Checkstyle
JDK
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Checkstyle | JDK | |
---|---|---|
15 | 191 | |
8,132 | 18,393 | |
0.8% | 2.4% | |
9.9 | 10.0 | |
about 18 hours ago | 1 day ago | |
Java | Java | |
GNU Lesser General Public License v3.0 only | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Checkstyle
- 5 easy paths to become a recognized Java expert. Really. For free.
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Java Checkstyle reports formatting as a warning, not an error despite my explicit severity
I'm trying to use Google's checkstyle. I want certain things to be an error, such as using Tabs for indentation. When I run mvn checkstyle:check with a file with a tab in the first column, it always gives a [WARN] rather than the error that I've asked for. Pom snippet: org.apache.maven.plugins maven-surefire-plugin ${maven-surefire-plugin.version} ${maven-surefire-plugin.skipUnitTests} org.apache.maven.plugins maven-checkstyle-plugin 3.1.2 checkstyle validate check google_checks.xml UTF-8 true true warning true I'm using google_checks.xml as from https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/google_checks.xml. I have changed the severity for the FileTabCharacter to "error"
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How does Apache ShardingSphere standardize and format code? We use Spotless
1. Conflicts between Spotless and Checkstyle Checkstyle is a tool for checking Java source code for compliance with code standards or a set of validation rules (best practices).
- Checkstyle - development tool to help programmers write Java code that adheres to a coding standard.
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Seriously who cares about the warnings
Never had anything like that though for four years my life revolved around getting PMD, checkstyle and Sonar rules to pass so my pull request would merge.
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Code smell plugin
PMD, and checkstyle as well.
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How can I help my partner write better code?
I’m a little out of date with Java, but I believe Checkstyle is currently popular: https://github.com/checkstyle/checkstyle
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Why You Need Static Code Analysis
Another example can be applied to code quality itself. Most static analyzers are configurable. If you tried to set Checkstyle Google configuration to the mature project, you would probably get hundreds or even thousands of errors. You can start with just one rule. Ar first glance, it seems not so important. But after the moment when the configuration reaches the repository, you can be sure that no one else can violate this rule in the future.
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I have made a list of 55 plus open source software list for doing various tasks
Checkstyle: a tool that helps programmers write Java code that adheres to a coding standard: https://github.com/checkstyle/checkstyle
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Java formatter
So I was there once, sharing my solution. For my current project I use the java formatter jar, but on my previous work I was using checkstyle, you can get it from here: Checkstyle. Then pass your checkstyle xml format config.
JDK
- JEP draft: Exception handling in switch
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Java 23: The New Features Are Officially Announced
Completely gutted from the OpenJDK, last I checked. See here for the culprit PR: https://github.com/openjdk/jdk/pull/18688
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macOS 14.4 might break Java on your machine
> Yes, they're changing one aspect of signal handler use to work around this problem. They're not stopping the use of signal handlers in general. Hotspot continues to use signals for efficiency in general. See https://github.com/openjdk/jdk/blob/9059727df135dc90311bd476...
This whole thread is about SIGSEGV, and specifically their SIGSEGV handling. However, catching normal signals is not about efficiency.
Some of their exception handling is still odd: There is no reason for a program that receives SIGILL to ever attempt continuing. But others is fine, like catching SIGFPE to just forward an exception to the calling code.
(Sure, you could construct an argument to say that this is for efficiency if you considered the alternative to be implementing floating point in software so that all exceptions exist in user-space, but hardware floating point is the norm and such alternative would be wholly unreasonable.)
> The wonderful thing about choosing not to care about facts is having whatever opinions you want.
I appreciate the irony of you making such statement, proudly thinking that your opinion equals fact, and therefore any other opinion is not.
This discussion is nothing but subjective opinion vs. subjective opinion. Facts are (hopefully, as I can only speak for myself) inputs to both our opinions, but no opinion about "good" or "bad", "nasty" or not can ever be objective. Objective code quality does not exist.
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The Return of the Frame Pointers
I remember talking to Brendan about the PreserveFramePointer patch during my first months at Netflix in 2015. As of JDK 21, unfortunately it is no longer a general purpose solution for the JVM, because it prevents a fast path being taken for stack thawing for virtual threads: https://github.com/openjdk/jdk/blob/d32ce65781c1d7815a69ceac...
- JDK-8180450: secondary_super_cache does not scale well
- The One Billion Row Challenge
- AVX2 intrinsics for Arrays.sort methods (int, float arrays)
- A gentle introduction to two's complement
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Java JEP 461: Stream Gatherers
Map doesn't implement the Collection interface.
https://github.com/openjdk/jdk/blob/master/src/java.base/sha...
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C++23: Removing garbage collection support
C++ lets you write anything you can imagine, and the language features and standard library often facilitate that. The committee espouses the view that they want to provide many "zero [runtime] cost," abstractions. Anybody can contribute to the language, although the committee process is often slow and can be political, each release the surface area and capability of the language gets larger.
I believe Hazard Pointers are slated for C++26, and these will add a form "free later, but not quite garbage collection" to the language. There was a talk this year about using hazard pointers to implement a much faster std::shared_ptr.
It's a language with incredible depth because so many different paradigms have been implemented in it, but also has many pitfalls for new and old users because there are many different ways of solving the same problem.
I feel that in C++, more than any other language, you need to know the actual implementation under the hood to use it effectively. This means knowing not just what the language specifies, but can occaissionally require knowing what GCC or Clang generate on your particular hardware.
Many garbage collected languages are written in or have parts of their implementations in C++. See JS (https://github.com/v8/v8)and Java GC (https://github.com/openjdk/jdk/tree/36de19d4622e38b6c00644b0...)
I am not an expert on Java (or C++), so if someone knows better or can add more please correct me.
What are some alternatives?
spotless - Keep your code spotless
Graal - GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀
SonarQube - Continuous Inspection
aircraft - The A32NX & A380X Project are community driven open source projects to create free Airbus aircraft in Microsoft Flight Simulator that are as close to reality as possible.
Spotbugs - SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.
steam-runtime - A runtime environment for Steam applications
Error Prone - Catch common Java mistakes as compile-time errors
OkHttp - Square’s meticulous HTTP client for the JVM, Android, and GraalVM.
PMD - An extensible multilanguage static code analyzer.
kitten - A statically typed concatenative systems programming language.
infer - A static analyzer for Java, C, C++, and Objective-C
intellij-community - IntelliJ IDEA Community Edition & IntelliJ Platform