Showing 51799 open source projects for "java-legacy"

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  • 1
    Netty

    Netty

    An event-driven asynchronous network application framework

    Netty is an asynchronous, event-driven networking framework for the JVM that simplifies building high-performance clients and servers. It wraps Java NIO with a channel/handler pipeline model, enabling clean composition of codecs, TLS, and application logic with minimal overhead. Its ByteBuf abstractions, buffer pooling, and zero-copy techniques help reduce GC pressure and improve throughput under heavy I/O. Support for common protocols—HTTP/1.1, HTTP/2, WebSocket, and raw TCP/UDP—makes it a foundation for RPC frameworks, proxies, and messaging systems. ...
    Downloads: 6 This Week
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    Ruoyi-Vue-Pro
    RuoYi-Vue-Pro is an enterprise-level, full-stack admin management system based on Spring Boot and Vue 3. It features a modular architecture with RBAC permissions, multi-tenant support, workflow engine integration, monitoring, logging, and microservice compatibility. Built for scalability and maintainability, it’s designed for Chinese-speaking developers building robust backend management systems, and includes tools for user, role, and permission management, data visualization, and more.
    Downloads: 7 This Week
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  • 3
    vfox

    vfox

    A cross-platform and extendable version manager with support for Java

    If you switch between development projects which expect different environments, specifically different runtime versions or ambient libraries, or you are tired of all kinds of cumbersome environment configurations, vfox is the ideal choice for you.
    Downloads: 21 This Week
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  • 4
    RSocket

    RSocket

    Java implementation of RSocket

    Application protocol providing Reactive Streams semantics. RSocket provides a protocol for Reactive Streams semantics between client-server, and server-server communication. RSocket is a binary protocol for use on byte stream transports such as TCP, WebSockets, and Aeron. RSocket is intended to be consumed via one of the various implementation libraries which implement the RSocket Protocol. By default to make RSocket easier to use it copies the incoming Payload. Copying the payload comes at...
    Downloads: 6 This Week
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  • 5
    Arthas

    Arthas

    Alibaba Java Diagnostic Tool

    Often times, the production system network is inaccessible from the local development environment. If issues are encountered in production systems, it is impossible to use IDEs to debug the application remotely. More importantly, debugging in production environment is unacceptable, as it will suspend all the threads, resulting in the suspension of business services. Developers could always try to reproduce the same issue on the test/staging environment. However, this is tricky as some issues...
    Downloads: 6 This Week
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  • 6
    bitcoinj

    bitcoinj

    A library for working with Bitcoin

    bitcoinj is a library for working with the Bitcoin protocol. It can maintain a wallet, send/receive transactions without needing a local copy of Bitcoin Core and has many other advanced features. It's implemented in Java but can be used from any JVM compatible language, examples in Python and JavaScript are included. Highly optimized lightweight simplified payment verification (SPV) mode. In this mode, only a small part of the blockchain is downloaded, making bitcoin suitable for usage on constrained devices like smartphones or cheap virtual private servers. ...
    Downloads: 6 This Week
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  • 7
    MyBatis Mapper4

    MyBatis Mapper4

    Mybatis common mapper, easy to use

    This book starts with a simple MyBatis query to build a basic development environment for learning MyBatis. Through a comprehensive sample code and test, the basic usage of adding, deleting, modifying, and checking operations in the MyBatis XML mode and annotation mode is explained, and the application of dynamic SQL in different aspects and the best practice program in the use process are introduced. Provides a wealth of examples for MyBatis advanced mapping, stored procedures, and type...
    Downloads: 5 This Week
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  • 8
    PULSAR

    PULSAR

    Distributed pub-sub messaging system

    ...Supports isolation, authentication, authorization and quotas. Persistent message storage based on Apache BookKeeper. IO-level isolation between write and read operations. Flexible messaging models with high-level APIs for Java, Go, Python, C++, Node.js, WebSocket and C#.
    Downloads: 5 This Week
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  • 9
    ShardingSphere

    ShardingSphere

    Distributed database ecosphere

    Apache ShardingSphere is an open-source ecosystem consisted of a set of distributed database solutions, including 3 independent products, JDBC, Proxy & Sidecar (Planning). They all provide functions of data scale out, distributed transaction and distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and cloud native. Apache ShardingSphere aiming at reasonably making full use of the computation and storage capacity of existed database in distributed system, rather than a totally new database. As the cornerstone of enterprises, relational database still takes a huge market share. Therefore, we prefer to focus on its increment instead of a total overturn. ...
    Downloads: 5 This Week
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  • 10
    Mongock

    Mongock

    Lightweight Java based migration tool

    Mongock is a Java-based database migration tool specifically designed for MongoDB, enabling version-controlled schema changes in a safe and efficient manner.
    Downloads: 0 This Week
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  • 11
    Morphia

    Morphia

    MongoDB object-document mapper in Java

    MongoDB Object Document Mapping for the JVM. Bidirectional mapping to and from the database. Transparently map your Java entities to MongoDB documents and back.
    Downloads: 0 This Week
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  • 12
    XMage

    XMage

    Magic Another Game Engine

    XMage allows you to play Magic against one or more online players or computer opponents. It includes full rules enforcement for over 20 000 unique cards and more than 50.000 reprints from different editions. You can also find custom sets like Star Wars. All regular sets have nearly all implemented cards. It supports single matches and tournaments with dozens game modes like duel, multiplayer, standard, modern, commander, pauper, oathbreaker, historic, freeform and much more. Local server...
    Downloads: 12 This Week
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  • 13
    AWS Toolkit for JetBrains

    AWS Toolkit for JetBrains

    A plugin for interacting with AWS from JetBrains IDEs

    ...Supports Java, Python, Node.js, and .NET Core.
    Downloads: 12 This Week
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  • 14
    Jaffree

