Showing 3743 open source projects for "run time java"

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  • 1
    VisualVM

    VisualVM

    VisualVM is an All-in-One Java Troubleshooting Tool

    VisualVM is a visual tool integrating command line JDK tools and lightweight profiling capabilities. Designed for both development and production time use. Use Apache Ant 1.9.9 or above and Oracle JDK 8 to build VisualVM from this repository. VisualVM monitors and troubleshoots applications running on Java 1.4+ from many vendors using various technologies including jvmstat, JMX, Serviceability Agent (SA) and Attach API. VisualVM perfectly fits all the requirements of application developers, system administrators, quality engineers and end users. ...
    Downloads: 17 This Week
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  • 2
    Canal

    Canal

    MySQL binlog

    Canal is an open-source project developed by Alibaba that simulates MySQL slave functionality to parse MySQL binlog files. It enables real-time data synchronization and change data capture (CDC) between MySQL and other systems such as Elasticsearch, Kafka, or HBase. Canal is widely used for data integration, replication, and monitoring across distributed systems, offering high performance and low-latency log parsing.
    Downloads: 4 This Week
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  • 3
    EnvFile

    EnvFile

    EnvFile 3.x is a plugin for JetBrains IDEs

    Env File is a plugin for JetBrains IDEs that allows you to set environment variables for your run configurations from one or multiple files. Not all run configurations available in IDEA-based IDEs are implemented similarly. Some of them differ significantly. In certain cases (so far, only Gradle has been confirmed) the implementation exposes interfaces to integrate the EnvFile UI but doesn't provide interfaces for it to actually make its work. Luckily, it was possible to make few assumptions...
    Downloads: 6 This Week
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  • 4
    Coffee GB

    Coffee GB

    Gameboy emulator in Java 8

    Coffee GB is a Gameboy Color emulator written in Java 8. It's meant to be a development exercise. More info can be found in the blog post. First I implemented all the Gameboy CPU opcodes. It’s not exactly the Z80, but it’s pretty close. As a reference, I’ve used the GameBoy CPU Manual - later on I discovered that it has a few typos and is not specific enough for some of the operations.
    Downloads: 2 This Week
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  • 5
    RE2/J

    RE2/J

    linear time regular expression matching in Java

    RE2/J is a high-performance regular expression engine implemented in pure Java as a port of Google’s C++ RE2 library. Unlike traditional regex engines such as Java’s java.util.regex, PCRE, or Perl’s implementation—which rely on backtracking and can suffer from catastrophic exponential runtimes—RE2/J guarantees linear-time matching relative to input size. It achieves this efficiency by simulating all possible matches in a single pass using a nondeterministic finite automaton (NFA), ensuring predictable and safe performance even with complex patterns. ...
    Downloads: 0 This Week
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  • 6
    iText

    iText

    iText for Java represents the next level of SDKs for developers

    ...The latest release of iText, version 8, is a simpler, more performant and extensible library that is ready to handle the increased challenges of today's document workflows, one add-on at a time.
    Downloads: 25 This Week
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  • 7
    testng

    testng

    TestNG testing framework

    TestNG is a testing framework inspired from JUnit and NUnit but introduces some new functionalities that make it more powerful and easier to use. Run your tests in arbitrarily big thread pools with various policies available (all methods in their own thread, one thread per test class, etc...).
    Downloads: 2 This Week
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  • 8
    ZAP

    ZAP

    The OWASP ZAP core project

    The OWASP Zed Attack Proxy (ZAP) is one of the world’s most popular free security tools and is actively maintained by a dedicated international team of volunteers. It can help you automatically find security vulnerabilities in your web applications while you are developing and testing your applications. It's also a great tool for experienced pentesters to use for manual security testing. ZAP is an easy to use integrated penetration testing tool for finding vulnerabilities in web...
    Downloads: 138 This Week
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  • 9
    GeyserMC

    GeyserMC

    A bridge/proxy allowing you to connect to Minecraft

    Geyser is an open-source proxy and protocol translation tool that enables cross-platform multiplayer between Minecraft: Java Edition servers and Minecraft: Bedrock Edition clients. The project works by translating network packets between the two different game protocols so that players using Bedrock Edition devices such as consoles, mobile phones, or Windows editions can connect to servers originally designed for Java Edition. By bridging the differences between the two platforms, Geyser...
    Downloads: 17 This Week
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  • 10
    Micronaut Data

