Showing 1425 open source projects for "java-legacy"

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  • 1
    Java Tablesaw

    Java Tablesaw

    Java dataframe and visualization library

    Tablesaw is a dataframe and visualization library that supports loading, cleaning, transforming, filtering, and summarizing data. If you work with data in Java, it may save you time and effort. Tablesaw also supports descriptive statistics and can be used to prepare data for working with machine learning libraries like Smile, Tribuo, H20.ai, DL4J. Import data from RDBMS, Excel, CSV, TSV, JSON, HTML, or Fixed Width text files, whether they are local or remote (http, S3, etc.) Tablesaw supports data visualization by providing a wrapper for the Plot.ly JavaScript plotting library. ...
    Downloads: 7 This Week
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  • 2
    JSON-java

    JSON-java

    A reference implementation of a JSON package in Java

    JSON is a light-weight language-independent data interchange format. The JSON-Java package is a reference implementation that demonstrates how to parse JSON documents into Java objects and how to generate new JSON documents from the Java classes.
    Downloads: 26 This Week
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  • 3
    TwelveMonkeys

    TwelveMonkeys

    Additional plug-ins and extensions for Java's ImageIO

    TwelveMonkeys ImageIO provides extended image file format support for the Java platform, through plugins for the javax.imageio. package. The main goal of this project is to provide support for formats not covered by the JRE itself. Support for these formats is important, to be able to read data found "in the wild", as well as to maintain access to data in legacy formats. As there is lots of legacy data out there, we see the need for open implementations of readers for popular formats.
    Downloads: 3 This Week
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  • 4
    ImGui Java

    ImGui Java

    JNI based binding for Dear ImGui

    imgui-java is a comprehensive Java binding for Dear ImGui, the popular immediate-mode GUI library used for real-time tools and debug interfaces. This binding allows Java applications—including those using LWJGL or JOGL—to leverage ImGui’s fast and flexible GUI features without switching languages. With support for native backends and OpenGL rendering, imgui-java is perfect for game engines, development tools, and editors that need an intuitive GUI system. ...
    Downloads: 11 This Week
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  • 5
    Testcontainers Java

    Testcontainers Java

    Testcontainers is a Java library that supports JUnit tests

    Testcontainers for Java is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container. Use a containerized instance of a MySQL, PostgreSQL or Oracle database to test your data access layer code for complete compatibility, but without requiring complex setup on developers' machines and safe in the knowledge that your tests will always start with a known DB state. ...
    Downloads: 5 This Week
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  • 6
    GraphQL Java Tools

    GraphQL Java Tools

    A schema-first tool for graphql-java inspired by graphql-tools for JS

    ...GraphQL Java Tools aims for seamless integration with Java, but works for any JVM language. Try it with Kotlin.
    Downloads: 6 This Week
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  • 7
    react-native-geolocation

    react-native-geolocation

    Geolocation APIs for React Native

    The Geolocation API module for React Native extends the Geolocation web spec.
    Downloads: 2 This Week
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  • 8
    Java and Spring Tutorials

    Java and Spring Tutorials

    Getting Started with Spring Boot 3

    Java and Spring Tutorials is a large-scale educational codebase that provides practical examples and tutorials covering a wide range of software development topics, primarily focused on Java and related ecosystems. It serves as a companion resource for Baeldung articles, offering real-world code implementations that demonstrate concepts such as Spring Boot, persistence frameworks, REST APIs, security, testing, and more.
    Downloads: 2 This Week
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  • 9
    commonmark-java

    commonmark-java

    Java library for parsing and rendering CommonMark (Markdown)

    Java library for parsing and rendering Markdown text according to the CommonMark specification (and some extensions). Provides classes for parsing input to an abstract syntax tree of nodes (AST), visiting and manipulating nodes, and rendering to HTML. It started out as a port of commonmark.js, but has since evolved into a full library with a nice API.
    Downloads: 0 This Week
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  • 10
    From Java To Kotlin

    From Java To Kotlin

    Your Cheat Sheet For Java To Kotlin

    From Java to Kotlin is a practical guide for Android developers transitioning existing codebases and habits from Java to idiomatic Kotlin. Rather than simply showing syntax translations, it emphasizes Kotlin’s expressive features—null safety, extensions, data classes, sealed hierarchies, and higher-order functions—and how to apply them sensibly.
    Downloads: 1 This Week
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  • 11
    Monero Java Library

    Monero Java Library

    Java library for using Monero

    A Java library for Monero transactions, enabling integration of Monero functions in Java applications.
    Downloads: 1 This Week
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  • 12
    JDA Java Discord API

    JDA Java Discord API

    Java wrapper for the popular chat & VOIP service

    JDA strives to provide a clean and full wrapping of the Discord REST api and its Websocket-Events for Java. This library is a helpful tool that provides the functionality to create a discord bot in java. Discord is currently prohibiting creation and usage of automated client accounts (AccountType.CLIENT). We have officially dropped support for client login as of version 4.2.0! Note that JDA is not a good tool to build a custom discord client as it loads all servers/guilds on startup unlike a client which does this via lazy loading instead. ...
    Downloads: 15 This Week
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  • 13
    Language support for Java for VS Code

