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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

4% duplication:

51,273 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
2,385 duplicated lines

221 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
flutter-idea/src (<1%) --> flutter-studio/src (3%)	80	3 file pairs	details...
flutter-idea (37%) --> flutter-studio (64%)	71	1 file pair	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 20 longest duplicates.

See data for all 221 duplicates...

Size	#	Folders	Files	Lines	Code
49	x 2	flutter-idea/testSrc/unit/io/flutter/console flutter-idea/testSrc/unit/io/flutter/console	FlutterConsoleFilterTest.java FlutterConsoleFilterTest.java	69:117 (36%) 119:167 (36%)	view
37	x 2	flutter-idea/testSrc/unit/io/flutter/perf flutter-idea/testSrc/unit/io/flutter/perf	FlutterWidgetPerfTest.java FlutterWidgetPerfTest.java	500:554 (9%) 575:629 (9%)	view
22	x 2	flutter-idea flutter-studio	build.gradle.kts build.gradle.kts	23:54 (23%) 14:45 (40%)	view
18	x 2	flutter-idea/src/io/flutter/editor flutter-studio/src/io/flutter/editor	IntellijColorPickerProvider.java AndroidStudioColorPickerProvider.java	41:59 (36%) 43:61 (27%)	view
17	x 2	flutter-idea/src/io/flutter/utils/math flutter-idea/src/io/flutter/utils/math	Matrix4.java Matrix4.java	1803:1819 (1%) 1954:1970 (1%)	view
16	x 2	flutter-idea/src/io/flutter/utils/math flutter-idea/src/io/flutter/utils/math	Matrix4.java Matrix4.java	28:43 (<1%) 457:472 (<1%)	view
16	x 2	flutter-idea/src/io/flutter/editor flutter-idea/src/io/flutter/editor	FlutterColors.java FlutterCupertinoColors.java	105:134 (24%) 83:112 (30%)	view
14	x 2	flutter-studio/resources...etMaps/FontAwesomeIcons resources/iconAssetMaps/FontAwesomeIcons	asset_map.yaml asset_map.yaml	1:14 (100%) 1:14 (100%)	view
14	x 2	flutter-idea/resources/i...etMaps/FontAwesomeIcons flutter-studio/resources...etMaps/FontAwesomeIcons	asset_map.yaml asset_map.yaml	1:14 (100%) 1:14 (100%)	view
14	x 2	flutter-idea/testSrc/int...n/io/flutter/utils/math flutter-idea/testSrc/int...n/io/flutter/utils/math	Matrix4Test.java Matrix4Test.java	222:236 (3%) 254:268 (3%)	view
14	x 2	flutter-idea/testSrc/int...n/io/flutter/utils/math flutter-idea/testSrc/int...n/io/flutter/utils/math	Matrix4Test.java Matrix4Test.java	254:268 (3%) 286:300 (3%)	view
14	x 2	flutter-idea/resources/i...etMaps/FontAwesomeIcons resources/iconAssetMaps/FontAwesomeIcons	asset_map.yaml asset_map.yaml	1:14 (100%) 1:14 (100%)	view
14	x 2	flutter-idea/testSrc/unit/io/flutter/run/bazelTest flutter-idea/testSrc/unit/io/flutter/run/bazelTest	LaunchCommandsTest.java LaunchCommandsTest.java	182:199 (6%) 207:224 (6%)	view
14	x 2	flutter-idea/testSrc/unit/io/flutter/run/bazelTest flutter-idea/testSrc/unit/io/flutter/run/bazelTest	LaunchCommandsTest.java LaunchCommandsTest.java	182:199 (6%) 232:250 (6%)	view
14	x 2	flutter-idea/testSrc/int...n/io/flutter/utils/math flutter-idea/testSrc/int...n/io/flutter/utils/math	Matrix4Test.java Matrix4Test.java	222:236 (3%) 286:300 (3%)	view
14	x 2	flutter-idea/testSrc/unit/io/flutter/run/bazelTest flutter-idea/testSrc/unit/io/flutter/run/bazelTest	LaunchCommandsTest.java LaunchCommandsTest.java	207:224 (6%) 232:250 (6%)	view
13	x 2	flutter-idea/src/io/flutter/utils/math flutter-idea/src/io/flutter/utils/math	Matrix4.java Matrix4.java	2119:2131 (<1%) 2191:2203 (<1%)	view
13	x 2	flutter-idea/src/io/flutter/actions flutter-idea/src/io/flutter/actions	OpenInAppCodeAction.java OpenInXcodeAction.java	101:116 (22%) 130:145 (13%)	view
13	x 2	flutter-idea/src/io/flutter/editor flutter-idea/src/io/flutter/editor	FlutterCupertinoIcons.java FlutterMaterialIcons.java	27:47 (61%) 27:47 (61%)	view
13	x 2	flutter-idea/testSrc/unit/io/flutter/utils flutter-idea/testSrc/unit/io/flutter/utils	EventStreamTest.java EventStreamTest.java	177:192 (7%) 212:227 (7%)	view

Duplicated Units

The list of top 20 duplicated units.

