JetBrains / java-mission-control 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.

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Duplication Overall

12% duplication:

134,718 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
16,312 duplicated lines

13,469 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
application (<1%) --> core (1%)	801	175 file pairs	details...

Open 2D force graph... Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 13,469 duplicates...

Size	#	Folders	Files	Lines	Code
107	x 2	application/org.openjdk.jmc.flightrecorder.ui application/org.openjdk.jmc.flightrecorder.ui	defaultPages.xml defaultPages.xml	85:237 (17%) 242:394 (17%)	view
94	x 2	application/l10n/org.openjdk.jmc.feature.ja application/l10n/org.openjdk.jmc.feature.rcp.ja	feature.xml feature.xml	50:158 (67%) 53:161 (65%)	view
94	x 2	application/l10n/org.openjdk.jmc.feature.rcp.zh_CN application/l10n/org.openjdk.jmc.feature.zh_CN	feature.xml feature.xml	53:161 (65%) 50:158 (67%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	778:847 (1%) 911:980 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	778:847 (1%) 1043:1112 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	1176:1245 (1%) 1309:1378 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	645:714 (1%) 778:847 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	645:714 (1%) 911:980 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	645:714 (1%) 1043:1112 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:448 (1%) 1043:1112 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:448 (1%) 911:980 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:448 (1%) 778:847 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:448 (1%) 645:714 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:448 (1%) 512:581 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	911:980 (1%) 1043:1112 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:581 (1%) 645:714 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:581 (1%) 778:847 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:581 (1%) 911:980 (1%)	view
57	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:581 (1%) 1043:1112 (1%)	view
54	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV1.java JfrRecordingInputStreamV2.java	79:161 (53%) 84:166 (50%)	view
50	x 2	configuration/ide/eclipse/launchers configuration/ide/eclipse/launchers	launch JMC Eclipse plug-ins (JDK 8).launch JMC Eclipse plug-ins.launch	63:113 (64%) 64:114 (63%)	view
49	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFRMethodAdvisor.java JFRNextMethodAdvisor.java	54:123 (83%) 53:122 (85%)	view
45	x 2	configuration/ide/eclipse/launchers configuration/ide/eclipse/launchers	launch JMC Eclipse plug-ins.launch JMC Eclipse.launch	46:92 (56%) 46:92 (64%)	view
44	x 2	configuration/ide/eclipse/launchers configuration/ide/eclipse/launchers	launch JMC Eclipse (JDK 8).launch JMC Eclipse plug-ins (JDK 8).launch	46:91 (63%) 46:91 (56%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:560 (<1%) 1309:1357 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	778:826 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	1043:1091 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	645:693 (<1%) 1309:1357 (<1%)	view
41	x 2	configuration/ide/eclipse/launchers configuration/ide/eclipse/launchers	launch JMC Eclipse (JDK 8).launch JMC Eclipse.launch	63:104 (59%) 64:105 (58%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	645:693 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:427 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	911:959 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	778:826 (<1%) 1309:1357 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	1043:1091 (<1%) 1309:1357 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	379:427 (<1%) 1309:1357 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	512:560 (<1%) 1176:1224 (<1%)	view
41	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	911:959 (<1%) 1309:1357 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 913:960 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 780:827 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 1045:1092 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 381:428 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 647:694 (<1%)	view
40	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:205 (<1%) 514:561 (<1%)	view
39	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:204 (<1%) 1178:1224 (<1%)	view
39	x 2	application/org.openjdk.jmc.rcp.intro/content application/org.openjdk.jmc.rcp.intro/content	console_samples.xhtml console_samples_l.xhtml	14:82 (84%) 14:82 (84%)	view
39	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	mrimetadata.xml mrimetadata.xml	158:204 (<1%) 1311:1357 (<1%)	view
37	x 2	application/org.openjdk.jmc.rcp.intro/content application/org.openjdk.jmc.rcp.intro/content	jfr_samples.xhtml jfr_samples_l.xhtml	14:79 (84%) 14:81 (84%)	view
37	x 2	configuration/ide/eclipse/launchers configuration/ide/eclipse/launchers	launch JMC RCP plug-ins (JDK 8).launch JMC RCP plug-ins.launch	63:100 (56%) 63:100 (56%)	view
34	x 2	application/org.openjdk....htrecorder/ui/selection application/org.openjdk....htrecorder/ui/selection	ChartSelection.java RangedChartSelection.java	73:132 (66%) 72:134 (68%)	view
34	x 2	application/org.openjdk....njdk/jmc/joverflow/util application/org.openjdk....njdk/jmc/joverflow/util	NumberToObjectMap.java ValueWitIntIdMap.java	121:175 (35%) 163:216 (34%)	view

