InfoQ Homepage Debugging Content on InfoQ
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Google Singleton Detector
Google has released a tool that performs bytecode analysis in order to locate and report on Singletons within bytecode. Although the tool has limitations, it is one way to detect a pattern that many see as controversial.
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A case study of Apache peer/code review processes
Peter C. Rigby and Daniel M. German have released a case study of peer/code review processes used at Apache which looks at the types of reviews, frequency of them, and other characteristics. Although some question the data collection methodology, the papers offer an interesting set of discussions comparing and contrasting various review methodologies.
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Article: Implementing Automated Governance for Coding Standards
Most development organizations of a significant size have some form of coding standards and best practices. Simply documenting these standards and keeping them up to date can be a significant challenge and enforcing them even harder. Our organization has found that enforcing coding standards and best practices in an automated fashion through our build process has been highly effective.
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PMD: Automated source code analysis and bug detection
PMD, an open-source automated Java source code analysis and bug detection tool, recently reached version 4.0. InfoQ spoke with Tom Copeland, PMD project lead, to learn more about PMD and what capabilities it provides.
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Rubinius Internals: Threading, ObjectSpace, Debugging
We continue the interview with Rubinius creator Evan Phoenix and talk about internals of how the VM uses bytecode manipulation for fast debugging, problems of implementing ObjectSpace and Threading.
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WebLOAD: Commercial Load Testing Tool Recently Open Sourced
WebLOAD is a load testing tool from Radview that tests both for performance and also correctness. Test scripts are written in Javascript and the tool supports multiple protocols for testing all tiers of an app such as web (HTTP with Ajax support), SOAP/XML, and other protocols. This past April Radview released an open source community edition of WebLOAD under GPL, available at webload.org.
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Presentation: Code Organization Guidelines for Large Code Bases
Structuring a large code base maintained by multiple teams working in parallel can be a real challenge. If you are not disciplined about code structure overtime you will end up with a tangled, unmaintainable mess. In this session Juergen Hoeller provides general guidelines on packaging and package interdependencies, layering and module decomposition, and evolving a large code base.
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Google SoC Series: dcov - Ruby documentation coverage analyzer
Ruby gains another tool to ensure code quality: dcov analyses Ruby code and determines the documentation coverage. We caught up with dcov developer Jeremy McAnally to talk about his plans.
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Test Dozens of Browsers All At Once
A new project called Browsershots allows web designers to see what their site looks like in a multitude of browsers and platforms with a trivial amount of effort.
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Article: Implementing Exceptions in SOA
In an InfoQ article, Boris Lublinsky highlights the problems with exception handling in SOA, and suggests applying SOA principles to exception handling as a solution.
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InfoQ Article: The MOle Plugin
The MOle, so named because it acts as the investigators agent, is a plugin that provides insight into the inner workings of Ruby on Rails in realtime, as requests come in and get processed. The author describes how the plugin came about and gives InfoQ readers a detailed introduction to his innovative plugin.
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Coverity Prevent SQS: Java Static Analysis Defect Detection
The Java static-analysis defect detection space got a new entrant this week with Coverity's release of Prevent SQS, a code analysis tool that analyzes byte code, and builds an interal map of all possible execution paths upon which interprocedural defect analysis is done to find problems that lead to runtime exceptions, security vulnerabilities, unpredictable behavior, and performance degradation.
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Using Dtrace to Improve Rails Performance
InfoQ investigates how three companies recently collaborated to use DTrace, a powerful open source process introspection tool, to find and fix a substantial Rails latency issue.
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Google SoC Series: ANTLR v3 Ruby Parser
Writing a Ruby parser is a challenging task, yet the XRuby team wrote one from scratch. A Google Summer of Code project will update the current parser to use ANTLR v3, and plans to produce a Ruby parser in Ruby in the process. InfoQ caught up with Wang Haofei to ask about the problems in parsing Ruby and the plans for the project.
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Google SoC Series: Web-based Rails Debugger
Rails exception stack traces in the browser are a common sight for Rails developers (and sometimes users). A Google Summer of Code project aims to speed up Rails debugging by giving the developer a web-based, interactive shell to investigate the system after an exception happened. InfoQ caught up with Eugen Minciu, the developer of the project, to see what he's planning.