NullAway
Quarkus
NullAway | Quarkus | |
---|---|---|
21 | 127 | |
3,530 | 13,107 | |
1.0% | 1.0% | |
8.9 | 10.0 | |
3 days ago | 4 days ago | |
Java | Java | |
MIT License | Apache License 2.0 |
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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.
NullAway
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What if null was an Object in Java?
Fortunately, Uber made tooling for languages with broken type systems
* https://github.com/uber/NullAway
* https://github.com/uber-go/nilaway
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My Thoughts on “Bad Code”
Some patterns arise from language design
* You can't express `T` where `null` is forbidden in the type system so you get NullPointerException everywhere and defensive null checks.
* You express a sum type as a product type because your language does not have sum types .
* Your language doesn't have first class multiple return values (or tuples) so you return extra parameters via out parameters or thread local variables such as `errno`.
* Your language doesn't have exceptions (or algebraic effects) and can't do IO so you have monad transformers.
* Your language doesn't have set-theoretic types so you need hacks like `thiserror` .
* Your language doesn't have stackful coroutines or can't infer async IO for you so you have `async/await` spam or callback hell or "mono's".
* Your language doesn't have exhaustive checks (or pattern matching) so you need a fallthrough case check on switch statements .
* Your language doesn't have algebraic effects, so you need to pass context everywhere.
I know someone will reply about Java's null annotation checking options, so here is one of them: https://github.com/uber/NullAway .
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Will Project Valhalla bring Kotlin-like nulls to Java?
If you must use Java, use Uber's Nullaway which gives null safety via Errorprone.
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Retrofitting null-safety onto Java at Meta
Does anyone have experience using this at Meta who can compare to https://github.com/uber/NullAway ?
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How to use Java Records
A special kind of validation is enforcing that record fields are not null. (Un)fortunately, records do not have any special behavior regarding nullability. You can use tools like NullAway or Error Prone to prevent null in your code in general, or you can add checks to your records:
- Backend Java 19 vs Kotlin?
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What does the future hold for Project Amber?
What do you think of https://github.com/uber/NullAway
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Plans for Compile-time Null Pointer Safety?
Take a look at NullAway, a plugin for Error Prone.
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Ask HN: What is a modern Java environment?
PMD, Spotbugs, Nullaway: Java linting/static analysis (https://pmd.github.io, https://spotbugs.github.io, https://github.com/uber/NullAway)
- Nullaway fully supports switch expressions without issues now in 0.9.5
Quarkus
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How Netflix Uses Java
Meanwhile, if you're building something smaller than Netflix, I'm writing a book just for that (https://opinionatedlaunch.com/).
It's about mobile apps, but I talk about backend at great length, especially since my background is Java. The book is called "opinionated" because I cover Quarkus (https://quarkus.io/), monolith, Fly.io, and no K8s.
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Analyze and debug Quarkus based AWS Lambda functions with X-Ray
Quarkus is a Java based framework tailored for GraalVM and HotSpot, which results in an amazingly fast boot time while having an incredibly low memory footprint. It offers near instant scale up and high density memory utilization which can be very useful for container orchestration platforms like Kubernetes or Serverless runtimes like AWS Lambda.
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Quarkus : Greener, Better, Faster, Stronger
Other useful articles related to Quarkus extension development can be found under the Writing Extensions guide category on the Quarkus.io website.
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Quarkus 3.4 - Container-first Java Stack: Install with OpenJDK 21 and Create REST API
Quarkus is one of Java frameworks for microservices development and cloud-native deployment. It is developed as container-first stack and working with GraalVM and HotSpot virtual machines (VM).
- Java 21 Released
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Java 21 makes me like Java again
If you GraalVM Native Image or one of the frameworks based on it then bootstrap cost disappears:
https://quarkus.io
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Mentorship Group
We are open to practice using any open-source project, however, we want to set a sharp focus on projects maintained by the Red Hat, and our own projects in the Caravana Cloud organization on github. If there is no reason to do differently, we'll build using technologies such as OpenShift, Quarkus, Ansible and related projects.
- Como desenvolvi um backend web em Clojure
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Is anyone using Quarkus for monoithic, full-stack web apps?
The Quarkus you are talking about is this one? https://quarkus.io/
- Quarkus 3.1.0.Final released - Programmatic creation of Reactive REST Clients, Kotlin 1.8.21 and more
What are some alternatives?
SonarQube - Continuous Inspection
ktor - Framework for quickly creating connected applications in Kotlin with minimal effort
Error Prone - Catch common Java mistakes as compile-time errors
Micronaut - Micronaut Application Framework
infer - A static analyzer for Java, C, C++, and Objective-C
helidon - Java libraries for writing microservices
Spotbugs - SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.
Spring Boot - Spring Boot
FindBugs - The new home of the FindBugs project
spring-native - Spring Native is now superseded by Spring Boot 3 official native support
Checkstyle - Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.
javalin - A simple and modern Java and Kotlin web framework [Moved to: https://github.com/javalin/javalin]