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
- 8% duplication:
- 19,099 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 1,571 duplicated lines
- 227 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
azure-toolkit-libs/azure-toolkit-mysql-lib (61%)
--> azure-toolkit-libs/azure-toolkit-postgre-lib (61%)
690
15 file pairs
details...
azure-toolkit-libs/azure-toolkit-mysql-lib (31%)
--> azure-toolkit-libs/azure-toolkit-sqlserver-lib (34%)
354
9 file pairs
details...
azure-toolkit-libs/azure-toolkit-postgre-lib (31%)
--> azure-toolkit-libs/azure-toolkit-sqlserver-lib (34%)
348
9 file pairs
details...
azure-toolkit-libs/azure-toolkit-mysql-lib (6%)
--> azure-toolkit-libs/azure-toolkit-springcloud-lib (4%)
78
8 file pairs
details...
azure-toolkit-libs/azure-toolkit-springcloud-lib (4%)
--> azure-toolkit-libs/azure-toolkit-sqlserver-lib (7%)
78
8 file pairs
details...
azure-toolkit-libs/azure-toolkit-postgre-lib (6%)
--> azure-toolkit-libs/azure-toolkit-springcloud-lib (4%)
78
8 file pairs
details...
azure-toolkit-libs/azure-toolkit-postgre-lib (5%)
--> azure-toolkit-libs/azure-toolkit-redis-lib (10%)
64
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-mysql-lib (5%)
--> azure-toolkit-libs/azure-toolkit-storage-lib (8%)
64
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-mysql-lib (5%)
--> azure-toolkit-libs/azure-toolkit-redis-lib (10%)
64
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-postgre-lib (5%)
--> azure-toolkit-libs/azure-toolkit-storage-lib (8%)
64
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-redis-lib (10%)
--> azure-toolkit-libs/azure-toolkit-sqlserver-lib (5%)
60
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-redis-lib (10%)
--> azure-toolkit-libs/azure-toolkit-springcloud-lib (3%)
60
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-sqlserver-lib (5%)
--> azure-toolkit-libs/azure-toolkit-storage-lib (7%)
60
4 file pairs
details...
azure-toolkit-libs/azure-toolkit-springcloud-lib (3%)
--> azure-toolkit-libs/azure-toolkit-storage-lib (7%)
60
4 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| azure-toolkit-libs/azure-toolkit-mysql-lib (61%) --> azure-toolkit-libs/azure-toolkit-postgre-lib (61%) |
690 | 15 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-mysql-lib (31%) --> azure-toolkit-libs/azure-toolkit-sqlserver-lib (34%) |
354 | 9 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-postgre-lib (31%) --> azure-toolkit-libs/azure-toolkit-sqlserver-lib (34%) |
348 | 9 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-mysql-lib (6%) --> azure-toolkit-libs/azure-toolkit-springcloud-lib (4%) |
78 | 8 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-springcloud-lib (4%) --> azure-toolkit-libs/azure-toolkit-sqlserver-lib (7%) |
78 | 8 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-postgre-lib (6%) --> azure-toolkit-libs/azure-toolkit-springcloud-lib (4%) |
78 | 8 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-postgre-lib (5%) --> azure-toolkit-libs/azure-toolkit-redis-lib (10%) |
64 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-mysql-lib (5%) --> azure-toolkit-libs/azure-toolkit-storage-lib (8%) |
64 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-mysql-lib (5%) --> azure-toolkit-libs/azure-toolkit-redis-lib (10%) |
64 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-postgre-lib (5%) --> azure-toolkit-libs/azure-toolkit-storage-lib (8%) |
64 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-redis-lib (10%) --> azure-toolkit-libs/azure-toolkit-sqlserver-lib (5%) |
60 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-redis-lib (10%) --> azure-toolkit-libs/azure-toolkit-springcloud-lib (3%) |
