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Make paths of directories and jar files configurable.

Part of this patch was taken from Debian and heavily modified, see:
http://patch-tracking.debian.net/patch/series/view/jde/2.3.5.1-5/0005-Set-the-location-of-needed-files-for-beanshell.el-an.patch

--- jde-orig/lisp/beanshell.el
+++ jde/lisp/beanshell.el
@@ -891,14 +891,21 @@
 
 (add-to-list 'auto-mode-alist '("\\.bsh\\'" . bsh-script-mode))
 
+(defcustom bsh-html-directory
+  (let ((jde-dir (jde-find-jde-doc-directory)))
+    (if jde-dir
+	(expand-file-name "doc/html/bsh-ug" jde-dir)))
+  "Directory of the beanshell HTML documentation."
+  :group 'bsh
+  :type 'directory)
+
 ;;;###autoload
 (defun bsh-script-help ()
   "Display BeanShell User's Guide."
   (interactive)
-  (let* ((jde-dir (jde-find-jde-doc-directory))
-	 (bsh-help
-	  (if jde-dir
-	      (expand-file-name "doc/html/bsh-ug/bsh-ug.html" jde-dir))))
+  (let ((bsh-help
+	 (if bsh-html-directory
+	     (expand-file-name "bsh-ug.html" bsh-html-directory))))
     (if (and
 	 bsh-help
 	 (file-exists-p bsh-help))
--- jde-orig/lisp/jde-bsh.el
+++ jde/lisp/jde-bsh.el
@@ -91,22 +91,59 @@
 		   "The single instance of the JDEE's BeanShell."))
   "Class of JDEE BeanShells. There is only one per Emacs session.")
 
+(defcustom jde-java-directory
+  (expand-file-name "java" (jde-find-jde-data-directory))
+  "Top-level directory of JDE Java files."
+  :group 'jde-project
+  :type 'directory)
+
+(defcustom jde-bsh-commands-directory
+  (expand-file-name "bsh-commands" jde-java-directory)
+  "Directory of beanshell commands."
+  :group 'bsh
+  :type 'directory)
+
+(defcustom jde-classes-directory
+  (expand-file-name "classes" jde-java-directory)
+  "Directory of JDE classes."
+  :group 'jde-project
+  :type 'directory)
+
+(defcustom jde-checkstyle-jar-file
+  (expand-file-name "lib/checkstyle-all.jar" jde-java-directory)
+  "Path of the checkstyle-jar file."
+  :group 'jde-project
+  :type 'file)
+
+(defcustom jde-regexp-jar-file
+  (expand-file-name "lib/jakarta-regexp.jar" jde-java-directory)
+  "Path of the regexp-jar file."
+  :group 'jde-project
+  :type 'file)
+
+(defcustom jde-jde-jar-file
+  (expand-file-name "lib/jde.jar" jde-java-directory)
+  "Path of the jde-jar file."
+  :group 'jde-project
+  :type 'file)
+
+(defcustom jde-bsh-jar-file
+  (expand-file-name "lib/bsh.jar" jde-java-directory)
+  "Path of the bsh-jar file."
+  :group 'jde-project
+  :type 'file)
+
 (defmethod initialize-instance ((this jde-bsh) &rest fields)
   "Constructor for the JDEE BeanShell instance."
   (call-next-method)
-  (let* ((jde-java-directory
-	  (concat
-	   (jde-find-jde-data-directory)
-	   "java/")))
-
-    (oset this bsh-cmd-dir (expand-file-name "bsh-commands" jde-java-directory))
-    (oset this checkstyle-jar  (expand-file-name "lib/checkstyle-all.jar" jde-java-directory))
-    (oset this regexp-jar (expand-file-name "lib/jakarta-regexp.jar" jde-java-directory))
-    (oset this jde-classes-dir (expand-file-name "classes" jde-java-directory))
-    (oset this jde-jar (expand-file-name "lib/jde.jar" jde-java-directory))
-    (oset this jar  (expand-file-name "lib/bsh.jar" jde-java-directory))
-    (oset this separate-error-buffer jde-bsh-separate-buffer)
-    (oset-default 'jde-bsh the-bsh this)))
+  (oset this bsh-cmd-dir jde-bsh-commands-directory)
+  (oset this checkstyle-jar jde-checkstyle-jar-file)
+  (oset this regexp-jar jde-regexp-jar-file)
+  (oset this jde-classes-dir jde-classes-directory)
+  (oset this jde-jar jde-jde-jar-file)
+  (oset this jar jde-bsh-jar-file)
+  (oset this separate-error-buffer jde-bsh-separate-buffer)
+  (oset-default 'jde-bsh the-bsh this))
 
