Preemptive Error Detection with FindBugsAlbert Guo

junyuo@gmail.com

Agenda

• What is FindBugs

• Bug Categories

• How to use FindBugs

• Bugs Detection Process

• FindBugs Analysis Report

What is FindBugs

• FindBugs uses the Apache BCEL library to analyze the classes in your application and detect potential bugs.

• FindBugs rules (or "detectors") use a variety of inspection techniques, from examining the structure of the class right through to studying the detailed dataflow through the class.

• In addition to the detectors provided by FindBugs, with a bit of work, you can write your own custom-built detectors.

• http://findbugs.sourceforge.net/

Bug Categories

Bug Categories – cont.

How to use FindBugs

In practice, the standalone application is rarely used: developers prefer to be able to invoke FindBugs directly from within their work environment.

In practice, the standalone application is rarely used: developers prefer to be able to invoke FindBugs directly from within their work environment.

Bugs Detection Process http://findbugs.sourceforge.net/

Execute ant scriptExecute ant script

Bugs Detection Process – Author Ant Build Script

projectFile can be generated via GUI tool.http://0rz.tw/584k0 Get further info: http://0rz.tw/ed4mX  

projectFile can be generated via GUI tool.http://0rz.tw/584k0 Get further info: http://0rz.tw/ed4mX  

Build.xml

Attach.Attach.

Bugs Detection Process – Generate Bug Reports

….

FindBugs Analysis Report

FindBugs Analysis Report – cont.

FindBugs Analysis Report – cont.