# LeonardoZ/java-concurrency-patterns

Concurrency Patterns and features found in Java, through multithreaded programming. Threads, Locks, Atomics and more.

Repository: https://github.com/LeonardoZ/java-concurrency-patterns
Canonical: https://ross.abutalabs.com/products/java-concurrency-patterns
Language: Java
License: MIT
License Family: permissive
Last push: 2026-04-09T14:12:06+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 76, release rhythm 35, longevity 100
- inputs: {"age_days": 3157, "days_push": 146, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1613, forks 333 (observed 2026-08-28T04:05:11.143693+00:00)

## What it is
A collection of annotated Java example code demonstrating concurrency patterns and features, including threads, locks, synchronizers, concurrent collections, and executors. It serves as a hands-on tutorial for learning multithreaded programming in Java.

## Use cases
- learn java multithreading with examples
- understand locks and synchronizers in java
- see how executors and thread pools work
- study concurrent collections like concurrenthashmap
- reference concurrency patterns while writing thread-safe code
- prepare for java concurrency interview questions

## When to choose
- you are learning or teaching java concurrency concepts
- you want runnable example code for threads, locks, and executors
- you need a quick reference for java.util.concurrent features

## When to avoid
- you need a production concurrency library or framework
- you want a high-level abstraction like akka or rxjava
- you need concurrency utilities for a language other than java

## Facets
- artifact type: learning-resource
- maturity: stable
- function: concurrency, developer-tools
- domain: developer-tools, tutorials, programming-languages
- platform: jvm, cross-platform
- tags: java, multithreading, concurrency-patterns, educational, example-code

## Member repositories
- LeonardoZ/java-concurrency-patterns (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:11.143693+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:51:04.903626+00:00, confidence not recorded.
  - readme: https://github.com/LeonardoZ/java-concurrency-patterns (fetched 2026-08-28T04:05:11.143693+00:00, sha 167361e9d35d)
- Data as of 2026-08-30T08:39:29.467469+00:00.