Zenodo
Ahmad, Syed Ishtiaque
—
2024-07-26
The repo-data folder contains 53 .json files, each corresponding to one of the 53 Java open-source projects. Each file contains various metrics for methods in the project.
{
"hawtio-3976.json": {
"Age": 794,
"sloc": [11,11,11],
"slocAsItIs": [11,14,14],
"slocNoCommentPretty": [11,11,11],
"diffSizes": [0,7,0 ],
"bodychanges": [0,1,0],
"newAdditions": [0,5,0],
"isGetter": [false,false,false],
"isSetter": [false,false,false],
"changeDates": [0,3,794],
"isEssentialChange": [false,true,false],
"isBuggy": [false,false,false],
"changeTypes": ["Yintroduced","Ybodychange","Yfilerename"],
"filename": "hawtio-3976.json",
"authors": ["X","Y","Z"],
"editDistance": [0, 68, 0],
"repo": "hawtio"
},
"method_id": {...},
"method_id": {...}
}
The above method with id hawtio-3976.json has total 3 revisions which is why the array of values for a particular metric (e.g., sloc: [11,11,11]) are of length 3. Index 0 of the array represents the introduction value of a particular metric for the above method.
Description of the metrics
Age: Age of the method in days
sloc: Source line of code of a method without comment and blank lines
slocAsItIs: Source line of code of a method with comment and blank lines
slocNoCommentPretty: Source line of code pretty printed without comment and blank lines
diffSizes: Total number of lines added + removed in git diff
bodychanges: Contains value 0 or 1; where 1 implies occurrence of body change
newAdditions: Total number of lines added in git diff
isGetter: Contains true or false; where true indicates it is a get method
isSetter: Contains true or false; where true indicates it is a set method
changeDates: Contains the date difference in days from when the method was introduced. Index 0 is always 0 which indicates the introduction date
isEssentialChange: Contains true or false; where true indicates it is an essential change. Essential change includes: Ybodychange, Ymodifierchange, Yexceptionschange, Yrename, Yparameterchange, Yreturntypechange and Yparametermetachange detected by CodeShovel
isBuggy: Contains true or false; where true indicates the method bug was fixed at a particular revision
changeTypes: All transformations applied to the method at each revision. The full list of transformation that is detected by CodeShovel are: Ybodychange, Ymodifierchange, Yexceptionschange, Yrename, Yparameterchange, Yreturntypechange, Yparametermetachange, Yannotationchange, Ydocchange, Yformatchange, Yfilerename and Ymovefromfile
filename: It is the method id
bugData folder contains 53 .json files with bug information, each belonging to one of the 53 Java open-source projects. The sample JSON schema of a file is given below:
{
"hawtio-3976.json":{
"exactBug0Match": [false, false, false],
"exactBug1Match": [false, false, false],
"exactBug2Match": [false, false, false],
"exactBug3Match": [false, false, false],
"regExBug0": [false, false, false],
"regExBug1": [false, false, false],
"regExBug2": [false, false, false],
"regExBug3": [false, false, false]
},
"method_id": {...},
"method_id": {...},
}
The above method can be mapped to its metrics dataset using the method_id. For e.g., the above method with id hawtio-3976.json in bugData/hawtio.jsonthat has 3 revision can be found in the metric dataset using the same id hawtio-3976.json in the file repo-data/hawtio.json.Description of bug dataset
Each key in the above example contains value true or false indicating if a method was buggy or not at each revision. The "hawtio-3976.json method has 3 revisions (including method's introduction) which is why the array length is 3. The keys in the above json output represent bug-fix classification based on buggy keywords adopted from prior work.
We identified bug-fix commit using two approaches:
Exact case insensitive match of buggy keywords from the commit message (keys prefix wih exact represent this) Partial case insensitive substring match (using regular expression) excluding words that ends with fix or bug. (keys prefix with regEx represent this)
Bug0: This is the approach that we have used for classifying bug-fix commit. Buggy keyword list: ["error", "bug", "fixes", "fixing", "fix", "fixed", "mistake", "incorrect", "fault", "defect", "flaw"] Bug1: Same keyword list as exactBug0Match with the addition of keyword issues Bug2: Buggy keyword list from prior work: ["bug", "fix", "error", "issue", "crash", "problem", "fail", "defect", "patch"] Bug3: Buggy keyword list from prior work: ["error", "bug", "fix", "issue", "mistake", "incorrect", "fault", "defect", "flaw", "type"]
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