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Intro

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

Learn more...

Duplication Overall

18% duplication:

28,118 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
5,321 duplicated lines

735 duplicates

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
src/main/java/org/mariadb/jdbc (<1%) --> src/main/java/org/mariadb/jdbc/internal/com (<1%)	98	6 file pairs	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 20 longest duplicates.

See data for all 735 duplicates...

Size	#	Folders	Files	Lines	Code
256	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	ScalarOps.java ScalarOps.java	95:405 (34%) 625:930 (34%)	view
137	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	CallableFunctionStatement.java CallableProcedureStatement.java	661:879 (30%) 684:902 (29%)	view
98	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	Ed25519FieldElement.java Ed25519FieldElement.java	461:564 (15%) 646:743 (15%)	view
62	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	BinaryRowProtocol.java TextRowProtocol.java	1197:1263 (4%) 895:961 (7%)	view
59	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	Ed25519FieldElement.java Ed25519FieldElement.java	339:436 (9%) 555:621 (9%)	view
49	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	Ed25519FieldElement.java Ed25519FieldElement.java	566:621 (7%) 756:811 (7%)	view
49	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	CallableFunctionStatement.java CallableProcedureStatement.java	537:628 (10%) 560:651 (10%)	view
49	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	Ed25519FieldElement.java Ed25519FieldElement.java	357:436 (7%) 756:811 (7%)	view
42	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	BinaryRowProtocol.java BinaryRowProtocol.java	435:479 (3%) 543:587 (3%)	view
41	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	ScalarOps.java ScalarOps.java	804:848 (5%) 851:895 (5%)	view
41	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	ScalarOps.java ScalarOps.java	277:321 (5%) 324:369 (5%)	view
41	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	ScalarOps.java ScalarOps.java	277:321 (5%) 851:895 (5%)	view
41	x 2	src/main/java/org/mariad...on/ed25519/math/ed25519 src/main/java/org/mariad...on/ed25519/math/ed25519	ScalarOps.java ScalarOps.java	324:369 (5%) 804:848 (5%)	view
31	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	BinaryRowProtocol.java TextRowProtocol.java	1737:1787 (2%) 1174:1224 (3%)	view
30	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	TextRowProtocol.java TextRowProtocol.java	646:683 (3%) 785:822 (3%)	view
29	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	BinaryRowProtocol.java TextRowProtocol.java	1830:1874 (2%) 1234:1278 (3%)	view
28	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	TextRowProtocol.java TextRowProtocol.java	516:554 (3%) 649:687 (3%)	view
27	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	MariaDbDatabaseMetaData.java MariaDbDatabaseMetaData.java	898:924 (1%) 945:971 (1%)	view
27	x 2	src/main/java/org/mariad...d/resultset/rowprotocol src/main/java/org/mariad...d/resultset/rowprotocol	TextRowProtocol.java TextRowProtocol.java	516:550 (3%) 788:822 (3%)	view
27	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	BasePrepareStatement.java BasePrepareStatement.java	903:929 (4%) 1122:1148 (4%)	view

Duplicated Units

The list of top 18 duplicated units.

See data for all 18 unit duplicates...

Size	#	Folders	Files	Lines	Code
16	x 2	src/main/java/org/mariad...c/internal/com/read/dao src/main/java/org/mariad...c/internal/com/read/dao	CmdInformationBatch.java CmdInformationBatch.java	218:234 244:261	view
15	x 2	src/main/java/org/mariad...rnal/com/read/resultset src/main/java/org/mariad...d/resultset/rowprotocol	SelectResultSet.java RowProtocol.java	2004:2019 277:292	view
11	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	MariaDbConnection.java MariaDbConnection.java	716:727 734:745	view
11	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	MariaDbDataSource.java MariaDbPoolDataSource.java	394:405 401:412	view
10	x 5	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc src/main/java/org/mariad...rnal/com/read/resultset	MariaDbConnection.java MariaDbParameterMetaData.java MariaDbResultSetMetaData.java SimpleParameterMetaData.java SelectResultSet.java	1509:1519 153:163 378:388 172:182 1982:1992	view
10	x 2	src/main/java/org/mariad...rnal/com/read/resultset src/main/java/org/mariad...d/resultset/rowprotocol	SelectResultSet.java RowProtocol.java	956:966 197:207	view
9	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	SimpleParameterMetaData.java SimpleParameterMetaData.java	98:107 110:119	view
9	x 2	src/main/java/org/mariad...rnal/com/read/resultset src/main/java/org/mariad...rnal/com/read/resultset	UpdatableResultSet.java UpdatableResultSet.java	520:529 544:553	view
9	x 2	src/main/java/org/mariadb/jdbc/internal/osgi src/main/java/org/mariadb/jdbc/internal/osgi	MariaDbDataSourceFactory.java MariaDbDataSourceFactory.java	67:76 92:101	view
8	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	BasePrepareStatement.java BasePrepareStatement.java	169:177 196:204	view
8	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	BasePrepareStatement.java BasePrepareStatement.java	1173:1181 1232:1240	view
8	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	BasePrepareStatement.java BasePrepareStatement.java	1205:1213 1288:1296	view
8	x 2	src/main/java/org/mariad...rnal/com/read/resultset src/main/java/org/mariad...rnal/com/read/resultset	SelectResultSet.java SelectResultSet.java	935:943 1136:1144	view
7	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	MariaDbStatement.java MariaDbStatement.java	862:869 892:899	view
6	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	CallableFunctionStatement.java CallableProcedureStatement.java	537:543 560:566	view
6	x 2	src/main/java/org/mariadb/jdbc src/main/java/org/mariadb/jdbc	MariaDbDataSource.java MariaDbPoolDataSource.java	243:249 206:212	view
6	x 2	src/main/java/org/mariad...rnal/com/read/resultset src/main/java/org/mariad...rnal/com/read/resultset	SelectResultSet.java SelectResultSet.java	1372:1378 1426:1432	view
6	x 2	src/main/java/org/mariadb/jdbc/internal/protocol src/main/java/org/mariadb/jdbc/internal/protocol	AuroraProtocol.java MastersSlavesProtocol.java	73:79 71:77	view