    Jaffree

    Java ffmpeg and ffprobe command-line wrapper

    Jaffree is a Java library that provides a clean and modern API for interacting with FFmpeg, allowing developers to programmatically execute multimedia processing tasks. It abstracts the complexity of command-line FFmpeg usage by offering strongly typed Java classes for configuring inputs, outputs, codecs, and filters. The library supports streaming data, handling real-time processing scenarios, and integrating FFmpeg pipelines directly into Java applications. ...
    Downloads: 0 This Week
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  • 15
    Apache MINA SSHD

    Apache MINA SSHD

    A comprehensive Java library for client- and server-side SSH

    Apache MINA sshd is a comprehensive Java library for client- and server-side SSH. Apache MINA SSHD is a 100% pure java library to support the SSH protocols on both the client and server side. It does not aim at being a replacement for the SSH client or SSH server from Unix operating systems, but rather provides support for Java based applications requiring SSH support.
    Downloads: 0 This Week
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  • 16
    Moshidon

    Moshidon

    Better modification of the official Mastodon for Android app

    Moshidon is a modified version of the Mastodon official application for Android, which adds important features missing from the official application, such as a joint timeline, no Public publication, and an image description viewer.
    Downloads: 6 This Week
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  • 17
    Bastillion

    Bastillion

    Web-based SSH console that centrally manages administrative access

    Bastillion is a web-based SSH console that centrally manages administrative access to systems. Web-based administration is combined with the management and distribution of user's public SSH keys. Key management and administration is based on profiles assigned to defined users. Administrators can login using two-factor authentication with Authy or Google Authenticator. From there they can manage their public SSH keys or connect to their systems through a web-shell. Commands can be shared...
    Downloads: 2 This Week
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  • 18
    jsonschema2pojo

    jsonschema2pojo

    Generate Java types from JSON or JSON Schema for data-binding

    Generate plain old Java objects from JSON or JSON-Schema. For each property present in the 'properties' definition, we add a property to a given Java class according to the JavaBeans spec. A private field is added to the parent class, along with accompanying accessor methods (getter and setter). If additionalProperties is specified and set to the boolean value false, then the generated Java type does not support additional properties.
    Downloads: 0 This Week
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  • 19
    JetBrains Runtime

    JetBrains Runtime

    Runtime environment based on OpenJDK for running IntelliJ products

    JetBrainsRuntime is the custom Java Runtime Environment (JRE) distribution maintained by JetBrains that enhances the standard OpenJDK to better support JetBrains products and provide a robust, optimized runtime for IDEs like IntelliJ IDEA, Rider, and other tools. It includes performance-tuned garbage collectors, desktop integration fixes, font rendering improvements, enhanced GTK support on Linux, and additional patches not available in stock JDK builds to ensure smoother, more stable behavior for large-scale IDE usage. ...
    Downloads: 4 This Week
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  • 20
    ThingsBoard

    ThingsBoard

    Device management, data collection, processing and visualization

    ThingsBoard is an open-source IoT platform for data collection, processing, visualization, and device management. It enables device connectivity via industry standard IoT protocols, MQTT, CoAP and HTTP and supports both cloud and on-premises deployments. ThingsBoard combines scalability, fault-tolerance and performance so you will never lose your data. Provision, monitor and control your IoT entities in a secure way using rich server-side APIs. Define relations between your devices, assets,...
    Downloads: 8 This Week
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  • 21
    Seata

    Seata

    An easy-to-use, high-performance distributed transaction solution

    Seata, or Simple Extensible Autonomous Transaction Architecture is an open source distributed transaction solution that brings high performance and easy-to-use distributed transaction services under a microservices architecture. It has 3 basic components: a Transaction Coordinator for maintaining the status of global and branch transactions; a Transaction Manager that defines the scope of global transaction; and a Resource Manager that manages resources being worked on by branch...
    Downloads: 8 This Week
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  • 22
    Forge: Magic: The Gathering Rules Engine

    Forge: Magic: The Gathering Rules Engine

    An unofficial rules engine for the world's greatest card game

    Forge is a comprehensive open-source rules engine and gameplay platform designed to simulate and extend the card game Magic: The Gathering in a fully digital environment. Developed collaboratively by a community of contributors, it implements the vast majority of the game’s rules and card interactions, allowing players to experience both casual and competitive gameplay without official clients. The software supports multiple play modes, including single-player against AI opponents,...
    Downloads: 13 This Week
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  • 23
    Git Build Hook

    Git Build Hook

    A maven plugin for managing client side (local) git configuration

    The Git Build Hook Maven Plugin allows projects to install Git hooks and configure Git local settings automatically during the Maven build. It ensures consistent hook installation across developers.
    Downloads: 4 This Week
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  • 24
    Eclipse Open VSX

    Eclipse Open VSX

    An open-source registry for VS Code extensions

    Open VSX is a vendor-neutral open-source alternative to the Visual Studio Marketplace. It provides a server application that manages VS Code extensions in a database, a web application similar to the VS Code Marketplace, and a command-line tool for publishing extensions similar to vsce. The default frontend is the one bundled in the Docker image, and is also used for testing in the development environment. It depends on the compiled library, so make sure to build or watch the library before...
    Downloads: 4 This Week
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  • 25
    S3Mock

    S3Mock

    A simple mock implementation of the AWS S3 API startable as Docker

    S3Mock is a lightweight server that implements parts of the Amazon S3 API. It has been created to support local integration testing by reducing infrastructure dependencies. The S3Mock server can be started as a standalone Docker container, using Test containers, JUnit4, JUnit5 and TestNG support, or programmatically.
    Downloads: 4 This Week
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