . ())))
  (c-set-style "my-java")
  (setq c-auto-newline t)
  (message "...jde-mode-hook loaded."))

(add-hook 'jde-mode-hook 'my-jde-mode-hook)

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