apache / tomcat-taglibs-standardDuplication

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

22% duplication:

15,164 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
3,351 duplicated lines

760 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with 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
impl (2%) --> spec (10%)	190	4 file pairs	details...

Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 760 duplicates...

Size	#	Folders	Files	Lines	Code
47	x 2	standard-examples/src/main/webapp/format standard-examples/src/main/webapp/format	FormatDateTime.jsp FormatDateTimeBrowserLocale.jsp	14:71 (83%) 13:70 (85%)	view
35	x 2	impl/src/main/java/org/a...standard/tag/common/sql spec/src/main/java/jakarta/servlet/jsp/jstl/sql	ResultImpl.java ResultImpl.java	95:190 (66%) 74:169 (71%)	view
28	x 2	jstlel/src/main/java/org...andard/lang/jstl/parser jstlel/src/main/java/org...andard/lang/jstl/parser	ParseException.java TokenMgrError.java	149:177 (34%) 42:70 (77%)	view
27	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlSqlTLV.java JstlXmlTLV.java	93:138 (27%) 126:171 (20%)	view
24	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlCoreTLV.java JstlXmlTLV.java	142:182 (15%) 138:178 (17%)	view
21	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlCoreTLV.java JstlSqlTLV.java	142:175 (13%) 105:138 (21%)	view
20	x 2	jstlel/src/main/java/org...bs/standard/tag/el/core jstlel/src/main/java/org...ibs/standard/tag/el/xml	ParamTag.java ParamTag.java	31:112 (86%) 32:108 (86%)	view
19	x 2	standard-examples/src/main/webapp/import standard-examples/src/main/webapp/import	index.html links.html	29:53 (22%) 1:22 (39%)	view
19	x 2	jstlel/src/main/java/org...bs/standard/tag/el/core jstlel/src/main/java/org...bs/standard/tag/el/core	ForEachTag.java ForTokensTag.java	54:107 (32%) 52:107 (27%)	view
18	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlCoreTLV.java JstlFmtTLV.java	151:175 (11%) 149:173 (17%)	view
18	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlFmtTLV.java JstlXmlTLV.java	149:173 (17%) 147:171 (13%)	view
18	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	343:360 (4%) 372:389 (4%)	view
18	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	684:701 (4%) 713:730 (4%)	view
18	x 2	standard-examples/src/main/webapp/format standard-examples/src/main/webapp/format	FormatNumber.jsp FormatNumberBrowserLocale.jsp	16:37 (66%) 16:37 (52%)	view
18	x 2	impl/src/main/java/org/apache/taglibs/standard/tlv impl/src/main/java/org/apache/taglibs/standard/tlv	JstlFmtTLV.java JstlSqlTLV.java	149:173 (17%) 114:138 (18%)	view
17	x 2	impl/src/main/java/org/a...standard/tag/common/xml impl/src/main/java/org/a...standard/tag/common/xml	IfTag.java WhenTag.java	35:58 (94%) 35:57 (94%)	view
16	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	289:304 (3%) 316:331 (3%)	view
16	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	630:645 (3%) 657:672 (3%)	view
16	x 2	impl/src/main/java/org/a...standard/tag/common/fmt impl/src/main/java/org/a...standard/tag/common/fmt	ParseDateSupport.java ParseNumberSupport.java	94:126 (14%) 91:122 (18%)	view
16	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...andard/lang/jstl/parser	ELEvaluator.java ParseException.java	471:486 (7%) 155:170 (19%)	view
16	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...andard/lang/jstl/parser	ELEvaluator.java TokenMgrError.java	471:486 (7%) 48:63 (44%)	view
16	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Coercions.java Coercions.java	409:424 (3%) 434:449 (3%)	view
15	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	FormatNumberTag.java ParseNumberTag.java	58:104 (14%) 56:102 (29%)	view
15	x 2	impl/src/main/java/org/a...standard/tag/common/fmt spec/src/main/java/jakarta/servlet/jsp/jstl/fmt	BundleSupport.java JakartaInline.java	261:312 (15%) 208:259 (11%)	view
15	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	GreaterThanOperator.java LessThanOperator.java	59:81 (48%) 59:81 (48%)	view
15	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	FormatDateTag.java ParseDateTag.java	149:175 (31%) 161:187 (25%)	view
15	x 2	standard-examples/src/main/webapp/import standard-examples/src/main/webapp/sql	index.jsp index.jsp	6:23 (22%) 6:23 (19%)	view
15	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	SetTimeZoneTag.java TimeZoneTag.java	50:103 (83%) 50:103 (83%)	view
15	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	GreaterThanOrEqualsOperator.java LessThanOrEqualsOperator.java	59:81 (48%) 59:81 (48%)	view
14	x 2	standard-examples/src/main/webapp/functions standard-examples/src/main/webapp/tlv	index.html index.html	6:22 (21%) 6:22 (27%)	view
14	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	580:593 (3%) 605:618 (3%)	view
14	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	Logger.java Logger.java	239:252 (3%) 264:277 (3%)	view
14	x 2	impl/src/main/java/org/a...bs/standard/tag/rt/core impl/src/main/java/org/a...bs/standard/tag/rt/core	IfTag.java WhenTag.java	39:83 (87%) 36:80 (87%)	view
14	x 2	impl/src/main/java/org/a...tandard/tag/common/core impl/src/main/java/org/a...tandard/tag/common/core	RedirectSupport.java UrlSupport.java	62:104 (34%) 67:109 (21%)	view
13	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	RequestEncodingTag.java TimeZoneTag.java	49:98 (68%) 50:99 (72%)	view
13	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	FormatNumberTag.java ParseDateTag.java	58:98 (12%) 58:98 (21%)	view
13	x 2	compat/src/main/java/org...tandard/tag/compat/core compat/src/main/java/org...tandard/tag/compat/core	ForEachTag.java ForTokensTag.java	46:63 (32%) 46:63 (27%)	view
13	x 2	impl/src/main/java/org/a...standard/tag/common/sql impl/src/main/java/org/a...standard/tag/common/sql	QueryTagSupport.java UpdateTagSupport.java	156:189 (9%) 116:149 (13%)	view
13	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	RequestEncodingTag.java SetTimeZoneTag.java	49:98 (68%) 50:99 (72%)	view
13	x 2	impl/src/main/java/org/a...standard/tag/common/fmt spec/src/main/java/jakarta/servlet/jsp/jstl/fmt	BundleSupport.java JakartaInline.java	176:199 (13%) 121:144 (9%)	view
13	x 2	impl/src/main/java/org/a...bs/standard/tag/rt/core impl/src/main/java/org/a...bs/standard/tag/rt/core	ForEachTag.java ForTokensTag.java	37:63 (65%) 35:61 (56%)	view
13	x 2	jstlel/src/main/java/org...ibs/standard/tag/el/fmt jstlel/src/main/java/org...ibs/standard/tag/el/fmt	ParseDateTag.java ParseNumberTag.java	58:98 (21%) 56:96 (25%)	view
13	x 2	standard-examples/src/main/webapp/functions standard-examples/src/main/webapp/xml	index.html index.html	6:21 (20%) 6:21 (19%)	view
13	x 2	standard-examples/src/main/webapp/tlv standard-examples/src/main/webapp/xml	index.html index.html	6:21 (25%) 6:21 (19%)	view
12	x 2	jstlel/src/main/java/org...andard/lang/jstl/parser jstlel/src/main/java/org...andard/lang/jstl/parser	ELParser.java ELParser.java	176:191 (1%) 303:318 (1%)	view
12	x 2	jstlel/src/main/java/org...andard/lang/jstl/parser jstlel/src/main/java/org...andard/lang/jstl/parser	ELParser.java ELParser.java	416:431 (1%) 549:564 (1%)	view
12	x 2	standard-examples/src/main/webapp/format standard-examples/src/main/webapp/xml	index.html index.html	6:20 (15%) 6:20 (18%)	view
12	x 2	standard-examples/src/main/webapp/format standard-examples/src/main/webapp/import	index.html index.html	6:20 (15%) 6:20 (13%)	view
12	x 2	jstlel/src/main/java/org...andard/lang/jstl/parser jstlel/src/main/java/org...andard/lang/jstl/parser	ELParser.java ELParser.java	226:241 (1%) 303:318 (1%)	view
12	x 2	standard-examples/src/main/webapp/format standard-examples/src/main/webapp/tlv	index.html index.html	6:20 (15%) 6:20 (23%)	view

