CODES: mining sourCecOde Descriptions from developeErs diScussions

Carmine Sebastiano Massimiliano GerardoVassallo Panichella Di Penta Canfora

S. Panichella, J. Aponte, M. Di Penta, A. Marcus, G. Canfora - ICPC 2012

Such communications are… unstructured usually not explicitly meant to describe specific parts of the

source code.

Example: Eclipse (Java System)

METHOD: searchMainMethods

..........................

Problem seems to come from

in org.eclipse.jdt.internal.debug.ui.launcher.

,there's a to

addSubTypes(List, IProgressMonitor,

IJavaSearchScope) if includesSubtypes flag

is ON. This add all types sub-types as soon

as the given scope encloses them without testing

if sub-types have a main !

..........................

CLASS: MainMethodSearchEngine Parameters: “ORANGE”

Keywords: “GREEN”

searchMainMethods

MainMethodSearchEngine

(IProgressMonitor,

IJavaSearchScope, boolean) cal

l

method

method

method

Method

Bug Report and Mailing List

• Step 1: Downloading SO discussions relying on

its REST interface and tracing them onto classes

• Step 2: Extracting paragraphs

• Step 3: Tracing paragraphs onto methods( Discards Paragraphs of discussions with 0 Votes)

• Step 4: Heuristic based Filtering

• Step 5: Similarity based Filtering

CODES:

Approach for Mining Method Descriptions

DEMO

http://youtu.be/Rnc5ni1AAzc

CODES Results:

System MinedDescriptions

True Positives

False Positives

Apache Lucene2.9.0

9,343(about 20% of the

Methods)

84 16

Hibernate3.5.0

10,608(about 28% of the

Methods)

91 9

We sampled 100 descriptions from each project