    Micronaut Data

    Ahead of Time Data Repositories

    ...Micronaut Data instead moves this model into the compiler. Both GORM and Spring Data use regular expressions and pattern matching in combination with runtime generated proxies to translate a method definition on a Java interface into a query at runtime. No such runtime translation exists in Micronaut Data and this work is carried out by the Micronaut compiler at compilation time.
    Downloads: 0 This Week
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  • 11
    jclasslib bytecode editor

    jclasslib bytecode editor

    Visualizes all aspects of compiled Java class files

    jclasslib bytecode editor is a tool that visualizes all aspects of compiled Java class files and the contained bytecode. Many aspects of class files can be edited in the UI. In addition, it contains a library that enables developers to read and write Java class files and bytecode. All constant pool entries can be edited. Referenced constant pool entries can directly be edited from the context menu that is shown by the "Edit" button of attributes and constant pool entries. Bytecode...
    Downloads: 17 This Week
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  • 12
    Apache Baremaps

    Apache Baremaps

    Create custom vector tiles from OpenStreetMap

    Baremaps is an Apache Incubator project that provides tools and a Java-based pipeline for building and rendering vector tiles from OpenStreetMap (OSM) data. It’s designed for fast map generation, serving tiles, and supporting real-time updates, making it a powerful backend for map-based applications.
    Downloads: 0 This Week
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  • 13
    xManager

    xManager

    Ad-Free, New Features & Freedom

    xManager supports Android. Chrome OS and Windows 11 now have Android support so xManager technically works there (and any system that can emulate Android). There are no current plans to natively support Windows, MacOS, Linux, etc. Android devices have CPUs. Merged is a combination of Armeabi-v7a and Arm64-v8a architecture. Armeabi-v7a is the modern arch that supports floating point operations, and a multi-threading safe is used on multi-cpu devices. It is also 32-bit. If you are determined...
    Downloads: 26 This Week
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  • 14
    tigerbeetle

    tigerbeetle

    The financial transactions database designed for mission critical safe

    TigerBeetle is production-ready on Linux and seamlessly integrated with major programming languages. TigerBeetle is a financial transactions database designed for mission-critical safety and performance to power the next 30 years of OLTP. TigerBeetle redesigns the distributed database storage engine and consensus protocol for the OLTP workload. This solves the problem of OLTP write contention to unlock three orders of magnitude more performance than a general purpose (OLGP) database. The...
    Downloads: 39 This Week
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  • 15
    Component

    Component

    A powerful componentized framework

    A powerful componentized framework. A powerful, 100% compatible, AndroidX, Kotlin support and flexible componentized framework. Component 2.x will all use Kotlin, and the annotation driver will be developed using ksp. The workload is huge. Therefore, the official 2.x version will have routine maintenance bugs in 1.9.x after a long time, please rest assured. Early adopters can use it 2.x, please use 1.9.x for stability. Choosing a better, more comprehensive, more stable and more promising...
    Downloads: 0 This Week
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  • 16
    Takes

    Takes

    True object-oriented Java web framework without NULLs

    Takes is a true object-oriented and immutable Java8 web development framework. Pay attention that UTF-8 encoding is set on the command line. The entire framework relies on your default Java encoding, which is not necessarily UTF-8 by default. To be sure, always set it on the command line with file.encoding Java argument. We decided not to hard-code "UTF-8" in our code mostly because this would be against the entire idea of Java localization, according to which a user always should have a...
    Downloads: 0 This Week
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  • 17
    Genie

    Genie

    Distributed Big Data Orchestration Service

    Genie is a completely open source distributed job orchestration engine developed by Netflix. Genie provides REST-ful APIs to run a variety of big data jobs like Hadoop, Pig, Hive, Spark, Presto, Sqoop and more. It also provides APIs for managing the metadata of many distributed processing clusters and the commands and applications which run on them.
    Downloads: 1 This Week
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  • 18
    WorldEdit

