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

29% duplication:

57,344 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
16,871 duplicated lines

6,515 duplicates

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 20 longest duplicates.

See data for all 6,515 duplicates...

Size	#	Folders	Files	Lines	Code
151	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po pl.po	1328:1513 (10%) 1357:1542 (10%)	view
151	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po nl.po	1328:1513 (10%) 1336:1521 (10%)	view
151	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po nl.po pl.po	1336:1521 (10%) 1357:1542 (10%)	view
94	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po nl.po	325:442 (6%) 323:440 (6%)	view
93	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po zh_CN.po zh_TW.po	1336:1451 (6%) 1336:1451 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po zh_CN.po	1328:1441 (6%) 1336:1449 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po nl.po zh_CN.po	1336:1449 (6%) 1336:1449 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po pl.po zh_CN.po	1357:1470 (6%) 1336:1449 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po nl.po zh_TW.po	1336:1449 (6%) 1336:1449 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po pl.po zh_TW.po	1357:1470 (6%) 1336:1449 (6%)	view
91	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po zh_TW.po	1328:1441 (6%) 1336:1449 (6%)	view
87	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po es.po nl.po	1605:1708 (6%) 1615:1718 (6%)	view
87	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po cs.po nl.po	1611:1714 (6%) 1615:1718 (6%)	view
87	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po cs.po es.po	1611:1714 (6%) 1605:1708 (6%)	view
80	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po zh_CN.po zh_TW.po	1621:1717 (5%) 1621:1717 (5%)	view
79	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po pl.po zh_TW.po	1644:1738 (5%) 1623:1717 (5%)	view
79	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po cs.po zh_CN.po	1620:1714 (5%) 1623:1717 (5%)	view
79	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po cs.po zh_TW.po	1620:1714 (5%) 1623:1717 (5%)	view
79	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po cs.po pl.po	1620:1714 (5%) 1644:1738 (5%)	view
79	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	po pl.po zh_CN.po	1644:1738 (5%) 1623:1717 (5%)	view

Duplicated Units

The list of top 18 duplicated units.

See data for all 18 unit duplicates...

Size	#	Folders	Files	Lines	Code
229	x 2	src/main/java/com/amazon/redshift/translation src/main/java/com/amazon/redshift/translation	messages_zh_CN.java messages_zh_TW.java	5:234 5:234	view
13	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	RedshiftResultSet.java RedshiftResultSet.java	2889:2909 2911:2931	view
11	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	PrimitiveArraySupport.java PrimitiveArraySupport.java	236:248 301:313	view
10	x 2	src/main/java/com/amazon/redshift/util src/main/java/com/amazon/redshift/util	RedshiftVarbyte.java RedshiftGeometry.java	19:30 142:153	view
10	x 2	src/main/java/com/amazon/redshift/core src/main/java/com/amazon/redshift/core	Parser.java Parser.java	665:676 767:778	view
10	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	RedshiftResultSet.java RedshiftPreparedStatement.java	4252:4262 1739:1749	view
9	x 2	src/main/java/com/amazon/redshift/plugin src/main/java/com/amazon/redshift/plugin	SamlCredentialsProvider.java SamlCredentialsProvider.java	783:793 795:805	view
9	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	PrimitiveArraySupport.java PrimitiveArraySupport.java	52:61 113:122	view
8	x 2	src/main/java/com/amazon/redshift/plugin src/main/java/com/amazon/redshift/plugin	JwtCredentialsProvider.java SamlCredentialsProvider.java	94:102 123:131	view
8	x 2	src/main/java/com/amazon/redshift/util src/main/java/com/amazon/redshift/util	RedshiftVarbyte.java RedshiftBytea.java	44:57 47:60	view
8	x 2	src/main/java/com/amazon/redshift/core src/main/java/com/amazon/redshift/core	Parser.java Parser.java	705:714 847:856	view
7	x 2	src/main/java/com/amazon/redshift/plugin src/main/java/com/amazon/redshift/plugin	JwtCredentialsProvider.java SamlCredentialsProvider.java	105:113 134:142	view
6	x 2	src/main/java/com/amazon/redshift/largeobject src/main/java/com/amazon/redshift/largeobject	LargeObject.java LargeObject.java	253:259 268:274	view
6	x 2	src/main/java/com/amazon/redshift/geometric src/main/java/com/amazon/redshift/geometric	RedshiftPolygon.java RedshiftPath.java	85:92 109:116	view
6	x 2	src/main/java/com/amazon/redshift/core src/main/java/com/amazon/redshift/core	BaseQueryKey.java CallableQueryKey.java	28:34 20:26	view
6	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	EscapedFunctions2.java EscapedFunctions2.java	210:216 354:360	view
6	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	EscapedFunctions.java EscapedFunctions.java	412:418 427:433	view
6	x 2	src/main/java/com/amazon/redshift/jdbc src/main/java/com/amazon/redshift/jdbc	EscapedFunctions.java EscapedFunctions.java	442:448 468:474	view