Almost everything can be done using refactoring tools: * How to get buy-in for refactoring? (use Technical Debt quantification tools) * How to identify refactoring candidates? (use smell detection tools) * How to prioritize / identify what to refactor first? (use reports from design analysis tools) * How do I identify dependencies and evaluate impact of refactoring? (use visulization tools) * How to I actually perform refactoring? (Use IDE support for automated refactoring and use them!) Deriving from a rich experience in using tools for refactoring in real-world projects, this talk takes you through a whirl-wind tour of refactoring tools (of course for Java). What's more, this talk includes quick demos of some of these tools so you can see them in action. Presented in BoJUG meetup on 19th Jan in Bangalore - https://www.meetup.com/BangaloreOpenJUG/events/257183518/ #smell #java #refactoring

1. Ganesh Samarthyam (ganesh@konfhub.com)

2. 2
Technical debt
“Technical debt is the debt that accrues
when you knowingly or unknowingly make
wrong or non-optimal design decisions”
Reference: Refatoring for Software Design Smells– Girish et al Morgan Kaufman 2014

3. 3
Why care about technical debt?
Reference: Zen and the art of software quality – Jim Highsmith Agile 2009 conference

4. 4
What constitutes technical debt?
…
Code debt
Static
analysis tool
violations
Inconsistent
coding style
Design debt
Design smells
Violations of
design rules
Test debt
Lack of tests
Inadequate
test coverage
Architecture debt
Lacking
structure (big
ball of mud)
Violation of
Architecture
Rules

5. 5
What is refactoring?
Refactoring (noun): a change
made to the internal structure of
software to make it easier to
understand and cheaper to
modify without changing its
observable behavior
Refactor (verb): to restructure
software by applying a series
of refactorings without
changing its observable
behavior

6. 6
How to improve design quality in practice?

7. 7
We need tool help

8. 8
Tools to explore
Jhawk
(Java)
CodeCity
(C++, Java, C#)
CppDepend
(C++)
Sotograph
(C++, Java, C#)
Imagix 4D
(C, C++, Java)
Lattix
(C/C++, Java, C#)
SolidSX
(C++, Java, C#)
Bauhaus
(C/C++, Java, C#)
Structure101
(Java, C#)
Understand
(C/C++, Java, C#)
Simian
(C/C++, Java, C#, …)
Jarchitect
(Java)
Ndepend
(C#)
Stan4J
(Java)
InFusion
(C/C++, Java)
InCode
(C/C++, Java)

9. 9
Structural Analysis for Java (stan4j)

10. 10
JArchitect

11. 11
InFusion/InCode

12. 12
PMD CPD

13. 13
SotoArc

14. 14
Lattix DSM

15. 15
CodeCity

16. 16
JHawk

17. 17
SolidSx

18. 18
Structure 101

19. 19
Understand

20. 20
Imagix 4D

21. 21
Bauhaus

22. 22
Eclipse IDE

23. 23
Tool links
• Structure101: https://structure101.com/
• Jarchitect: https://www.jarchitect.com/
• Designite: http://www.designite-
tools.com/DesigniteJava/
• PMD CPD: https://pmd.github.io
• Stan4J: http://stan4j.com/
• IntelliJ IDEA: https://www.jetbrains.com/idea/
• Sotograph/SotoArc:
https://www.hello2morrow.com/products/sotograph
• Lattix: https://lattix.com/
• SolidSX: http://www.solidsourceit.com/