Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality. Learn more →
Top 16 Java Concurrency Projects
-
-
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
-
-
-
-
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
-
-
conditional
A super lightweight library that helps you to compose multiple conditional expressions and make them asynchronous easily.
-
ExcelPasswordCracker
A simple brute-force attack password cracker for Excel files with multi-threaded implementation.
-
Concurrent-Checkers-Game
Concurrent/simultaneous checkers game for up to 8 players. Built this in correspondence to https://lichess.org/simul but to play Checkers as there is no such game that exists on the WWW.
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
https://lmax-exchange.github.io/disruptor/#_what_is_the_disr.... Unfortunately IIUC writing this in Go still prevents the spin-locked acceptor thread from achieving the kind of performance you could get in a non-GC language, unless you chose to disable GC, so I'd guess Envoy is still faster.
https://gnet.host/docs/quickstart/ it's nice that you can use this simply though. Envoy is kind of tricky to setup with custom filters, so most of the time it's just a standalone binary.
[0] https://blog.envoyproxy.io/envoy-threading-model-a8d44b92231...
[1] https://lmax-exchange.github.io/disruptor/#_what_is_the_disr...
Project mention: Spark – A web micro framework for Java and Kotlin | news.ycombinator.com | 2024-02-10https://vertx.io/
It's actively maintained with full time developers, performant, supports Kotlin out of the box, and has more features?
Java 21 doesn't retrofit green threads though. Quasar [0] is a library that implemented fibers for Java and the main developer pron has joined the OpenJDK development team. All that was necessary for first party support is to make the JDK libraries yield when blocking.
Adopting async isn't impossible at all, there is very little demand for it.
[0] https://docs.paralleluniverse.co/quasar/
I feel like this misses the reason I like extension methods: discoverability.
With an extension method, I can do `object.` and my IDE will tell me what can be called on object. With a static helper method, it isn't as easy to know what is available. I need to know which helpers actually exist.
Since this doesn't have IDE support, it doesn't help discoverability. I'm not going to get nice autocomplete that shows me what is available. In fact, my IDE is going to highlight it as a bug. If I have a spelling mistake, I won't be able to easily pick it up - I'll assume it's just the normal complaint for all of these fluent extension methods.
That makes this simply syntactic sugar rather than something that actually helps me discover things more easily. It then hurts readability and navigation since I can't easily click through to get the definition of the method.
On a more general note about Java, things like this are one of the reasons I don't love the Java ecosystem. People try to change the behavior of Java in really hacky ways that don't work well. I understand that it's an attempt to overcome shortcomings in the language, but when one looks other languages it becomes clear that Java could have just evolved the language to be better. Java has lots of good things and I'm not looking to argue that. However, when I look at things like this, it makes me think that Java needs to really address the core language.
Instead, we get lots of tools like this which might be nice, but make it really hard to understand what's going on. Electronic Arts created an async/await library that'll do crazy stuff to let you do async/await style programming (https://github.com/electronicarts/ea-async). Yes, Java is doing good things with structured concurrency and Project Loom, but the point is how people keep trying to work around the language. There are so many POJO generators it isn't funny: AutoValue, Immutables, JodaBeans, Lombok, and more I'm probably forgetting. Java records don't fulfill everything (and they're at least a decade late). Java doesn't support expression trees for lambdas so libraries sometimes do crazy hacky things to make that exist.
Java is a great piece of technology, but it feels like people are often trying to overcome issues with the language through really hacky means in a way that I don't see in other languages. Java is getting better about modernizing the language, but it still feels like people are running against the language more than in other ecosystems.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Concurrency related posts
-
Too Dangerous for C++
-
JEP Draft: Deprecate Memory-Access Methods in Sun.misc.Unsafe for Removal
-
Modern Async Primitives on iOS, Android, and the Web
-
LMAX Disruptor – High Performance Inter-Thread Messaging Library
-
Disruptor 4.0.0 Released
-
Picking up Go as a Java dev—what could possibly go wrong?
-
if you had to restart at 0 knowledge what would you do?
-
A note from our sponsor - InfluxDB
www.influxdata.com | 7 May 2024
Index
What are some of the best open-source Concurrency projects in Java? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | Disruptor | 17,029 |
| 2 | Vert.x | 14,080 |
| 3 | Android-RxJava | 7,551 |
| 4 | Quasar | 4,548 |
| 5 | JCTools | 3,476 |
| 6 | ea-async | 1,362 |
| 7 | react-native-threads | 736 |
| 8 | ConcurrencyFreaks | 402 |
| 9 | java-concurrency-examples | 265 |
| 10 | lingua-franca | 209 |
| 11 | conditional | 57 |
| 12 | Composer | 19 |
| 13 | money-transfer-rest-api | 18 |
| 14 | time-series-concurrency-example | 6 |
| 15 | ExcelPasswordCracker | 5 |
| 16 | Concurrent-Checkers-Game | 4 |
Sponsored
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
www.saashub.com