Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.

1. javawriter

   1 11 10,819 5.9 Java

   Discontinued A Java API for generating .java source files.

   

   Javapoet. This helped me a lot, because i wrote two generators, one for one employer, who don't like dynamic generators, so the first was to generate mappers like mapstruct does; from model to pojos and viceversa. The second one was a static testing pojo factory generator; this last one i made public (it's pretty basic and now we have projects like instancio and podam) its name is mother-factory.

2. Stream

   getstream.io featured

   Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

   

3. picocli

   2 32 5,151 8.0 Java

   Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.

   

   Picocli is a pretty good one for writing CLI apps

4. record-builder

   3 36 837 8.1 Java

   Record builder generator for Java records

   

   Record builder is pretty good for making builders for your Java 17 records

5. Auto

   4 16 10,505 8.7 Java

   A collection of source code generators for Java.

   

   I like to use AutoService to make using Java's ServiceLoader easier.

6. Error Prone

   5 18 7,004 9.7 Java

   Catch common Java mistakes as compile-time errors

   

   error-prone is good for some extra static analysis.

7. jqwik

   6 8 609 8.4 Java

   Property-Based Testing on the JUnit Platform

   

8. JavaCPP

   7 8 4,614 6.0 Java

   The missing bridge between Java and native C++

   

   JavaCPP and presets for working with JNI

9. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

10. javacpp-presets

    8 9 2,760 7.7 Java

    The missing Java distribution of native C++ libraries

    

    JavaCPP and presets for working with JNI

11. afterburner.fx

    9 1 10 2.9 Java

    The Opinionated Un-Framework For Java FX Applications (by dlsc-software-consulting-gmbh)

    

    Afterburner.fx for FXML loading and dependency injection in JavaFX

12. atlantafx

    10 15 1,070 3.8 Java

    Modern JavaFX CSS theme collection with additional controls.

    

    AtlantaFX & CSSFX for styling in JavaFX

13. cssfx

    11 2 166 0.0 Java

    Allow runtime modification of JavaFX CSS (by McFoggy)

    

    AtlantaFX & CSSFX for styling in JavaFX

14. Disruptor

    12 34 17,896 5.9 Java

    High Performance Inter-Thread Messaging Library

    

    Disruptor for inter-thread messaging

15. jmh

    13 29 2,439 6.8 Java

    https://openjdk.org/projects/code-tools/jmh

    

    JMH for benchmarks

16. awesome-java

    14 1 130 5.3

    A curated list of awesome Java libraries (by pditommaso)

    

17. Jackson JSON Processor

    15 28 9,426 4.7

    Main Portal page for the Jackson project

    

    Jackson. Because JSON.

18. jOOQ

    16 100 6,443 9.8 Java

    jOOQ is the best way to write SQL in Java

    

    JOOQ. I love this one; its very very useful when you don't need/like any ORM, and it works with, for example Spring JDBC, so you don't have to write directly the SQL into Strings. The generator helps you with all the DAO layer, and if you want it generates JPA Models too.

19. Jimfs

    17 5 2,492 7.8 Java

    An in-memory file system for Java 7+

    

    Recently been using JIMFS. Made my tests much faster and cleaner!

20. instancio

    18 7 1,041 9.5 Java

    A library that creates fully populated objects for your unit tests.

    

    Instancio for generating test data AssertJ Awaitility Quarkus FluentJdbc: a thin wrapper around jdbc, you can use it as an alternative for JPA and I use it in Quarkus

21. Agrona

    19 5 3,037 9.5 Java

    High Performance data structures and utility methods for Java

    

    Aeron for low latency apps and Agrona is you're using Aeron for data structures

22. methanol

    20 3 276 8.9 Java

    ⚗️ Lightweight HTTP extensions for Java & Kotlin

    

    Methanol - Lightweight HTTP extensions for Java: https://github.com/mizosoft/methanol

23. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

Suggest a related project