Top 6 Java no-dependency Projects

Doma 2

0 413 9.3 Java

DAO oriented database mapping framework for Java 8+
dominion-ecs-java

13 276 7.1 Java

Insanely fast ECS (Entity Component System) for Java

Project mention: Dominion ECS - the Release Candidate is out | /r/java | 2023-05-21

You are right, I will add more info about the architecture! About which operations perform better you can already relying on the available benchmarks

InfluxDB

www.influxdata.com sponsored

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.
java-http

8 193 8.0 Java

A full featured, stand-alone, high-performance HTTP server and client written entirely in plain Java

Project mention: Netty VS java-http - a user suggested alternative | libhunt.com/r/netty | 2023-05-25

A full-featured HTTP server and client in plain Java without the use of any libraries. The client and server will use non-blocking NIO in order to provide the highest performance possible.

MineMap

7 155 0.0 Java

An efficient map viewer for Minecraft seed in a nice GUI with utilities without ever needing to install Minecraft.
simple-graphs

1 41 0.0 Java

A simple graph library for java
itu

1 21 9.1 Java

An extremely fast parser and formatter of standardized date and date-times supporting RFC-3339 (ISO-8601 profile) and more.

Project mention: JVM Profiling in Action | dev.to | 2024-04-18

Now that the JSON parsing time has decreased, we see that timestamp parsing, specifically java/time/OffsetDateTime.parse, is taking a significant amount of the total parsing time. Java's built-in timestamp parsing is notoriously slow. Luckily, a faster alternative exists: https://github.com/ethlo/itu.

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).