Places in code with 6 or more lines that are exactly the same.
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.
- To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:
- Avoid Repetition, MartinFlower.com (IEEE Software article)
- Refactoring duplicated code, sourcemaking.com
- Beck Design Rules, MartinFowler.com
- DRY (Don't Repeat Yourself) Principle, Wikipedia
- The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
- Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:
- "Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"
- Reducing Coupling, MartinFlower.com (IEEE Software article):
- "There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."
Duplication Overall
- 15% duplication:
- 12,736 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 2,015 duplicated lines
- 471 duplicates
Duplication per Extension
Duplication per Component (primary)
Duplication Between Components (50+ lines)
Open 3D force graph...
Show more details on duplication between components...
From Component
--> To Component
Duplicated
Lines
File Pairs
Details
src/main/java/com/microsoft/store/partnercenter/customers (14%)
--> src/main/java/com/microsoft/store/partnercenter/products (30%)
259
26 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/offers (15%)
--> src/main/java/com/microsoft/store/partnercenter/products (12%)
104
20 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/customers (4%)
--> src/main/java/com/microsoft/store/partnercenter/offers (12%)
87
16 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/entitlements (41%)
--> src/main/java/com/microsoft/store/partnercenter/offers (9%)
63
4 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/offers (8%)
--> src/main/java/com/microsoft/store/partnercenter/orders (12%)
60
4 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/offers (8%)
--> src/main/java/com/microsoft/store/partnercenter/utilization (24%)
60
4 file pairs
details...
src/main/java/com/microsoft/store/partnercenter/entitlements (33%)
--> src/main/java/com/microsoft/store/partnercenter/products (5%)
51
5 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| src/main/java/com/microsoft/store/partnercenter/customers (14%) --> src/main/java/com/microsoft/store/partnercenter/products (30%) |
259 | 26 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/offers (15%) --> src/main/java/com/microsoft/store/partnercenter/products (12%) |
104 | 20 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/customers (4%) --> src/main/java/com/microsoft/store/partnercenter/offers (12%) |
87 | 16 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/entitlements (41%) --> src/main/java/com/microsoft/store/partnercenter/offers (9%) |
63 | 4 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/offers (8%) --> src/main/java/com/microsoft/store/partnercenter/orders (12%) |
60 | 4 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/offers (8%) --> src/main/java/com/microsoft/store/partnercenter/utilization (24%) |
60 | 4 file pairs | details... |
| src/main/java/com/microsoft/store/partnercenter/entitlements (33%) --> src/main/java/com/microsoft/store/partnercenter/products (5%) |
51 | 5 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 36 | x 2 | src/main/java/com/micros...ter/models/servicecostssrc/main/java/com/micros...ter/models/servicecosts |  ServiceCostLineItem.javaServiceCostsSummary.java |
473:563 (22%)79:169 (65%) | view |
| 23 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros...re/partnercenter/offers | CategoryOffersCollectionOperations.javaOfferCollectionOperations.java |
96:121 (33%)94:119 (38%) | view |
| 19 | x 2 | src/main/java/com/micros.../partnercenter/productssrc/main/java/com/micros.../partnercenter/products | AvailabilityCollectionByTargetSegment...AvailabilityCollectionByTargetSegment... |
70:91 (38%)82:103 (39%) | view |
| 18 | x 2 | src/main/java/com/micros.../partnercenter/productssrc/main/java/com/micros.../partnercenter/products | ProductCollectionByCountryByTargetVie...ProductCollectionByCountryByTargetVie... |
57:77 (43%)62:82 (54%) | view |
| 17 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...nter/customers/products | CustomerProductCollectionByTargetView...CustomerProductCollectionByTargetView... |
71:89 (45%)88:106 (37%) | view |
| 17 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros...re/partnercenter/offers | CategoryOffersCollectionOperations.javaCategoryOffersCollectionOperations.java |
