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Java Utility Libraries

Libraries that provide a broad set of core utilities, extensions, and helper functions to enhance Java programming, complementing the native Java API.

27 projects

11,139 contributors

$845M

Knative

Knative is an Open-Source Enterprise-level solution to build Serverless and Event Driven Applications.

Contributors

3,694

Organizations

978

Software value

$749M

Guava

Guava is Google's core Java libraries that include new collection types, immutable collections, a graph library, utilities for concurrency, I/O, hashing, caching, primitives, strings, and more. It provides production-quality implementations of commonly used data structures and algorithms.

Contributors

2,541

Organizations

625

Software value

$29M

Reactor Core

Reactor Core is a foundational library for building reactive applications on the JVM, providing non-blocking message-passing and backpressure support through reactive streams. It implements the Reactive Streams specification and offers composable asynchronous sequence APIs through its Flux and Mono types.

Contributors

1,329

Organizations

296

Software value

$12M

Apache Commons Lang

Apache Commons Lang is a Java library that provides helper utilities for the java.lang API, particularly for string manipulation, numerical methods, object reflection, concurrency, creation and serialization. It aims to be a standardized, well-tested set of utility classes and methods that complement Java's built-in functionality.

Contributors

871

Organizations

189

Software value

$4.1M

Typesafe Config

configuration library for JVM languages using HOCON files

Contributors

821

Organizations

270

Software value

$749K

XWiki Platform

XWiki Platform is an open source enterprise wiki and web application platform written in Java. It provides a full-featured wiki engine that allows users to create, organize and share content collaboratively. The platform includes features like WYSIWYG editing, structured data, permissions management, extensions, and scripting capabilities.

Contributors

575

Organizations

50

Software value

$43M

JCommander

Command line parsing framework for Java

Contributors

569

Organizations

178

Software value

$1.7M

Apache Commons IO

Apache Commons IO

Contributors

341

Organizations

79

Software value

$2.3M

Apache Commons Collections

Apache Commons Collections

Contributors

262

Organizations

56

Software value

$2.7M

Apache Commons Codec

Apache Commons Codec is a Java library that provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URL encoders. It offers both simple-to-use interfaces and more advanced functionality for handling various encoding schemes used in network transmission and application development.

Contributors

136

Organizations

39

Software value

$1.2M

Apache Commons Validator

Apache Commons Validator

This project hasn't been onboarded to LFX Insights.

Commons CLI

Apache Commons CLI

This project hasn't been onboarded to LFX Insights.

Commons Configuration

Apache Commons Configuration

This project hasn't been onboarded to LFX Insights.

Commons Logging

Apache Commons Logging

This project hasn't been onboarded to LFX Insights.

Commons Pool

Apache Commons Pool

This project hasn't been onboarded to LFX Insights.

Commons Text

Apache Commons Text

This project hasn't been onboarded to LFX Insights.

FastUtil

fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.

This project hasn't been onboarded to LFX Insights.

Hibernate Types

The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

This project hasn't been onboarded to LFX Insights.

Hutool

🍬A set of tools that keep Java sweet.

This project hasn't been onboarded to LFX Insights.

Picocli

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.

This project hasn't been onboarded to LFX Insights.

Simple Java Mail

Simple API, Complex Emails (Jakarta Mail smtp wrapper)

This project hasn't been onboarded to LFX Insights.

TransmittableThreadLocal

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

This project hasn't been onboarded to LFX Insights.

java-time

Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.

This project hasn't been onboarded to LFX Insights.

util

Wonderful reusable code from Twitter

This project hasn't been onboarded to LFX Insights.
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