60 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-sqlserver-lib (5%) --> azure-toolkit-libs/azure-toolkit-storage-lib (7%) |
60 | 4 file pairs | details... |
| azure-toolkit-libs/azure-toolkit-springcloud-lib (3%) --> azure-toolkit-libs/azure-toolkit-storage-lib (7%) |
60 | 4 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 59 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre |  MySqlServerDraft.javaPostgreSqlServerDraft.java |
135:227 (43%)136:228 (42%) | view |
| 59 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlServerDraft.javaMicrosoftSqlServerDraft.java |
135:227 (43%)99:191 (49%) | view |
| 59 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | PostgreSqlServerDraft.javaMicrosoftSqlServerDraft.java |
136:228 (42%)99:191 (49%) | view |
| 34 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlFirewallRuleDraft.javaPostgreSqlFirewallRuleDraft.java |
82:130 (40%)83:131 (40%) | view |
| 30 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlServerDraft.javaPostgreSqlServerDraft.java |
49:90 (21%)49:90 (21%) | view |
| 28 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlFirewallRuleDraft.javaMicrosoftSqlFirewallRuleDraft.java |
88:130 (33%)86:128 (35%) | view |
| 28 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | PostgreSqlFirewallRuleDraft.javaMicrosoftSqlFirewallRuleDraft.java |
89:131 (33%)86:128 (35%) | view |
| 23 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlServer.javaPostgreSqlServer.java |
123:162 (23%)124:163 (23%) | view |
| 23 | x 2 | azure-toolkit-libs/azure...osoft/azure/toolkit/libazure-toolkit-libs/azure...oolkit/lib/common/model | AzureService.javaAbstractAzResourceManager.java |
71:96 (30%)79:104 (29%) | view |
| 15 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlFirewallRuleDraft.javaPostgreSqlFirewallRuleDraft.java |
57:73 (18%)58:74 (18%) | view |
| 15 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlFirewallRuleModule.javaPostgreSqlFirewallRuleModule.java |
36:56 (22%)36:56 (22%) | view |
| 14 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlServerModule.javaPostgreSqlServerModule.java |
25:46 (35%)25:46 (35%) | view |
| 14 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlFirewallRuleDraft.javaPostgreSqlFirewallRuleDraft.java |
37:54 (16%)38:55 (16%) | view |
| 13 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlServerDraft.javaMicrosoftSqlServerDraft.java |
49:65 (9%)39:55 (10%) | view |
| 13 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | PostgreSqlServerDraft.javaMicrosoftSqlServerDraft.java |
49:65 (9%)39:55 (10%) | view |
| 12 | x 2 | azure-toolkit-libs/azure...appservice/service/implazure-toolkit-libs/azure...appservice/service/impl | FunctionApp.javaWebApp.java |
281:296 (5%)238:253 (6%) | view |
| 12 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | PostgreSqlFirewallRuleModule.javaMicrosoftSqlFirewallRuleModule.java |
89:104 (17%)89:104 (17%) | view |
| 12 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlFirewallRuleModule.javaMicrosoftSqlFirewallRuleModule.java |
89:104 (17%)89:104 (17%) | view |
| 12 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlFirewallRuleModule.javaPostgreSqlFirewallRuleModule.java |
89:104 (17%)89:104 (17%) | view |
| 11 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...oft/azure/toolkit/redis | PostgreSqlFirewallRuleDraft.javaRedisCacheDraft.java |
38:52 (13%)39:53 (13%) | view |
Duplicated Units
The list of top 19 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 12 | x 2 | azure-toolkit-libs/azure...appservice/service/implazure-toolkit-libs/azure...ure/toolkit/lib/compute | AbstractAzureManager.javaAbstractAzureResource.java |
55:67 54:66 | view |
