Java™ Community

If you know where such versions are located, please link here. I can't seem to find it anywhere and don't want to install the one bundled with oracle jdk because I already have openjdk installed on my system.

SCOTUS decided that Google's particular use of the Java SE API is permitted by the fair use doctrine.

"The goal of this project is to create a micro web framework in Java that should be easy to use and hack. Pippo can be used in small and medium applications and also in applications based on micro services architecture."

If you feel like the New Year just came, and you missed the first half of January, then all this time you've been busy looking for tricky bugs in the code you maintain. It also means that our article is what you need. PVS-Studio has checked the ELKI open source project to show you errors that may occur in the code, how cunningly they can hide there, and how you can deal with them.

The New Year is steadily approaching, therefore it's time to sum everything up. Continuing the tradition, we thought back to our articles about checking Java projects from the open-source world for this year and rated the top 10 most exciting bugs.

A curated list of awesome frameworks, libraries and software for the Java programming language.

Applications used in the field of Big Data process huge amounts of information, and this often happens in real time. Naturally, such applications must be highly reliable so that no error in the code can interfere with data processing. To achieve high reliability, one needs to keep a wary eye on the code quality of projects developed for this area. The PVS-Studio static analyzer is one of the solutions to this problem. Today, the Apache Flink project developed by the Apache Software Foundation, one of the leaders in the Big Data software market, was chosen as a test subject for the analyzer.

Say I want a class called "com.mysql.cj.jdbc.Driver" but I don't know what Gradle or Maven dependency contains it. Is there a place I can just type in the full class name and get results on what publicly available JVM packages contain it? Googling a lot these class names don't return much useful information on where I can go to import it into my project.

WildFly (formerly known as JBoss Application Server) is an open-source JavaEE application server developed and first released by JBoss in February, 2008. The primary goal of the project is to provide a set of tools usually required for enterprise Java applications. And since the server is used for developing enterprise applications, it is especially important to minimize the number of bugs and potential vulnerabilities in its code. Today, WildFly is being developed by the large company Red Hat, and they keep the code quality at a pretty high level. That said, our analyzer was still able to find a number of programming mistakes in the project.

XMage is a client-server application for playing Magic: The Gathering (MTG). XMage's development was started in early 2010. Since then, it has seen 182 releases, attracted an army of contributors, and it's still being actively developed even now. All that makes it a good reason for us to contribute to its development too! So, today the PVS-Studio unicorn is going to check the code base of XMage and maybe even get into a fight with some entities.

To keep it interesting, this time I'd like to tell about our approach to developing and polishing diagnostic rules for PVS-Studio Java. You will learn how we keep existing warnings consistent across releases and why the new ones aren't too weird. I'll also share a bit of inside information on what plans we, the Java team, have for the future, and show you a few interesting (and a few plain) bugs we found using the diagnostics from the upcoming release.

2019 was a very busy year in terms of conferences. Our team could leave for whole weeks on business trips. As you know, the conference is perfect time to share knowledge. In addition to giving talks and telling many interesting things at our booth, we also learned a lot from communicating with conference participants and speakers. So at the Joker 2019 conference in fall, a talk from Dalia Abo Sheasha "Migrating beyond Java 8" inspired us to implement a new diagnostic rule that allows us to detect incompatibilities in the Java SE API between different versions of Java. This is what we will talk about.

Since swing doesn’t use traditional mvc where would you put the database interaction code?

This time, the PVS-Studio team's attention was attracted by Ghidra, a big bad reverse-engineering framework allowing developers to analyze binary files and do horrible things to them. The most remarkable fact about it is not even that it's free and easily extensible with plugins but that it was developed and uploaded to GitHub for public access by NSA. On the one hand, you bet NSA has enough resources for keeping their code base clean. On the other hand, new contributors, who are not well familiar with it, may have accidentally introduced bugs that could stay unnoticed. So, we decided to feed the project to our static analyzer and see if it has any code issues.

fastThread is a tool that will parse and analyze thread dumps written in any language that runs on the JVM: https://fastthread.io/

Today I learned how to pass a table of parameters into a stored procedure in MS SQL Server, using Java / JDBC.

Been experimenting with lsp-java in emacs to develop. So many improvements in the last year that it may eventually replace my Intellij setup.