 (defmethod bsh-create-buffer ((this jde-bsh))
   "Creates the JDEE's beanshell buffer."
@@ -150,6 +187,7 @@
 		       (jde-get-tools-jar)
 		       (if ant-home (expand-file-name "lib" ant-home)))
 		      (jde-pi-get-bsh-classpath)
+		      bsh-classpath
 		      (jde-expand-classpath (jde-get-global-classpath)))))))
 
 ;; Create the BeanShell wrapper object.
--- jde-orig/lisp/jde-bug.el
+++ jde/lisp/jde-bug.el
@@ -2438,10 +2438,10 @@
 (defun jde-bug-help ()
   "Displays the JDEbug User's Guide."
   (interactive)
-  (let* ((jde-dir (jde-find-jde-doc-directory))
-	 (jdebug-help
-	  (if jde-dir
-	      (expand-file-name "doc/html/jdebug-ug/jdebug-ug.html" jde-dir))))
+  (let ((jdebug-help
+	 (if jde-html-directory
+	     (expand-file-name "jdebug-ug/jdebug-ug.html"
+			       jde-html-directory))))
     (if (and
 	 jdebug-help
 	 (file-exists-p jdebug-help))
--- jde-orig/lisp/jde-checkstyle.el
+++ jde/lisp/jde-checkstyle.el
@@ -322,10 +322,6 @@
 	 (vm-path (oref (jde-run-get-vm) :path))
 	 (source-file
 	  (concat (file-name-nondirectory buffer-file-name)))
-	 (jde-java-directory
-	  (concat
-	   (jde-find-jde-data-directory)
-	   "java/"))
 	 (args (append
 		(unless jde-checkstyle-expanded-properties-file
 		  (jde-checkstyle-get-property-args this))
@@ -333,13 +329,13 @@
 		(list "-classpath"
 		      (if jde-checkstyle-classpath
 			  (jde-build-classpath jde-checkstyle-classpath)
-			(jde-normalize-path
-			 (expand-file-name "lib/checkstyle-all.jar" jde-java-directory))))
+			(jde-normalize-path jde-checkstyle-jar-file)))
 		(list jde-checkstyle-class)
 		(list "-c"
 		      (if jde-checkstyle-style
 			  (jde-normalize-path jde-checkstyle-style)
-			(concat (jde-find-jde-data-directory) "java/lib/sun_checks.xml")))
+			(expand-file-name "lib/sun_checks.xml"
+					  jde-java-directory)))
 		(if jde-checkstyle-expanded-properties-file
 		    (list "-p" (jde-normalize-path jde-checkstyle-expanded-properties-file)))
 		(if jde-checkstyle-module-package-names-file
--- jde-orig/lisp/jde-dbs.el
+++ jde/lisp/jde-dbs.el
@@ -907,9 +907,6 @@
 		  (jde-normalize-path 'jde-run-working-directory)
 		source-directory))
 	     (vm (oref (jde-run-get-vm) :path))
-	     (jde-java-directory
-	      (expand-file-name "java"
-	       (jde-find-jde-data-directory)))
 	     (vm-args
 		(let (args)
 		  (setq args
--- jde-orig/lisp/jde.el
+++ jde/lisp/jde.el
@@ -1722,14 +1722,19 @@
 jde.el."
   (jde-find-jde-data-directory))
 
+(defcustom jde-html-directory
+  (expand-file-name "doc/html" (jde-find-jde-doc-directory))
+  "Directory of the JDE HTML documentation."
+  :group 'jde-project
+  :type 'directory)
+
 ;;;###autoload
 (defun jde-show-help ()
   "Displays the JDE User's Guide in a browser."
   (interactive)
-  (let* ((jde-dir (jde-find-jde-doc-directory))
-	 (jde-help
-	  (if jde-dir
-	      (expand-file-name "doc/html/jde-ug/jde-ug.html" jde-dir))))
+  (let ((jde-help
+	 (if jde-html-directory
+	     (expand-file-name "jde-ug/jde-ug.html" jde-html-directory))))
     (if (and
 	 jde-help
 	 (file-exists-p jde-help))
--- jde-orig/lisp/jde-jdb.el
+++ jde/lisp/jde-jdb.el
@@ -1459,10 +1459,10 @@
 
 (defun jde-jdb-help ()
   (interactive)
-  (let* ((jde-dir (jde-find-jde-doc-directory))
-	 (jdb-ug-path
-	  (if jde-dir
-	      (expand-file-name "doc/html/jdb-ug/jdb-ug-frame.html" jde-dir))))
+  (let ((jdb-ug-path
+	 (if jde-html-directory
+	     (expand-file-name "jdb-ug/jdb-ug-frame.html"
+			       jde-html-directory))))
     (if (and
 	 jdb-ug-path
 	 (file-exists-p jdb-ug-path))