See data for all 21 unit duplicates...

Size	#	Folders	Files	Lines	Code
56	x 2	flutter-idea/testSrc/unit/io/flutter/perf flutter-idea/testSrc/unit/io/flutter/perf	FlutterWidgetPerfTest.java FlutterWidgetPerfTest.java	483:555 558:630	view
17	x 2	flutter-idea/src/io/flutter/editor flutter-idea/src/io/flutter/editor	FlutterColors.java FlutterCupertinoColors.java	48:67 26:45	view
12	x 2	flutter-idea/testSrc/unit/io/flutter/utils flutter-idea/testSrc/unit/io/flutter/utils	StdoutJsonParserTest.java StdoutJsonParserTest.java	73:86 89:102	view
12	x 2	flutter-idea/testSrc/unit/io/flutter/run/bazel flutter-idea/testSrc/unit/io/flutter/run/bazel	LaunchCommandsTest.java LaunchCommandsTest.java	274:288 309:323	view
12	x 2	flutter-idea/testSrc/unit/io/flutter/run/bazel flutter-idea/testSrc/unit/io/flutter/run/bazel	LaunchCommandsTest.java LaunchCommandsTest.java	292:306 326:340	view
12	x 2	flutter-idea/src/io/flutter/performance flutter-idea/src/io/flutter/view	FlutterPerformanceView.java FlutterView.java	83:99 838:854	view
11	x 2	flutter-idea/src/io/flutter/editor flutter-idea/src/io/flutter/editor	FlutterColors.java FlutterCupertinoColors.java	115:130 93:108	view
10	x 2	flutter-idea/src/io/flutter/view flutter-idea/src/io/flutter/view	FlutterView.java FlutterView.java	993:1005 1021:1033	view
10	x 7	flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol flutter-idea/src/org/dar...nalysis/server/protocol	FlutterWidgetPropertyEditor.java FlutterWidgetProperty.java FlutterWidgetPropertyValue.java ExtractWidgetOptions.java ExtractWidgetFeedback.java FlutterWidgetPropertyValueEnumItem.java FlutterOutlineAttribute.java	67:77 145:155 94:104 59:69 51:61 87:97 126:136	view
9	x 2	flutter-idea/src/io/flutter/actions flutter-idea/src/io/flutter/actions	OpenInXcodeAction.java OpenInAppCodeAction.java	163:173 77:86	view
8	x 2	flutter-idea/testSrc/unit/io/flutter/editor flutter-idea/testSrc/unit/io/flutter/editor	FlutterColorProviderTest.java FlutterColorProviderTest.java	24:32 123:131	view
8	x 2	flutter-idea/testSrc/unit/io/flutter/editor flutter-idea/testSrc/unit/io/flutter/editor	FlutterColorProviderTest.java FlutterColorProviderTest.java	35:43 57:65	view
8	x 2	flutter-idea/testSrc/unit/io/flutter/editor flutter-idea/testSrc/unit/io/flutter/editor	FlutterColorProviderTest.java FlutterColorProviderTest.java	46:54 68:76	view
8	x 2	flutter-idea/src/io/flutter/performance flutter-idea/src/io/flutter/performance	FlutterPerformanceView.java FlutterPerformanceView.java	278:286 288:296	view
7	x 2	flutter-idea/testSrc/unit/io/flutter/editor flutter-idea/testSrc/unit/io/flutter/editor	FlutterIconLineMarkerTest.java FlutterIconLineMarkerTest.java	42:49 52:59	view
7	x 2	flutter-idea/testSrc/unit/io/flutter/logging flutter-idea/testSrc/unit/io/flutter/logging	FlutterConsoleLogManagerTest.java FlutterConsoleLogManagerTest.java	61:70 73:82	view
6	x 2	flutter-idea/testSrc/unit/io/flutter/editor flutter-idea/testSrc/unit/io/flutter/editor	FlutterIconLineMarkerTest.java FlutterIconLineMarkerTest.java	33:39 72:78	view
6	x 3	flutter-idea/testSrc/unit/io/flutter/run/bazelTest flutter-idea/testSrc/unit/io/flutter/run flutter-idea/testSrc/unit/io/flutter/run/bazel	BazelTestFieldsTest.java SdkFieldsTest.java BazelFieldsTest.java	80:86 96:102 95:101	view
6	x 2	flutter-idea/src/io/flutter/pub flutter-idea/src/io/flutter/pub	PubRoot.java PubRoot.java	372:378 384:390	view
6	x 2	flutter-idea/src/io/flutter/sdk flutter-idea/src/io/flutter/run/daemon	AndroidEmulatorManager.java DeviceService.java	45:51 95:101	view