Duplicated Units

The list of top 34 duplicated units.

See data for all 34 unit duplicates...

Size	#	Folders	Files	Lines	Code
36	x 2	application/org.openjdk....htrecorder/ui/selection application/org.openjdk....htrecorder/ui/selection	ChartSelection.java RangedChartSelection.java	84:133 83:135	view
18	x 2	application/org.openjdk....c/console/pde/simpletab application/org.openjdk....recorder/pde/simplerule	SimpleTabTemplateSection.java SimpleRuleTemplateSection.java	159:180 136:157	view
17	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFRMethodAdvisor.java JFRNextMethodAdvisor.java	68:87 67:86	view
16	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV2.java JfrRecordingInputStreamV1.java	139:156 134:151	view
16	x 2	application/org.openjdk....c/joverflow/descriptors application/org.openjdk....c/joverflow/descriptors	FullyUtilizedArrayListDescriptor.java AbstractArrayBasedCollectionDescripto...	64:83 109:132	view
15	x 2	application/org.openjdk....flightrecorder/ui/pages application/org.openjdk....flightrecorder/ui/pages	SocketIOPage.java ExceptionsPage.java	317:333 248:264	view
13	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV2.java JfrRecordingInputStreamV1.java	102:116 97:111	view
13	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV2.java JfrRecordingInputStreamV1.java	195:210 180:195	view
11	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFRMethodAdvisor.java JFRNextMethodAdvisor.java	108:120 107:119	view
11	x 2	application/org.openjdk....njdk/jmc/joverflow/util application/org.openjdk....njdk/jmc/joverflow/util	ValueWitIntIdMap.java NumberToObjectMap.java	198:212 157:171	view
10	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV2.java JfrRecordingInputStreamV1.java	89:100 84:95	view
10	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	DefaultAttributeSubscriptionThread.java DefaultNotificationSubscriptionManage...	539:550 251:262	view
9	x 2	core/org.openjdk.jmc.fli...er/rules/tree/traversal core/org.openjdk.jmc.fli...er/rules/tree/traversal	LayerBreakdownVisitor.java LayerBreakdownGenerator.java	136:146 67:77	view
9	x 2	core/org.openjdk.jmc.fli...ightrecorder/rules/tree core/org.openjdk.jmc.fli...ightrecorder/rules/tree	TimeRangeFilter.java TimeRangeThreadFilter.java	59:70 72:83	view
9	x 2	application/org.openjdk....c/joverflow/descriptors application/org.openjdk....c/joverflow/descriptors	FullyUtilizedArrayListDescriptor.java AbstractArrayBasedCollectionDescripto...	108:118 209:219	view
8	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFREventClassGenerator.java JFRNextEventClassGenerator.java	81:90 67:76	view
8	x 2	application/org.openjdk....rg/openjdk/jmc/rjmx/ext application/org.openjdk....rg/openjdk/jmc/rjmx/ext	OsgiServicesJmxProviderProxy.java EclipseJmxProviderProxy.java	122:131 117:126	view
8	x 2	application/org.openjdk....x/services/jfr/internal application/org.openjdk....x/services/jfr/internal	JfrRecordingInputStreamV2.java JfrRecordingInputStreamV1.java	71:81 66:76	view
8	x 2	application/org.openjdk..../rjmx/triggers/internal application/org.openjdk..../rjmx/triggers/internal	ValueEvaluatorNumberMin.java ValueEvaluatorNumberMax.java	79:88 79:88	view