42:60 (24%)79:97 (24%) | view |
| 16 | x 2 | src/main/java/com/micros...tnercenter/models/utilssrc/main/java/com/micros...tnercenter/models/utils | QuadrupleTuple.javaQuintupleTuple.java |
24:61 (61%)27:64 (50%) | view |
| 16 | x 2 | src/main/java/com/micros...rcenter/models/invoicessrc/main/java/com/micros...rcenter/models/invoices | DailyRatedUsageLineItem.javaOneTimeInvoiceLineItem.java |
885:957 (6%)703:775 (7%) | view |
| 16 | x 2 | src/main/java/com/micros...rcenter/models/invoicessrc/main/java/com/micros...ter/models/servicecosts | OneTimeInvoiceLineItem.javaServiceCostLineItem.java |
703:775 (7%)132:204 (10%) | view |
| 16 | x 2 | src/main/java/com/micros...rcenter/models/invoicessrc/main/java/com/micros...ter/models/servicecosts | DailyRatedUsageLineItem.javaServiceCostLineItem.java |
885:957 (6%)132:204 (10%) | view |
| 16 | x 2 | src/main/java/com/micros...rcenter/models/invoicessrc/main/java/com/micros...rcenter/models/invoices | DailyRatedUsageLineItem.javaOneTimeInvoiceLineItem.java |
1145:1217 (6%)843:915 (7%) | view |
| 15 | x 2 | src/main/java/com/micros...rcenter/models/partnerssrc/main/java/com/micros...rcenter/models/partners | BillingProfile.javaLegalBusinessProfile.java |
32:71 (36%)27:66 (39%) | view |
| 15 | x 2 | src/main/java/com/micros...rcenter/models/productssrc/main/java/com/micros.../models/servicerequests | Product.javaServiceRequest.java |
68:107 (46%)21:60 (16%) | view |
| 15 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...nter/customers/products | CustomerProductCollectionByTargetView...CustomerProductCollectionByTargetView... |
89:104 (31%)87:102 (40%) | view |
| 15 | x 2 | src/main/java/com/micros...nercenter/models/offerssrc/main/java/com/micros...rcenter/models/products | Offer.javaSku.java |
58:97 (10%)66:105 (24%) | view |
| 14 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros...re/partnercenter/offers | CategoryOffersCollectionOperations.javaOfferCollectionOperations.java |
59:84 (20%)66:91 (23%) | view |
| 13 | x 2 | src/main/java/com/micros...nercenter/models/offerssrc/main/java/com/micros...rcenter/models/products | BillingCycleType.javaBillingCycleType.java |
11:55 (100%)11:54 (100%) | view |
| 13 | x 2 | src/main/java/com/micros...tnercenter/entitlementssrc/main/java/com/micros...tnercenter/entitlements | EntitlementCollectionByEntitlementTyp...EntitlementCollectionOperations.java |
80:93 (34%)77:90 (41%) | view |
| 12 | x 2 | src/main/java/com/micros...tnercenter/models/utilssrc/main/java/com/micros...tnercenter/models/utils | QuintupleTuple.javaTripletTuple.java |
27:54 (37%)21:48 (60%) | view |
| 12 | x 2 | src/main/java/com/micros...odels/devicesdeploymentsrc/main/java/com/micros...odels/devicesdeployment | Device.javaDeviceUploadDetails.java |
37:63 (21%)32:58 (32%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 30 | x 2 | src/main/java/com/micros...partnercenter/ratecardssrc/main/java/com/micros...partnercenter/ratecards | AzureRateCardOperations.javaAzureRateCardOperations.java |
37:70 80:113 | view |
| 26 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros.../partnercenter/products | CustomerProductCollectionByTargetView...SkuCollectionByTargetSegmentOperation... |
78:107 58:87 | view |
| 24 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros.../partnercenter/products | CategoryOffersCollectionOperations.javaProductCollectionByCountryByTargetVie... |
40:67 62:89 | view |
| 19 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros.../partnercenter/products | CustomerSkuCollectionByTargetSegmentO...AvailabilityCollectionOperations.java |
61:82 80:101 | view |
| 18 | x 5 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros.../partnercenter/productssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptions | CustomerProductCollectionByTargetView...OfferAddOnsOperations.javaSkuCollectionOperations.javaOrderSubscriptionCollectionOperations...PartnerSubscriptionCollectionOperatio... |
83:103 46:66 74:94 56:76 57:77 | view |
| 18 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros.../partnercenter/products | OfferOperations.javaProductOperations.java |
66:86 70:90 | view |
| 16 | x 2 | src/main/java/com/micros...re/partnercenter/offerssrc/main/java/com/micros...re/partnercenter/offers | OfferCategoryCollectionOperations.javaOfferCollectionOperations.java |
44:62 56:74 | view |
| 15 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...nter/customers/products | CustomerAvailabilityCollectionOperati...CustomerSkuOperations.java |
