• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 37 files with 4,161 lines of code.
• 0 very long files (0 lines of code)
• 1 long files (892 lines of code)
• 4 medium size files (1,402 lines of codeclsfd_ftr_w_mp_ins)
• 6 small files (826 lines of code)
• 26 very small files (1,041 lines of code)

There are 8 files with lines longer than 120 characters. In total, there are 30 long lines.

File	# lines	# units	# long lines
download_email.xml in src/site/xdoc	96	-	11
issue-tracking.xml in src/site/xdoc	54	-	8
changes.xml in src/changes	492	-	3
mail-lists.xml in src/site/xdoc	150	-	3
spotbugs-exclude-filter.xml in conf	23	-	2
index.xml in src/site/xdoc	112	-	1
release_1_1.xml in src/site/xdoc	137	-	1
Email.java in src/main/java/org/apache/commons/mail	892	80	1