uber / NullAway - 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

6% duplication:

13,155 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
890 duplicated lines

159 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 159 duplicates...

Size	#	Folders	Files	Lines	Code
20	x 2	nullaway/src/main/java/com/uber/nullaway/handlers test-library-models/src/...laway/testlibrarymodels	StreamNullabilityPropagatorFactory.java TestLibraryModels.java	40:63 (20%) 101:120 (22%)	view
16	x 2	nullaway/src/main/java/c.../contract/fieldcontract nullaway/src/main/java/c.../contract/fieldcontract	EnsuresNonNullHandler.java EnsuresNonNullIfHandler.java	149:167 (17%) 281:298 (11%)	view
13	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Toys.java Toys.java	14:29 (46%) 16:31 (22%)	view
13	x 2	nullaway/src/main/java/com/uber/nullaway/generics nullaway/src/main/java/com/uber/nullaway/generics	GenericsChecks.java GenericsChecks.java	80:93 (2%) 173:187 (2%)	view
12	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Bar.java Bar.java	3:19 (100%) 3:19 (100%)	view
11	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java CompositeHandler.java	145:157 (10%) 180:192 (5%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AssertionHandler.java ContractHandler.java	46:55 (23%) 183:192 (5%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	ApacheThriftIsSetHandler.java OptionalEmptinessHandler.java	73:82 (11%) 116:125 (4%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	ApacheThriftIsSetHandler.java BaseNoOpHandler.java	73:82 (11%) 148:157 (9%)	view
10	x 2	nullaway/src/main/java/c.../contract/fieldcontract nullaway/src/main/java/c.../contract/fieldcontract	EnsuresNonNullHandler.java EnsuresNonNullIfHandler.java	133:149 (10%) 148:159 (6%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java OptionalEmptinessHandler.java	148:157 (9%) 116:125 (4%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	AssertionHandler.java LibraryModelsHandler.java	46:55 (23%) 226:235 (<1%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	LibraryModelsHandler.java ContractHandler.java	226:235 (<1%) 183:192 (5%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	AbstractFieldContractHandler.java AbstractFieldContractHandler.java	175:184 (7%) 226:235 (7%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	AbstractFieldContractHandler.java AbstractFieldContractHandler.java	155:164 (7%) 175:184 (7%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c.../contract/fieldcontract	RestrictiveAnnotationHandler.java EnsuresNonNullHandler.java	157:166 (10%) 149:158 (10%)	view
10	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Foo.java Foo.java	3:17 (100%) 3:17 (62%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	GrpcHandler.java OptionalEmptinessHandler.java	85:94 (12%) 116:125 (4%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	ApacheThriftIsSetHandler.java GrpcHandler.java	73:82 (11%) 85:94 (12%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	ApacheThriftIsSetHandler.java CompositeHandler.java	73:82 (11%) 183:192 (5%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	LombokHandler.java RestrictiveAnnotationHandler.java	60:70 (19%) 78:88 (10%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	CompositeHandler.java OptionalEmptinessHandler.java	183:192 (5%) 116:125 (4%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	AbstractFieldContractHandler.java AbstractFieldContractHandler.java	155:164 (7%) 226:235 (7%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java GrpcHandler.java	148:157 (9%) 85:94 (12%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c.../contract/fieldcontract	RestrictiveAnnotationHandler.java EnsuresNonNullIfHandler.java	157:166 (10%) 281:290 (6%)	view
10	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	CompositeHandler.java GrpcHandler.java	183:192 (5%) 85:94 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	175:183 (6%) 103:111 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	LombokHandler.java OptionalEmptinessHandler.java	60:68 (17%) 82:90 (4%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	226:234 (6%) 55:63 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	OptionalEmptinessHandler.java RestrictiveAnnotationHandler.java	82:90 (4%) 78:86 (9%)	view
9	x 2	nullaway/src/main/java/c...laway/handlers/contract nullaway/src/main/java/c...laway/handlers/contract	ContractUtils.java ContractUtils.java	55:63 (12%) 103:111 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java CompositeHandler.java	162:170 (8%) 203:211 (4%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	175:183 (6%) 55:63 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java LibraryModelsHandler.java	162:170 (8%) 98:106 (<1%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	StreamNullabilityPropagatorFactory.java StreamNullabilityPropagatorFactory.java	143:151 (9%) 153:161 (9%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	226:234 (6%) 103:111 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java RestrictiveAnnotationHandler.java	162:170 (8%) 172:180 (9%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	155:163 (6%) 55:63 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	CompositeHandler.java RestrictiveAnnotationHandler.java	203:211 (4%) 172:180 (9%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/c...laway/handlers/contract	AbstractFieldContractHandler.java ContractUtils.java	155:163 (6%) 103:111 (12%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	LibraryModelsHandler.java RestrictiveAnnotationHandler.java	98:106 (<1%) 172:180 (9%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	CompositeHandler.java LibraryModelsHandler.java	203:211 (4%) 98:106 (<1%)	view
9	x 2	nullaway/src/main/java/com/uber/nullaway nullaway/src/main/java/com/uber/nullaway/handlers	NullAway.java StreamNullabilityPropagator.java	381:391 (<1%) 528:538 (2%)	view
8	x 2	nullaway/src/main/java/com/uber/nullaway nullaway/src/main/java/com/uber/nullaway	NullabilityUtil.java NullabilityUtil.java	206:215 (3%) 238:246 (3%)	view
8	x 2	nullaway/src/main/java/c...xserialization/adapters nullaway/src/main/java/c...xserialization/adapters	SerializationV1Adapter.java SerializationV3Adapter.java	36:43 (24%) 53:60 (13%)	view
8	x 2	sample-library-model/src...a/com/uber/modelexample test-library-models/src/...laway/testlibrarymodels	ExampleLibraryModels.java TestLibraryModels.java	28:39 (25%) 32:43 (9%)	view
8	x 2	nullaway/src/main/java/com/uber/nullaway/handlers nullaway/src/main/java/com/uber/nullaway/handlers	BaseNoOpHandler.java CompositeHandler.java	126:135 (7%) 156:165 (4%)	view
8	x 2	nullaway/src/main/java/com/uber/nullaway/handlers sample-library-model/src...a/com/uber/modelexample	LibraryModelsHandler.java ExampleLibraryModels.java	1431:1442 (<1%) 50:61 (25%)	view
8	x 2	nullaway/src/main/java/com/uber/nullaway/dataflow nullaway/src/main/java/c...laway/handlers/contract	CoreNullnessStoreInitializer.java ContractNullnessStoreInitializer.java	31:38 (7%) 29:36 (25%)	view
8	x 2	nullaway/src/main/java/c.../contract/fieldcontract nullaway/src/main/java/c.../contract/fieldcontract	EnsuresNonNullHandler.java EnsuresNonNullIfHandler.java	168:177 (8%) 304:313 (5%)	view

Duplicated Units

The list of top 4 duplicated units.

See data for all 4 unit duplicates...

Size	#	Folders	Files	Lines	Code
8	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Toys.java Toys.java	33:42 88:97	view
7	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Toys.java Toys.java	13:21 15:23	view
7	x 2	jar-infer/test-android-l...rinfer/toys/unannotated jar-infer/test-java-lib-...rinfer/toys/unannotated	Toys.java Toys.java	23:31 25:33	view
7	x 2	nullaway/src/main/java/c.../contract/fieldcontract nullaway/src/main/java/c.../contract/fieldcontract	EnsuresNonNullIfHandler.java EnsuresNonNullHandler.java	149:157 134:142	view