JetBrains / teamcity-log4j Duplication

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

15% duplication:

17,192 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
2,697 duplicated lines

605 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 50 longest duplicates.

See data for all 605 duplicates...

Size	#	Folders	Files	Lines	Code
496	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogMF.java LogSF.java	279:1673 (80%) 144:1538 (90%)	view
70	x 2	src/main/java/org/apache/log4j/pattern src/main/java/org/apache/log4j/spi	LogEvent.java LoggingEvent.java	281:427 (33%) 291:437 (31%)	view
54	x 2	src/main/java/org/apache/log4j/pattern src/main/java/org/apache/log4j/spi	LogEvent.java LoggingEvent.java	433:595 (26%) 455:617 (24%)	view
35	x 2	src/main/java/org/apache/log4j/pattern src/main/java/org/apache/log4j/spi	LogEvent.java LoggingEvent.java	213:269 (16%) 213:270 (15%)	view
25	x 2	contribs/VolkerMentzner contribs/VolkerMentzner	Log4jRequestHandler.java Log4jRequestHandler.java	102:130 (23%) 137:165 (23%)	view
22	x 2	contribs/ThomasFenner contribs/ThomasFenner	Log4JTest.java code_example2.java	152:267 (70%) 83:126 (51%)	view
20	x 2	src/main/java/org/apache/log4j/pattern src/main/java/org/apache/log4j/spi	LogEvent.java LoggingEvent.java	57:145 (9%) 57:145 (8%)	view
16	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogMF.java LogSF.java	234:263 (2%) 101:128 (2%)	view
15	x 2	src/main/java/org/apache/log4j/helpers src/main/java/org/apache/log4j/helpers	AbsoluteTimeDateFormat.java ISO8601DateFormat.java	97:116 (30%) 107:127 (22%)	view
15	x 2	contribs/KitchingSimon src/main/java/org/apache/log4j/helpers	DatagramStringWriter.java SyslogWriter.java	88:112 (23%) 93:118 (27%)	view
15	x 2	src/main/java/org/apache...viewer/categoryexplorer src/main/java/org/apache...viewer/categoryexplorer	CategoryExplorerModel.java CategoryExplorerModel.java	109:132 (10%) 193:216 (10%)	view
14	x 2	src/main/java/org/apache/log4j/lf5 src/main/java/org/apache/log4j/lf5/util	LF5Appender.java LogMonitorAdapter.java	229:255 (18%) 253:279 (18%)	view
14	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j/rewrite	AsyncAppender.java RewriteAppender.java	305:343 (7%) 132:170 (23%)	view
13	x 2	contribs/ThomasFenner contribs/ThomasFenner	Log4JTest.java code_example1.java	130:155 (41%) 25:50 (100%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging303.xml logging305.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging305.xml logging307.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging301.xml logging303.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging303.xml logging307.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging306.xml logging307.xml	1:32 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging301.xml logging307.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging301.xml logging306.xml	1:31 (64%) 1:32 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging301.xml logging305.xml	1:31 (64%) 1:31 (64%)	view
11	x 2	src/main/java/org/apache/log4j/xml src/main/java/org/apache/log4j/xml	DOMConfigurator.java DOMConfigurator.java	560:575 (1%) 613:628 (1%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging303.xml logging306.xml	1:31 (64%) 1:32 (64%)	view
11	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging305.xml logging306.xml	1:31 (64%) 1:32 (64%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging205.xml logging305.xml	23:37 (66%) 27:41 (58%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging223.xml logging226.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	contribs/CekiGulcu contribs/SvenReimers/gui	AppenderTable.java JTableAppender.java	190:228 (10%) 186:211 (10%)	view
10	x 2	src/main/java/org/apache/log4j/helpers src/main/java/org/apache/log4j/helpers	OptionConverter.java OptionConverter.java	465:475 (4%) 513:523 (4%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging204.xml logging304.xml	23:37 (66%) 27:41 (58%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging207.xml logging307.xml	23:37 (66%) 27:41 (58%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging203.xml logging303.xml	23:37 (66%) 27:41 (58%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging225.xml logging227.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging225.xml logging226.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging201.xml logging301.xml	23:37 (66%) 27:41 (58%)	view
10	x 2	src/main/java/org/apache/log4j/rewrite src/main/java/org/apache/log4j/rewrite	MapRewritePolicy.java ReflectionRewritePolicy.java	69:78 (35%) 70:79 (27%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging206.xml logging306.xml	23:37 (66%) 28:42 (58%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging223.xml logging225.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging223.xml logging227.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogMF.java LogMF.java	158:167 (1%) 204:213 (1%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging221.xml logging225.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging226.xml logging227.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging221.xml logging223.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging221.xml logging227.xml	1:28 (62%) 1:28 (62%)	view
10	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging221.xml logging226.xml	1:28 (62%) 1:28 (62%)	view
9	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging201.xml logging206.xml	1:27 (60%) 1:27 (60%)	view
9	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging304.xml logging306.xml	1:29 (52%) 1:30 (52%)	view
9	x 2	src/performance/java/org...e/log4j/performance/xml src/performance/java/org...e/log4j/performance/xml	logging205.xml logging207.xml	1:27 (60%) 1:27 (60%)	view
9	x 2	contribs/VolkerMentzner contribs/VolkerMentzner	Log4jRequestHandler.java UserDialogRequestHandler.java	56:67 (8%) 64:74 (14%)	view
9	x 2	src/main/java/org/apache/log4j/xml src/main/java/org/apache/log4j/xml	DOMConfigurator.java DOMConfigurator.java	324:333 (1%) 365:374 (1%)	view

