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
- 5% duplication:
- 12,755 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 656 duplicated lines
- 34 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
stetho-okhttp/src/main (91%)
--> stetho-okhttp3/src/main (91%)
304
1 file pair
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| stetho-okhttp/src/main (91%) --> stetho-okhttp3/src/main (91%) |
304 | 1 file pair | details... |
Longest Duplicates
The list of 34 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 73 | x 2 | stetho-okhttp/src/main/j.../facebook/stetho/okhttpstetho-okhttp3/src/main/...facebook/stetho/okhttp3 | 43:144 (43%)35:136 (43%) | view | |
| 33 | x 2 | stetho-okhttp/src/main/j.../facebook/stetho/okhttpstetho-okhttp3/src/main/...facebook/stetho/okhttp3 | 148:195 (19%)140:187 (19%) | view | |
| 26 | x 2 | stetho-okhttp/src/main/j.../facebook/stetho/okhttpstetho-okhttp3/src/main/...facebook/stetho/okhttp3 | 240:281 (15%)232:273 (15%) | view | |
| 22 | x 2 | stetho/src/main/java/com...k/stetho/common/androidstetho/src/main/java/com...k/stetho/common/android | 77:108 (21%)68:99 (32%) | view | |
| 13 | x 2 | stetho/src/main/java/com...elements/android/windowstetho/src/main/java/com...elements/android/window | 33:49 (48%)33:48 (52%) | view | |
| 11 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 194:204 (6%)232:242 (6%) | view | |
| 11 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 49:64 (20%)33:48 (35%) | view | |
| 11 | x 2 | stetho-okhttp/src/main/j.../facebook/stetho/okhttpstetho-okhttp3/src/main/...facebook/stetho/okhttp3 | 219:236 (6%)211:228 (6%) | view | |
| 10 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 25:38 (66%)37:50 (43%) | view | |
| 9 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 160:168 (5%)194:202 (5%) | view | |
| 9 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 66:77 (16%)50:61 (29%) | view | |
| 9 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 160:168 (5%)232:240 (5%) | view | |
| 9 | x 2 | stetho-okhttp/src/main/j.../facebook/stetho/okhttpstetho-okhttp3/src/main/...facebook/stetho/okhttp3 | 203:215 (5%)195:207 (5%) | view | |
| 8 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 49:59 (14%)66:76 (14%) | view | |
| 8 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 66:76 (14%)33:43 (25%) | view | |
| 8 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 33:43 (25%)50:60 (25%) | view | |
| 8 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 123:133 (9%)140:150 (9%) | view | |
| 8 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 241:251 (3%)360:370 (3%) | view | |
| 8 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 49:59 (14%)50:60 (25%) | view | |
| 7 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 130:136 (4%)194:200 (4%) | view | |
| 7 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 130:136 (4%)232:238 (4%) | view | |
| 7 | x 2 | stetho/src/main/java/com...k/stetho/common/androidstetho/src/main/java/com...k/stetho/common/android | 41:51 (6%)32:42 (10%) | view | |
| 7 | x 2 | stetho/src/main/java/com...tetho/inspector/networkstetho/src/main/java/com...tetho/inspector/network | 18:28 (31%)16:26 (36%) | view | |
| 7 | x 2 | stetho/src/main/java/com/facebook/stetho/commonstetho/src/main/java/com/facebook/stetho/common | 130:136 (4%)160:166 (4%) | view | |
| 7 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 110:119 (2%)139:148 (2%) | view | |
| 7 | x 2 | stetho/src/main/java/com...etho/inspector/elementsstetho/src/main/java/com...pector/elements/android | 53:65 (22%)154:166 (8%) | view | |
| 6 | x 2 | stetho-sample/src/debug/.../facebook/stetho/samplestetho-sample/src/debug/.../facebook/stetho/sample | 38:45 (8%)28:35 (22%) | view | |
| 6 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 142:147 (2%)204:209 (2%) | view | |
| 6 | x 2 | stetho/src/main/java/com...k/stetho/common/androidstetho/src/main/java/com...k/stetho/common/android | 59:66 (6%)135:143 (6%) | view | |
| 6 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 380:387 (2%)391:398 (2%) | view | |
| 6 | x 2 | stetho/src/main/java/com...spector/protocol/modulestetho/src/main/java/com...spector/protocol/module | 309:316 (2%)320:327 (2%) | view | |
| 6 | x 2 | stetho/src/main/java/com/facebook/stetho/dumpappstetho/src/main/java/com/facebook/stetho/dumpapp | 60:75 (16%)83:92 (4%) | view | |
| 6 | x 2 | stetho/src/main/java/com.../stetho/dumpapp/pluginsstetho/src/main/java/com.../stetho/dumpapp/plugins | 38:47 (4%)39:48 (10%) | view | |
| 6 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 37:44 (7%)32:39 (12%) | view |
Duplicated Units
The list of top 5 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 54 | x 2 | stetho-okhttp3/src/main/...facebook/stetho/okhttp3stetho-okhttp/src/main/j.../facebook/stetho/okhttp | 39:102 47:110 | view | |
| 10 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 32:45 48:61 | view | |
| 10 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...pector/elements/android | 49:62 65:78 | view | |
| 7 | x 2 | stetho/src/main/java/com...pector/elements/androidstetho/src/main/java/com...etho/inspector/elements | 56:65 41:50 | view | |
| 6 | x 2 | stetho-okhttp3/src/main/...facebook/stetho/okhttp3stetho-okhttp/src/main/j.../facebook/stetho/okhttp | 109:116 117:124 | view |