Integration of Java Generics Into The jmle Tool Within The Eclipse IDE

1
Integration of Java Generics Into The jmle Tool
Within The Eclipse IDE

• Adrian Kostrubiak, 10/7/08

2
Overview

• JML and jmle Review
• Article Review
• JML notations and tools supporting detailed
  design in Java
• An overview of JML tools and applications
• JACK A Java Constraint Kit
• jmle A tool for executing JML speci?cations via
  constraint programming
• Executing JML Specifications of Java Card
  Applications A Case Study.
• Technology Exposé

3
JML Review

• Exists in annotations before code modules
• Behavioral interface specification language
• Formally specify module behavior
• Java Modeling Language
• Design by Contract (DbC)
• Java style syntax

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JML Example Code

• /_at_ assignable \nothing
• ensures \result j k /
• int sumOfTwo(int j, int k) return(jk)
• // can only be called with ints gt 0
• /_at_ assignable myVal
• requires j gt 0
• ensures myVal \old(myVal) - j /
• void subtract(int j) myVal myVal - j

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jmle Review

• jmle
• Takes code with JML embedded (comments)
• Creates a Java constraint program
• Executed with the Java Constraint Kit
• jmle in Eclipse
• Program itself not run
• Runs constraint program
• Eases checking and understanding of constraints

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Moving Forward With jmle

• Currently little generic support in JML and none
  in jmle
• Implementing generics into jmle
• Implementing enum types into jmle
• Push jmle from mere academic pursuit into actual
  industry

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Article Review

• G. T. Leavens, K. R. M. Leino, E. Poll, C. Ruby,
  and B. Jacobs. JML notations and tools
  supporting detailed design in Java. In OOPSLA
  2000 Companion, Minneapolis, Minnesota, pages
  105106. ACM, Oct. 2000.

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Article Review

• L. Burdy, Y. Cheon, D. Cok, M. Ernst, J. Kiniry,
  G. T. Leavens, K. Rustan, M. Leino, and E. Poll.
  An overview of JML tools and applications.
  International Journal on Software Tools for
  Technology Transfer, 7(3)212-232, June 2005.

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Article Review

• S. Abdennadher, E. Krämer, M. Saft and M.
  Schmauss. JACK A Java Constraint Kit. In
  Electronic Notes For Theoretical Computer
  Science, volume 64, pages 1-17. September 2002.

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Article Review

• B. Krause and T. Wahls. jmle A tool for
  executing JML speci?cations via constraint
  programming. In L. Brim, editor, Formal Methods
  for Industrial Critical Systems (FMICS 06),
  volume 4346 of Lecture Notes in Computer Science,
  pages 293 296. Springer-Verlag, August 2006.

11
Article Review

• N. Cantaño, T. Wahls. Executing JML
  Specifications of Java Card Applications A Case
  Study.

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Technology Exposé

• And now, jmle in action!