    WorldEdit

    Minecraft map editor and mod

    ...The tool includes a variety of editing methods such as brushes, shape generation commands, and clipboard operations that allow copying, pasting, and rotating entire structures. WorldEdit can run in both single-player environments and multiplayer servers and is compatible with several modding platforms and server frameworks used in Minecraft Java Edition.
    Downloads: 19 This Week
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  • 19
    Super-Mario-Bros-Java
    ------- 6th Feb 2026 ---------- gamepad support added = Mario_NES_Gamepad_Supported.zip require minimum java 1.8 after starting game with java.exe -jar "Mario.jar" in the main screen you can press z and x to chagen levels -------- settings if u check "skip this next time" and if u want to bring it back simply delete the file "Settings.txt" ( the file is create when u launch game and start game ) -------- controlls : z = run / fire x = jump arrows : left = go left down : duck right = go right i = show controlls menu g = show gamepad buttons -------- this is not for android game , its for windows , mac os and linux
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    Downloads: 577 This Week
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  • 20
    JSON Schema Validator

    JSON Schema Validator

    A fast Java JSON schema validator that supports draft V4, V6, V7, V201

    This is a Java implementation of the JSON Schema Core Draft v4, v6, v7, v2019-09 and v2020-12(partial) specification for JSON schema validation. In addition, it also works for OpenAPI 3.0 request/response validation with some configuration flags. For users who want to collect information from a JSON node based on the schema, the walkers can help. The default JSON parser is the Jackson which is the most popular one. As it is a key component in our light-4j microservices framework to validate...
    Downloads: 4 This Week
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  • 21
    Apache Log4j

    Apache Log4j

    Apache Log4j 2 is a versatile, feature-rich, efficient logging API

    Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases. Log4j is used by 8% of the Maven ecosystem and listed as one of the top 100 critical open source software projects. The project is actively maintained by a team of several volunteers and supported by a big community.
    Downloads: 17 This Week
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  • 22
    JavaCV

    JavaCV

    Java interface to OpenCV, FFmpeg, and more

    JavaCV uses wrappers from the JavaCPP Presets of commonly used libraries by researchers in the field of computer vision (OpenCV, FFmpeg, libdc1394, FlyCapture, Spinnaker, OpenKinect, librealsense, CL PS3 Eye Driver, videoInput, ARToolKitPlus, flandmark, Leptonica, and Tesseract) and provides utility classes to make their functionality easier to use on the Java platform, including Android. JavaCV also comes with hardware accelerated full-screen image display (CanvasFrame and GLCanvasFrame),...
    Downloads: 23 This Week
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  • 23
    Swagger Core

    Swagger Core

    Examples, server integrations for generating Swagger API Specification

    Swagger Core is a Java implementation of the OpenAPI Specification. Current version supports JAX-RS2 (javax and jakarta namespaces). One of the common usage scenarios is to integrate swagger-jaxrs2 into an existing or new JAX-RS based project ("code-first"), to automatically provide and expose its APIs definition, which is kept in sync during the project lifecycle. Such definition can be the base for further processing/consumption, including API documentation (e.g with swagger-ui, API client...
    Downloads: 4 This Week
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  • 24
    Redisson

    Redisson

    Valkey & Redis Java client. Real-Time Data Platform

    Redisson is a Java client library for Redis that offers distributed data structures, services, and frameworks to build scalable and reliable applications. It simplifies Redis usage by providing in-memory Java objects like maps, sets, locks, queues, and semaphores that are backed by Redis. Redisson supports advanced features like distributed locking, asynchronous APIs, and integrates with frameworks like Spring and Quarkus for reactive and cloud-native development.
    Downloads: 2 This Week
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  • 25
    Chat2DB

    Chat2DB

    AI-driven database tool and SQL client

    Save time by working with data. Connect to all your data sources, and instantly generate optimal SQL for fast lightning information. If you don't know SQL well, you can get instant information without writing SQL. Generate high-performance SQL for your complicated queries using natural language, as well as correcting errors and getting AI suggestions to optimize the performance of SQL queries. Developers can write complex SQL queries quickly and accurately with the help of the AI SQL editor,...
    Downloads: 2 This Week
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