• 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 93 files with 17,796 lines of code.
• 4 very long files (6,054 lines of code)
• 6 long files (4,083 lines of code)
• 12 medium size files (3,646 lines of codeclsfd_ftr_w_mp_ins)
• 13 small files (1,835 lines of code)
• 58 very small files (2,178 lines of code)

There are 34 files with lines longer than 120 characters. In total, there are 344 long lines.

File	# lines	# units	# long lines
release-notes-1.1.xml in src/site/xdoc	138	-	81
formatter.xml in src/conf/eclipse	354	-	58
changes.xml in src/changes	1420	-	35
release-notes-1.2.xml in src/site/xdoc	74	-	30
PStmtKey.java in src/main/java/org/apache/commons/dbcp2	273	37	30
download_dbcp.xml in src/site/xdoc	126	-	23
BasicDataSourceFactory.java in src/main/java/org/apache/commons/dbcp2	301	14	17
issue-tracking.xml in src/site/xdoc	54	-	8
PooledConnectionImpl.java in src/main/java/org/apache/commons/dbcp2/cpdsadapter	356	39	7
CPDSConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/datasources	260	23	5
KeyedCPDSConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/datasources	210	18	4
DelegatingResultSet.java in src/main/java/org/apache/commons/dbcp2	1754	199	4
BasicDataSource.java in src/main/java/org/apache/commons/dbcp2	923	162	4
PoolingConnection.java in src/main/java/org/apache/commons/dbcp2	212	35	4
PoolableConnectionFactory.java in src/main/java/org/apache/commons/dbcp2	359	61	4
mail-lists.xml in src/site/xdoc	160	-	3
SharedPoolDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	123	13	3
configuration.xml in src/site/xdoc	466	-	2
site.xml in src/site	34	-	2
InstanceKeyDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	574	84	2
DataSourceXAConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/managed	99	15	2
TransactionRegistry.java in src/main/java/org/apache/commons/dbcp2/managed	65	7	2
DelegatingConnection.java in src/main/java/org/apache/commons/dbcp2	778	78	2
Utils.java in src/main/java/org/apache/commons/dbcp2	108	15	2
index.xml in src/site/xdoc	70	-	1
PerUserPoolDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	595	84	1
BasicManagedDataSource.java in src/main/java/org/apache/commons/dbcp2/managed	120	12	1
TransactionContext.java in src/main/java/org/apache/commons/dbcp2/managed	100	9	1
PoolableManagedConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/managed	63	3	1
Jdbc41Bridge.java in src/main/java/org/apache/commons/dbcp2	250	12	1
DelegatingPreparedStatement.java in src/main/java/org/apache/commons/dbcp2	596	61	1
PoolableConnection.java in src/main/java/org/apache/commons/dbcp2	196	16	1
DriverAdapterCPDS.java in src/main/java/org/apache/commons/dbcp2/cpdsadapter	391	49	1
findbugs-exclude-filter.xml in src/conf	51	-	1