Duplicated Units

The list of top 6 duplicated units.

See data for all 6 unit duplicates...

Size	#	Folders	Files	Lines	Code
16	x 2	impl/src/main/java/org/a...standard/tag/common/fmt spec/src/main/java/jakarta/servlet/jsp/jstl/fmt	BundleSupport.java JakartaInline.java	261:310 208:257	view
12	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	GreaterThanOrEqualsOperator.java LessThanOrEqualsOperator.java	59:72 59:72	view
12	x 2	jstlel/src/main/java/org...libs/standard/lang/jstl jstlel/src/main/java/org...libs/standard/lang/jstl	LessThanOperator.java GreaterThanOperator.java	59:72 59:72	view
11	x 2	jstlel/src/main/java/org...bs/standard/tag/el/core jstlel/src/main/java/org...bs/standard/tag/el/core	IfTag.java WhenTag.java	59:71 57:69	view
6	x 2	impl/src/main/java/org/a...standard/tag/common/xml impl/src/main/java/org/a...standard/tag/common/xml	IfTag.java WhenTag.java	45:52 44:51	view
6	x 2	impl/src/main/java/org/a...standard/tag/common/sql impl/src/main/java/org/a...standard/tag/common/sql	QueryTagSupport.java UpdateTagSupport.java	312:324 244:256	view