    Language support for Java for VS Code

    Java Language Support for Visual Studio Code

    Provides Java ™ language support via Eclipse ™ JDT Language Server, which utilizes Eclipse ™ JDT, M2Eclipse and Buildship. Now that Java extension will publish platform-specific versions, it will embed a JRE for supported platforms such as win32-x64, Linux-x64, Linux-arm64, darwin-x64, and darwin-arm64. The embedded JRE is used to launch the Language Server for Java.
    Downloads: 2 This Week
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  • 14
    JaCoCo Java Code Coverage Library

    JaCoCo Java Code Coverage Library

    Java Code Coverage Library

    JaCoCo is a free code coverage library for Java, which has been created by the EclEmma team based on the lessons learned from using and integrating existing libraries for many years.
    Downloads: 1 This Week
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  • 15
    Kubernetes & OpenShift Java Client

    Kubernetes & OpenShift Java Client

    Java client for Kubernetes & OpenShift

    This client provides access to the full Kubernetes & OpenShift REST APIs via a fluent DSL.
    Downloads: 6 This Week
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  • 16
    30 Seconds of Java

    30 Seconds of Java

    Collection of reusable tested Java 21 compatible code snippets

    30 Seconds of Java is a curated collection of short, focused Java code snippets intended to teach small concepts quickly, similar to the popular “30 seconds of code” format in other languages. Each snippet is designed to be read and understood in under a minute, showing a single idea such as working with streams, handling optionals, manipulating collections, or doing common utility tasks.
    Downloads: 0 This Week
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  • 17
    Socket.IO-client Java

    Socket.IO-client Java

    A Socket.IO client library for Java

    This is the Socket.IO Client Library for Java, which is simply ported from the JavaScript client. The latest artifact is available on Maven Central. There are several ways to handle events that are transmitted between the server and the client. Add the listener function to the end of the listeners array for the event named eventName. Add a one-time listener function for the event named eventName.
    Downloads: 0 This Week
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  • 18
    OpenCorePkg

    OpenCorePkg

    OpenCore bootloader

    OpenCorePkg is an open-source, modular UEFI (Unified Extensible Firmware Interface) bootloader and development framework, primarily designed to enable macOS booting on non-Apple hardware (Hackintosh). It includes Apple-specific UEFI drivers, utilities for macOS installation support, and shared libraries used across Acidanthera projects. Apple disk image loading support. Apple keyboard input aggregation. Apple PE image signature verification. Apple UEFI secure boot supplemental code. Audio...
    Downloads: 191 This Week
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  • 19
    Fetch JSONP

    Fetch JSONP

    Make JSONP request like window.fetch

    ...The library supports custom callback parameter names, custom callback function names, and request timeouts. It also documents the difference between regular JSON APIs and JSONP endpoints, which helps avoid common syntax errors. fetch-jsonp is useful for legacy APIs, older cross-domain integrations, and browser applications that still need JSONP behavior.
    Downloads: 1 This Week
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  • 20
    Symfony PHPUnit Bridge

    Symfony PHPUnit Bridge

    Provides utilities for PHPUnit

    ...It enhances PHPUnit’s capabilities by providing better integration, including improved error reporting and test isolation. The bridge supports deprecation notices, legacy code compatibility, and automatic configuration for running tests efficiently.
    Downloads: 0 This Week
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  • 21
    pytz

    pytz

    Python historical timezone library and database

    ...With pytz, developers can convert naïve datetime objects into timezone-aware ones, shift between timezones, and safely perform arithmetic across DST boundaries with methods like localize() and normalize(). Although Python 3.9 and newer include better built-in timezone support (via zoneinfo and external packages like tzdata), pytz remains widely used—especially in legacy codebases or in environments where backward compatibility matters.
    Downloads: 9 This Week
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  • 22
    Telegram Bot Java Library

    Telegram Bot Java Library

    Java library to create bots using Telegram Bots API

    A simple-to-use library to create Telegram Bots in Java.
    Downloads: 0 This Week
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  • 23
    Recaf

    Recaf

    The modern Java bytecode editor

    ...While Recaf makes bytecode editing a more simple process it does not mean you should dive head-first into editing compiled Java applications without understanding some basic programming concepts and the Java class file architecture.
    Downloads: 306 This Week
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  • 24
    rtmp-rtsp-stream-client-java

    rtmp-rtsp-stream-client-java

    Library to stream in rtmp and rtsp for Android. All code in Java

    Library for streaming in RTMP and RTSP. All code in Java.
    Downloads: 5 This Week
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  • 25
    libzip

    libzip

    A C library for reading, creating, and modifying zip archives.

    libzip is a C library for reading, creating, and modifying zip archives. Files can be added from data buffers, files, or compressed data copied directly from other zip archives. Changes made without closing the archive can be reverted. The API is documented by man pages. libzip is fully documented via man pages. HTML versions of the man pages are on libzip.org and in the man directory. You can start with libzip(3), which lists all others. Example source code is in the examples and src...
    Downloads: 17 This Week
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