Duplicated Units

The list of top 50 duplicated units.

See data for all 51 unit duplicates...

Size	#	Folders	Files	Lines	Code
16	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	112:129 247:264	view
14	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	359:375 349:365	view
13	x 2	contribs/ThomasFenner contribs/ThomasFenner	code_example1.java Log4JTest.java	30:51 135:156	view
12	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1527:1540 1662:1675	view
10	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1502:1513 1637:1648	view
9	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1287:1297 1422:1432	view
9	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1479:1489 1614:1624	view
9	x 3	contribs/ThomasFenner contribs/ThomasFenner contribs/ThomasFenner	JDBCAppender.java code_example2.java Log4JTest.java	583:594 104:115 245:256	view
9	x 2	contribs/SvenReimers/gui contribs/SvenReimers/gui	TextPaneAppender.java JListView.java	85:95 234:244	view
8	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	328:339 318:329	view
8	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	522:531 500:509	view
8	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	599:608 577:586	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1030:1039 1165:1174	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1247:1256 1382:1391	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1267:1276 1402:1411	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1307:1316 1442:1451	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1326:1335 1461:1470	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1345:1354 1480:1489	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1364:1373 1499:1508	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1383:1392 1518:1527	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1402:1411 1537:1546	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1421:1430 1556:1565	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1439:1448 1574:1583	view
8	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1459:1468 1594:1603	view
8	x 2	contribs/SvenReimers/gui contribs/JamesHouse	TextPaneAppender.java LogTextPanel.java	192:201 106:115	view
7	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	346:356 336:346	view
7	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	471:494 449:472	view
7	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	497:510 475:488	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1012:1020 1147:1155	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1048:1056 1183:1191	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1065:1073 1200:1208	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1083:1091 1218:1226	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1101:1109 1236:1244	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1118:1126 1253:1261	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1135:1143 1270:1278	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1153:1161 1288:1296	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1171:1179 1306:1314	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1189:1197 1324:1332	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1208:1216 1343:1351	view
7	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	1227:1235 1362:1370	view
6	x 2	src/main/java/org/apache/log4j/spi src/main/java/org/apache/log4j/pattern	LoggingEvent.java LogEvent.java	543:550 521:528	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	251:258 386:393	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	267:274 402:409	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	283:290 418:425	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	299:306 434:441	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	315:322 450:457	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	331:338 466:473	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	499:506 634:641	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	665:672 800:807	view
6	x 2	src/main/java/org/apache/log4j src/main/java/org/apache/log4j	LogSF.java LogMF.java	830:837 965:972	view