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Static and Adaptive Bug Fix Patterns

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Sung Kim
Sung Kim
Tecnología
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Static and Adaptive Bug Fix Patterns Jim Whitehead, Sung Kim, Kai Pan University of California, Santa Cruz
Bug and Bug Fix Patterns? ,[object Object],[object Object],[object Object]
Static and Adaptive Bug Fix Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Promise of Bug and Fix Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object]
Talk Overview ,[object Object],[object Object],[object Object],[object Object]
Retrieving Bug Fix Changes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bug-introducing and bug-fix changes Development history of foo.java SCM log message: “Bug #567 fixed” “ bug fix” Bug #567 entered into issue tracking system (bug finally observed and recorded) Software change that introduces the bug “bug-introducing”
Commits, Transactions & Configurations transactions configurations CVS file commits Added feature X Fixed null ptr bug Modified button text Added feature Y log message
Hunks, and Hunk Pairs Revision n-1 (has bug hunks) Revision n (has fix hunks) modification addition deletion added hunk hunk pair type deleted hunk empty deleted hunk empty added hunk
Kenyon Processing SCM Repository Filesystem Extract Automated configuration extraction Save Persist gathered metrics & facts Kenyon Repository (RDBMS/ Hibernate) Analyze Query DB, add new facts Analysis Software (e.g., IVA) Compute Fact extraction (metrics, static analysis) Kenyon
Static Bug Fix Patterns
Static Bug Patterns ,[object Object],[object Object],[object Object],[object Object]
Example Pattern ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Static Bug Fix Pattern Categories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
If Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Method Call Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sequence Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Loop and Assignment Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Switch and Try Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Method Declaration and Class Field Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ignored Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Evolutionary Pattern Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],535 2,962 Scarab 557 1,190 JEdit 2,807 6,394 Eclipse 797 2,362 Columba 1,310 4,685 ArgoUML Bug Fixes Revisions Project
Pattern Coverage ,[object Object]
Frequency of pattern categories 6.7% 8.7% 7.0% 8.4% 7.6% Class field 16.6% 13.4% 13.2% 17.2% 16.2% Method declaration 1.4% 1.0% 2.6% 1.9% 1.0% Try 0.0% 0.6% 1.6% 0.3% 0.0% Switch 7.4% 8.4% 6.4% 7.6% 8.6% Assignment 1.4% 1.6% 2.2% 0.8% 1.9% Loop 9.5% 13.5% 6.5% 17.5% 9.7% Sequence 33.9% 22.2% 26.5% 26.2% 30.3% Method call 23.0% 30.5% 34.0% 20.0% 23.2% If-related Scarab JEdit Eclipse Columba ArgoUML Category
Cross project similarity ,[object Object],[object Object],1 0.92 0.89 0.93 0.99 Scarab 0.92 1 0.94 0.87 0.93 JEdit 0.89 0.94 1 0.76 0.89 Eclipse 0.93 0.87 0.76 1 0.94 Columba 0.99 0.93 0.89 0.94 1 ArgoUML Scarab JEdit Eclipse Columba ArgoUML
Most frequent individual patterns ,[object Object],11.0% 13.1% 18.7% 7.0% 10.9% Change of if condition expression 26.1% 15.1% 18.0% 19.9% 24.0% Method call with different actual parameters Scarab JEdit Eclipse Columba ArgoUML Pattern
Diving into if conditionals ,[object Object],21.0% 15.1% 14.6% Decreased number of operators 38.0% 22.3% 22.4% Increased number of operators 15.1% 9.7% 12.0% Removed existing variable 23.7% 14.3% 8.3% Added new variable 11.2% 6.9% 11.5% Removed condition clause 23.1% 20.8% 13.1% Added condition clause JEdit Eclipse ArgoUML
Static Pattern Summary ,[object Object],[object Object],[object Object],[object Object]
[object Object]
Project-Specific Bug Fix Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Detecting Non-Static Patterns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Adaptive Patterns ,[object Object],[object Object],[object Object]
Process for Abstracting Code ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Raw Component Extraction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Component Extraction Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],if >= && . . foo flag 5 foo ready()
Normalization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Information Filtering Goal ,[object Object],[object Object],[object Object],[object Object]
Information Filtering Approach ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Diff Filtering and Storing Memories ,[object Object],[object Object],[object Object],[object Object],[object Object]
Searching the Memory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
True and False Positives Build memories based on transaction 1 .. n-1 …… False positive half hit, if found True positive half hit, if found Transaction 1 .. n-1 Memories Non-fix change case at transaction n Fix change case at transaction n
True Positive Hit Rates
False Positive Hit Rates
True Positive and False Positive Full Hit Rates
Adaptive Pattern Discussion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Patterns Overall ,[object Object],[object Object],[object Object],Fix Non-Fix Static Adaptive Static Adaptive
Conclusion ,[object Object],[object Object],[object Object]

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Static and Adaptive Bug Fix Patterns

  • 1. Static and Adaptive Bug Fix Patterns Jim Whitehead, Sung Kim, Kai Pan University of California, Santa Cruz
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  • 7. Bug-introducing and bug-fix changes Development history of foo.java SCM log message: “Bug #567 fixed” “ bug fix” Bug #567 entered into issue tracking system (bug finally observed and recorded) Software change that introduces the bug “bug-introducing”
  • 8. Commits, Transactions & Configurations transactions configurations CVS file commits Added feature X Fixed null ptr bug Modified button text Added feature Y log message
  • 9. Hunks, and Hunk Pairs Revision n-1 (has bug hunks) Revision n (has fix hunks) modification addition deletion added hunk hunk pair type deleted hunk empty deleted hunk empty added hunk
  • 10. Kenyon Processing SCM Repository Filesystem Extract Automated configuration extraction Save Persist gathered metrics & facts Kenyon Repository (RDBMS/ Hibernate) Analyze Query DB, add new facts Analysis Software (e.g., IVA) Compute Fact extraction (metrics, static analysis) Kenyon
  • 11. Static Bug Fix Patterns
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  • 24. Frequency of pattern categories 6.7% 8.7% 7.0% 8.4% 7.6% Class field 16.6% 13.4% 13.2% 17.2% 16.2% Method declaration 1.4% 1.0% 2.6% 1.9% 1.0% Try 0.0% 0.6% 1.6% 0.3% 0.0% Switch 7.4% 8.4% 6.4% 7.6% 8.6% Assignment 1.4% 1.6% 2.2% 0.8% 1.9% Loop 9.5% 13.5% 6.5% 17.5% 9.7% Sequence 33.9% 22.2% 26.5% 26.2% 30.3% Method call 23.0% 30.5% 34.0% 20.0% 23.2% If-related Scarab JEdit Eclipse Columba ArgoUML Category
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  • 42. True and False Positives Build memories based on transaction 1 .. n-1 …… False positive half hit, if found True positive half hit, if found Transaction 1 .. n-1 Memories Non-fix change case at transaction n Fix change case at transaction n
  • 45. True Positive and False Positive Full Hit Rates
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  • 48.