• 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 92 files with 15,462 lines of code.
• 2 very long files (2,945 lines of code)
• 6 long files (4,315 lines of code)
• 12 medium size files (3,975 lines of codeclsfd_ftr_w_mp_ins)
• 14 small files (1,941 lines of code)
• 58 very small files (2,286 lines of code)

There are 37 files with lines longer than 120 characters. In total, there are 356 long lines.

File	# lines	# units	# long lines
release-notes-1.1.xml in src/site/xdoc	128	-	81
formatter.xml in src/conf/eclipse	354	-	58
PStmtKey.java in src/main/java/org/apache/commons/dbcp2	273	37	30
release-notes-1.2.xml in src/site/xdoc	66	-	30
DelegatingDatabaseMetaData.java in src/main/java/org/apache/commons/dbcp2	795	188	25
download_dbcp.xml in src/site/xdoc	126	-	25
BasicDataSourceFactory.java in src/main/java/org/apache/commons/dbcp2	309	15	19
DriverAdapterCPDS.java in src/main/java/org/apache/commons/dbcp2/cpdsadapter	400	50	9
PooledConnectionImpl.java in src/main/java/org/apache/commons/dbcp2/cpdsadapter	366	39	8
issue-tracking.xml in src/site/xdoc	54	-	8
KeyedCPDSConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/datasources	131	13	6
PoolingConnection.java in src/main/java/org/apache/commons/dbcp2	233	35	5
PoolableConnectionFactory.java in src/main/java/org/apache/commons/dbcp2	368	63	4
DelegatingResultSet.java in src/main/java/org/apache/commons/dbcp2	1754	199	4
PoolableManagedConnection.java in src/main/java/org/apache/commons/dbcp2/managed	32	5	4
BasicDataSource.java in src/main/java/org/apache/commons/dbcp2	955	166	4
SharedPoolDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	127	14	4
PerUserPoolDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	492	87	4
Utils.java in src/main/java/org/apache/commons/dbcp2	120	17	3
TransactionRegistry.java in src/main/java/org/apache/commons/dbcp2/managed	65	7	2
DataSourceXAConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/managed	99	15	2
BasicManagedDataSource.java in src/main/java/org/apache/commons/dbcp2/managed	120	13	2
DelegatingConnection.java in src/main/java/org/apache/commons/dbcp2	778	78	2
InstanceKeyDataSource.java in src/main/java/org/apache/commons/dbcp2/datasources	574	84	2
site.xml in src/site	35	-	2
configuration.xml in src/site/xdoc	476	-	2
spotbugs-exclude-filter.xml in src/conf	54	-	1
DelegatingPreparedStatement.java in src/main/java/org/apache/commons/dbcp2	595	61	1
PoolingDataSource.java in src/main/java/org/apache/commons/dbcp2	128	18	1
Constants.java in src/main/java/org/apache/commons/dbcp2	13	1	1
LocalXAConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/managed	167	18	1
PoolableManagedConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/managed	63	3	1
TransactionContext.java in src/main/java/org/apache/commons/dbcp2/managed	100	9	1
Jdbc41Bridge.java in src/main/java/org/apache/commons/dbcp2	253	13	1
AbstractConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/datasources	89	5	1
CPDSConnectionFactory.java in src/main/java/org/apache/commons/dbcp2/datasources	162	15	1
index.xml in src/site/xdoc	72	-	1