8	x 2	application/org.openjdk....x/subscription/internal application/org.openjdk....x/subscription/internal	DifferenceAttribute.java DivisionAttribute.java	64:73 65:74	view
7	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFRMethodAdvisor.java JFRNextMethodAdvisor.java	98:106 97:105	view
7	x 41	core/org.openjdk.jmc.fli...order/rules/jdk/latency core/org.openjdk.jmc.fli...order/rules/jdk/latency core/org.openjdk.jmc.fli...order/rules/jdk/latency core/org.openjdk.jmc.fli...er/rules/jdk/exceptions core/org.openjdk.jmc.fli...trecorder/rules/jdk/cpu core/org.openjdk.jmc.fli...trecorder/rules/jdk/cpu core/org.openjdk.jmc.fli...order/rules/jdk/general core/org.openjdk.jmc.fli...order/rules/jdk/general core/org.openjdk.jmc.fli...order/rules/jdk/general core/org.openjdk.jmc.fli...order/rules/jdk/general ...	BiasedLockingRevocationRule.java BiasedLockingRevocationPauseRule.java JavaBlockingRule.java ExceptionRule.java HighJvmCpuRule.java ManyRunningProcessesRule.java OptionsCheckRule.java ManagementAgentRule.java DMSIncidentRule.java PasswordsInSystemPropertiesRule.java ...	295:303 100:108 154:162 118:126 158:166 95:103 469:477 114:122 97:105 88:96 ...	view
7	x 3	core/org.openjdk.jmc.fli...er/rules/jdk/exceptions core/org.openjdk.jmc.fli...er/rules/jdk/exceptions core/org.openjdk.jmc.fli...mc/flightrecorder/rules	FatalErrorRule.java ErrorRule.java AbstractRule.java	33:41 177:185 66:74	view
7	x 2	application/org.openjdk....org/openjdk/jmc/ui/dial application/org.openjdk..../jmc/greychart/ui/views	DialViewer.java ChartComposite.java	74:84 106:116	view
7	x 2	application/org.openjdk....jmc/greychart/providers application/org.openjdk....jmc/greychart/providers	CompositeOptimizingProvider.java IntermediateStackingProvider.java	83:91 201:209	view
7	x 2	application/org.openjdk....rg/openjdk/jmc/rjmx/ext application/org.openjdk....rg/openjdk/jmc/rjmx/ext	OsgiServicesJmxProviderProxy.java EclipseJmxProviderProxy.java	64:72 70:78	view
7	x 2	application/org.openjdk....riggers/fields/internal application/org.openjdk....riggers/fields/internal	TimeField.java DateField.java	53:61 53:61	view
6	x 2	core/org.openjdk.jmc.age...njdk/jmc/agent/jfr/impl core/org.openjdk.jmc.age.../jmc/agent/jfrnext/impl	JFRMethodAdvisor.java JFRNextMethodAdvisor.java	53:61 52:60	view
6	x 2	core/org.openjdk.jmc.com...openjdk/jmc/common/unit core/org.openjdk.jmc.com...openjdk/jmc/common/unit	LongPostOffsetTransform.java SimpleAffineTransform.java	74:81 92:99	view
6	x 2	application/org.openjdk....penjdk/jmc/ui/uibuilder application/org.openjdk....penjdk/jmc/ui/uibuilder	StandardUIBuilder.java FormToolkitBuilder.java	108:115 71:78	view
6	x 2	application/org.openjdk....jmc/greychart/providers application/org.openjdk....jmc/greychart/providers	SampleCountingProvider.java SubsamplingProvider.java	72:79 75:82	view
6	x 2	application/org.openjdk....jmc/greychart/providers application/org.openjdk....jmc/greychart/providers	SampleCountingProvider.java SubsamplingProvider.java	82:89 85:92	view
6	x 2	application/org.openjdk....k/jmc/joverflow/support application/org.openjdk....k/jmc/joverflow/support	ClassAndOvhdComboList.java ClassAndSizeComboList.java	55:62 55:62	view
6	x 2	application/org.openjdk....njdk/jmc/joverflow/util application/org.openjdk....njdk/jmc/joverflow/util	IntArrayList.java LongArrayList.java	68:75 68:75	view