| 12 | x 2 | azure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | PostgreSqlServerDraft.javaMicrosoftSqlServerDraft.java |
125:137 88:100 | view |
| 12 | x 2 | azure-toolkit-libs/azure...toolkit/lib/springcloudazure-toolkit-libs/azure.../lib/springcloud/config | SpringCloudDeploymentDraft.javaSpringCloudDeploymentConfig.java |
197:209 83:95 | view |
| 11 | x 2 | azure-toolkit-libs/azure...appservice/service/implazure-toolkit-libs/azure...appservice/service/impl | FunctionApp.javaWebApp.java |
128:139 128:139 | view |
| 11 | x 3 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlServerDraft.javaPostgreSqlServerDraft.javaMicrosoftSqlServerDraft.java |
206:217 207:218 170:181 | view |
| 9 | x 2 | azure-toolkit-libs/azure...it/lib/appservice/utilsazure-toolkit-libs/azure...oolkit/lib/common/utils | Utils.javaUtils.java |
76:85 179:188 | view |
| 9 | x 2 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgre | MySqlServerDraft.javaPostgreSqlServerDraft.java |
73:82 73:82 | view |
| 8 | x 2 | azure-toolkit-libs/azure...rvice/handlers/artifactazure-webapp-maven-plugi...zure/maven/webapp/utils | FTPUploader.javaFTPUtils.java |
139:147 27:35 | view |
| 8 | x 3 | azure-toolkit-libs/azure...azure/toolkit/lib/mysqlazure-toolkit-libs/azure...ure/toolkit/lib/postgreazure-toolkit-libs/azure...e/toolkit/lib/sqlserver | MySqlServerDraft.javaPostgreSqlServerDraft.javaMicrosoftSqlServerDraft.java |
58:66 58:66 48:56 | view |
| 7 | x 2 | azure-functions-maven-pl...ft/azure/maven/functionazure-toolkit-libs/azure...ppservice/function/core | PackageMojo.javaAzureFunctionPackager.java |
300:307 203:210 | view |
| 7 | x 2 | azure-functions-maven-pl...ft/azure/maven/functionazure-toolkit-libs/azure...ppservice/function/core | PackageMojo.javaAzureFunctionPackager.java |
316:323 219:226 | view |
| 7 | x 2 | azure-maven-plugin-lib/s...osoft/azure/maven/utilsazure-webapp-maven-plugi...zure/maven/webapp/utils | XmlUtils.javaXMLUtils.java |
70:77 19:26 | view |
| 7 | x 2 | azure-toolkit-libs/azure.../toolkit/lib/appserviceazure-toolkit-libs/azure.../toolkit/lib/appservice | AzureFunction.javaAzureWebApp.java |
63:70 74:81 | view |
| 7 | x 2 | azure-toolkit-libs/azure...ppservice/function/implazure-toolkit-libs/azure...egacy/function/handlers | DefaultFunctionProject.javaAnnotationHandlerImpl.java |
96:103 47:54 | view |
| 7 | x 3 | azure-toolkit-libs/azure...appservice/service/implazure-toolkit-libs/azure...olkit/lib/common/entityazure-toolkit-libs/azure...ure/toolkit/lib/compute | AbstractAppService.javaAbstractAzureResource.javaAbstractAzureResource.java |
232:239 70:77 95:102 | view |
| 6 | x 2 | azure-sfmesh-maven-plugi...ure/maven/servicefabricazure-sfmesh-maven-plugi...ure/maven/servicefabric | Utils.javaUtils.java |
107:113 115:121 | view |
| 6 | x 5 | azure-toolkit-libs/azure...lib/applicationinsightsazure-toolkit-libs/azure.../toolkit/lib/appserviceazure-toolkit-libs/azure...osoft/azure/toolkit/libazure-toolkit-libs/azure...osoft/azure/toolkit/libazure-toolkit-libs/azure...oolkit/lib/common/model | ApplicationInsights.javaAzureAppService.javaAbstractAzureResourceModule.javaAzureService.javaAbstractAzResourceManager.java |
125:131 160:166 96:102 91:97 99:105 | view |
| 6 | x 2 | azure-toolkit-libs/azure...ppservice/function/coreazure-toolkit-libs/azure...egacy/function/handlers | AzureFunctionPackagerBase.javaAnnotationHandlerImpl.java |
104:110 150:156 | view |
| 6 | x 3 | azure-toolkit-libs/azure...appservice/service/implazure-toolkit-libs/azure...olkit/lib/common/entityazure-toolkit-libs/azure...ure/toolkit/lib/compute | AbstractAppService.javaAbstractAzureResource.javaAbstractAzureResource.java |
267:273 83:89 111:117 | view |