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Dec 4, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Assertthat .is LessThan |BigDecimal bigDecimal |Collection recipients |Andrey Karpov
Java is famous for its widespread use in enterprise applications. Business processes need to be managed. The Flowable platform can help with that! What's more, the project is written in Java and is open source. So, we can analyze it and search for errors using PVS-Studio. Terrifying words What's in the foreword is pretty much all I can say about the project without just repeating the information on Wikipedia or the official website.
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Nov 22, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Andrey Karpov |langReflect Access |out.defaultWrite Object
Java equips developers with convenient tools for serializing objects. Although they seem primitive at first glance, their internal implementation contains a wealth of interesting insights. In this article, we'll explore the essentials of serialization and its nuances. Let's see how it operates under the hood! Introduction Java serialization is treated as a straightforward mechanism: just implement the Serializable interface, and that's it.
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Nov 14, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Andrey Karpov |Final DateFormat
Do you know what's the difference between the 'Y' and 'y' characters in the Java date pattern? In this article, we'll explore how an incorrect date format can cause an error. We'll also introduce our new V6122 diagnostic rule for Java that'll save you from sudden time travel. Introduction After dusting off our big TODO notebook, we stumbled upon a particularly interesting case. A commenter on the article highlighted the potential issue.
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Oct 16, 2024 | 
pvs-studio.com | Konstantin Volohovsky |K keyTo |Instant timeFrom |Prefix KeyFormatter.addPrefix |Andrey Karpov
Have you ever wondered what bugs might be lurking in the project source code of global companies? Don't miss the chance to spot interesting bugs detected by the PVS-Studio static analyzer in the open-source Apache Kafka project. Introduction Apache Kafka is a well-known open-source project that's mostly written in Java. LinkedIn developed it in 2011 as a message broker, i.e. a data pipeline for various system components. Today, it's one of the most popular solutions in its category.
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Sep 18, 2024 | 
pvs-studio.com | Konstantin Volohovsky |String storeName |String coverageName |IModel envelopeComposition Type |Andrey Karpov
Accurate and detailed maps are incredibly helpful to travelers, whether they're planning a trip trying not to get lost in the middle of nowhere. GeoServer assists in processing such data on the server side. Let's see what lurks inside this project. Geo is back Suddenly, right after I finished writing about GeoGebra, I came across GeoServer. Apparently, this prefix doesn't want to leave me yet.
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Sep 10, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Andrey Karpov |Sergey Vasiliev |Andrey Moskalev
Years pass, and projects overgrow dark spots that nobody wants to venture into—they're too tricky and prone to failure. Today, we're diving into refactoring legacy code with OOP. And we're gonna do it with a style—a modern one, of course. Foreword That's not the first time I write about "OOP in real-life cases" — it's literally the title of one of my past articles (I partially touched on the topic here as well). There, I focused on how to use behavioral patterns.
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Aug 14, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Kirill Epifanov |block.getStatements .add |CtElement parent |Andrey Karpov
Tags: #Knowledge #StaticAnalysis #Java Static analysis is a robust tool that helps developers to control code quality. Let's try to develop a simple analyzer for Lua using Java and see what's under the static analyzer hood. Small foreword We'll write the static analyzer for Lua in Java. Why Lua? Its syntax is simple, and there's no need to get bogged down in details. It's also a good language, especially compared to JavaScript. Why Java?
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Aug 9, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Andrey Karpov
We know that math is a science of precision. Can we say the same about GeoGebra, an interactive math learning software? Let's analyze the project source code using PVS-Studio! Introduction Do you remember how you learned computer science at university? All these matrix and vector multiplications, polynomial equations, interpolation, extrapolation... What if we look at these scary formulas in a real project, rather than in another lab report? What if we dig for issues in such a code base?
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Jul 31, 2024 | 
pvs-studio.com | Konstantin Volohovsky |Daniil Liakhov |String snapshotName |Value Feature.class.getName |Andrey Karpov
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Jul 12, 2024 | 
pvs-studio.com | Kirill Epifanov |Konstantin Volohovsky |String codeChallenge |Andrey Karpov
User authorization and registration are important parts of any application, not only for users but also for security. What pitfalls does the source code of a popular open-source identity management solution hide? How do they affect the application? If you've ever implemented authorization for web apps, you probably know all the frustrating issues that can arise. I'm no exception, either. Once, I implemented the messenger-based authorization in the frontend part of one project.