35:53 34:52 | view |
| 13 | x 2 | src/main/java/com/micros...rcenter/productupgradessrc/main/java/com/micros...rcenter/productupgrades | ProductUpgradeCollectionOperations.javaProductUpgradeOperations.java |
53:67 39:53 | view |
| 12 | x 4 | src/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...ore/partnercenter/usagesrc/main/java/com/micros...ore/partnercenter/usage | SubscriptionAddOnCollectionOperations...SubscriptionUpgradeCollectionOperatio...ResourceUsageRecordCollectionOperatio...SubscriptionUsageSummaryOperations.java |
31:45 32:46 31:46 30:44 | view |
| 11 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...nter/customers/products | CustomerProductOperations.javaCustomerSkuCollectionOperations.java |
34:47 32:45 | view |
| 11 | x 4 | src/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...nercenter/customerusers | CustomerUserLicenseCollectionOperatio...CustomerUserLicenseUpdateOperations.javaCustomerUserOperations.javaCustomerUserRoleCollectionOperations.... |
34:45 27:38 42:53 29:40 | view |
| 11 | x 3 | src/main/java/com/micros.../partnercenter/invoicessrc/main/java/com/micros.../partnercenter/invoicessrc/main/java/com/micros.../partnercenter/invoices | ReceiptDocumentsOperations.javaReceiptOperations.javaReceiptStatementOperations.java |
22:35 22:35 27:40 | view |
| 11 | x 2 | src/main/java/com/micros...re/partnercenter/orderssrc/main/java/com/micros...re/partnercenter/orders | OrderLineItemActivationLinkOperations...OrderLineItemOperations.java |
32:45 26:39 | view |
| 11 | x 3 | src/main/java/com/micros...re/partnercenter/orderssrc/main/java/com/micros...re/partnercenter/orderssrc/main/java/com/micros...nercenter/subscriptions | OrderOperations.javaOrderProvisioningStatusOperations.javaOrderSubscriptionCollectionOperations... |
33:46 31:44 35:48 | view |
| 11 | x 7 | src/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...ore/partnercenter/usage | SubscriptionConversionCollectionOpera...SubscriptionOperations.javaSubscriptionProvisioningStatusOperati...SubscriptionRegistrationOperations.javaSubscriptionRegistrationStatusOperati...SubscriptionSupportContactOperations....SubscriptionUsageRecordCollectionOper... |
32:45 94:107 30:43 31:44 30:43 30:43 26:37 | view |
| 10 | x 2 | src/main/java/com/micros.../customerdirectoryrolessrc/main/java/com/micros...enter/devicesdeployment | UserMemberOperations.javaDeviceOperations.java |
56:66 69:79 | view |
| 10 | x 2 | src/main/java/com/micros...nter/customers/productssrc/main/java/com/micros...re/partnercenter/orders | CustomerAvailabilityCollectionOperati...OrderLineItemActivationLinkOperations... |
73:83 53:63 | view |
| 9 | x 12 | src/main/java/com/micros...ore/partnercenter/cartssrc/main/java/com/micros...nter/customers/productssrc/main/java/com/micros.../customers/servicecostssrc/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...enter/devicesdeploymentsrc/main/java/com/micros...enter/devicesdeploymentsrc/main/java/com/micros...rcenter/servicerequestssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptions... | CartOperations.javaCustomerProductOperations.javaServiceCostSummaryOperations.javaCustomerUserOperations.javaBatchJobStatusOperations.javaConfigurationPolicyOperations.javaCustomerServiceRequestOperations.javaSubscriptionOperations.javaSubscriptionProvisioningStatusOperati...SubscriptionRegistrationStatusOperati...... |
68:77 55:64 44:53 61:70 46:55 46:55 52:61 303:312 50:59 50:59 ... | view |
| 9 | x 15 | src/main/java/com/micros.../customerdirectoryrolessrc/main/java/com/micros...nter/customers/productssrc/main/java/com/micros.../customers/servicecostssrc/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...nercenter/customeruserssrc/main/java/com/micros...enter/devicesdeploymentsrc/main/java/com/micros...re/partnercenter/orderssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptionssrc/main/java/com/micros...nercenter/subscriptions... | UserMemberCollectionOperations.javaCustomerSkuCollectionOperations.javaServiceCostLineItemsOperations.javaCustomerUserLicenseCollectionOperatio...CustomerUserRoleCollectionOperations....DeviceCollectionOperations.javaOrderProvisioningStatusOperations.javaSubscriptionActivationLinksOperations...SubscriptionAddOnCollectionOperations...SubscriptionConversionCollectionOpera...... |
96:105 77:86 45:54 52:61 43:52 88:97 52:61 50:59 53:62 69:78 ... | view |