InfoQ Homepage Debugging Content on InfoQ
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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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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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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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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.
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Five Orcas Short Demos
Microsoft's Data blog has five short demos on Orcas and post-Orcas features for editing XML files and XSD files, debugging XSLT, and working with Entity Data Models (EDM).
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Deep Support for Oracle in Visual Studio
Visual Studio has had some support for SQL Server for quite some time, but that does not help the developers who are targeting Oracle. Fortunately Oracle has taken steps to address this by releasing Oracle Developer Tools for Visual Studio .NET.
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Effective Java Exceptions
A new article by Barry Ruzek on BEA's dev2dev site discusses the use of exceptions in Java and proposes a way of thinking about exceptions to help guide when to use checked versus unchecked exceptions. It separates exceptional conditions into faults and contingencies and describes how to handle each.
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Debugging Tools: Hawkeye
If you ever needed to take a peek at a running application, you know that the debugger can be overkill, especially if the source code isn't available. With Corneliu Tusnea's Hawkeye, you can take a peek and even tweak a few things in an easy to use GUI.
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DTrace: Dynamic Tracing with a Java API
DTrace is an open-source dynamic tracing framework originally written for Solaris 10 and coming soon to OS X, Linux and BSD systems. A Java API for DTrace is available, allowing you to run DTrace scripts and allowing you to present the output in a more meaningful way.
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Current Status of Java Static Analysis Tools
Static analysis tools help developers locate potential problems in their code. Static analysis is an inspection of code without executing it, looking for problems as varied as misunderstood APIs to use of the wrong boolean operators. This post summarizes the six of the leading tools and discusses the current trends in static analysis tools.
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TestDriven.NET 2.0 released
TestDriven.NET 2.0 was released last week. TestDriven.NET 2.0 supports the TDD framework and supports all version of Visual Studio .NET. TestDriven.NET is a Visual Studio plug-in providing support for Nunit, MBUnit, and Visual Studio Team System.