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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.

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Duplication Overall

4% duplication:

20,661 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
897 duplicated lines

193 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
firebase/auth (1%) --> firebase/auth/multitenancy (13%)	93	2 file pairs	details...
firebase/database/core (<1%) --> firebase/remoteconfig (3%)	84	42 file pairs	details...
firebase/database/snapshot (2%) --> firebase/remoteconfig (2%)	60	14 file pairs	details...

Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 20 longest duplicates.

See data for all 193 duplicates...

Size	#	Folders	Files	Lines	Code
12	x 2	src/main/java/com/google/firebase/auth/internal src/main/java/com/google/firebase/auth/internal	BatchDeleteResponse.java UploadAccountResponse.java	28:48 (85%) 28:46 (85%)	view
12	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google...ebase/auth/multitenancy	ListProviderConfigsPage.java ListTenantsPage.java	53:88 (10%) 50:85 (12%)	view
12	x 2	src/main/java/com/google/firebase/messaging src/main/java/com/google/firebase/messaging	Message.java MulticastMessage.java	182:217 (10%) 139:174 (16%)	view
12	x 2	src/main/java/com/google...ebase/database/snapshot src/main/java/com/google...ebase/database/snapshot	DoubleNode.java LongNode.java	27:44 (36%) 27:44 (37%)	view
12	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/auth	ProviderConfig.java ProviderConfig.java	79:109 (22%) 125:155 (22%)	view
11	x 2	src/main/java/com/google...base/database/core/view src/main/java/com/google...base/database/core/view	ViewProcessor.java ViewProcessor.java	504:514 (2%) 524:534 (2%)	view
10	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/auth	ListProviderConfigsPage.java ListUsersPage.java	155:171 (8%) 144:160 (8%)	view
10	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google...ebase/auth/multitenancy	ListUsersPage.java ListTenantsPage.java	144:160 (8%) 152:168 (10%)	view
10	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/remoteconfig	ListUsersPage.java ListVersionsPage.java	144:160 (8%) 150:166 (8%)	view
10	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/remoteconfig	ListProviderConfigsPage.java ListVersionsPage.java	155:171 (8%) 150:166 (8%)	view
10	x 2	src/main/java/com/google...ebase/auth/multitenancy src/main/java/com/google/firebase/remoteconfig	ListTenantsPage.java ListVersionsPage.java	152:168 (10%) 150:166 (8%)	view
10	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google...ebase/auth/multitenancy	ListProviderConfigsPage.java ListTenantsPage.java	155:171 (8%) 152:168 (10%)	view
9	x 2	src/main/java/com/google/firebase/messaging src/main/java/com/google/firebase/remoteconfig	FirebaseMessagingClientImpl.java FirebaseRemoteConfigClientImpl.java	208:220 (4%) 201:213 (6%)	view
9	x 2	src/main/java/com/google...ase/database/connection src/main/java/com/google/firebase/database/core	HostInfo.java RepoInfo.java	43:52 (25%) 54:63 (14%)	view
9	x 2	src/main/java/com/google...ebase/projectmanagement src/main/java/com/google...ebase/projectmanagement	AndroidAppMetadata.java IosAppMetadata.java	46:72 (18%) 45:71 (18%)	view
8	x 2	src/main/java/com/google...tabase/core/view/filter src/main/java/com/google...tabase/core/view/filter	LimitedFilter.java RangedFilter.java	50:57 (6%) 79:86 (11%)	view
8	x 2	src/main/java/com/google/firebase/database src/main/java/com/google/firebase/database	DatabaseReference.java OnDisconnect.java	297:304 (5%) 160:167 (11%)	view
8	x 2	src/main/java/com/google/firebase/database/core src/main/java/com/google/firebase/database/core	ChildEventRegistration.java ValueEventRegistration.java	56:65 (11%) 56:65 (14%)	view
8	x 2	src/main/java/com/google...base/database/core/view src/main/java/com/google...base/database/core/view	ViewProcessor.java ViewProcessor.java	442:449 (1%) 456:463 (1%)	view
8	x 2	src/main/java/com/google/firebase/messaging src/main/java/com/google/firebase/messaging	AndroidFcmOptions.java FcmOptions.java	48:64 (44%) 48:65 (44%)	view

Duplicated Units

The list of top 4 duplicated units.

See data for all 4 unit duplicates...

Size	#	Folders	Files	Lines	Code
9	x 4	src/main/java/com/google/firebase/remoteconfig src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/auth src/main/java/com/google...ebase/auth/multitenancy	ListVersionsPage.java ListProviderConfigsPage.java ListUsersPage.java ListTenantsPage.java	154:164 159:169 148:158 156:166	view
9	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/auth	SamlProviderConfig.java SamlProviderConfig.java	186:195 302:311	view
8	x 2	src/main/java/com/google...base/database/utilities src/main/java/com/google...base/database/utilities	Utilities.java Utilities.java	216:224 226:234	view
7	x 2	src/main/java/com/google/firebase/auth src/main/java/com/google/firebase/auth	SamlProviderConfig.java SamlProviderConfig.java	170:177 286:293	view