niedev / RTranslator

Open source real-time translation app for Android that runs locally

raphw / byte-buddy

Runtime code generation for the Java virtual machine.

google / j2objc

A Java to iOS Objective-C translation tool and runtime.

btraceio / btrace

Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.

deepjavalibrary / djl

An Engine-Agnostic Deep Learning Framework in Java

Atmosphere / atmosphere

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.

eclipse-openj9 / openj9

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

erupts / erupt

Code as configuration. Annotate a Java entity with @Erupt and ship a production-grade admin backend in minutes — UI, RBAC, audit logs and APIs, all generated at runtime. No codegen, no frontend.

jOOQ / jOOR

jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.

HotswapProjects / HotswapAgent

Java unlimited redefinition of classes at runtime.

JetBrains / JetBrainsRuntime

Runtime environment based on OpenJDK for running IntelliJ Platform-based products on Windows, macOS, and Linux

apache / eventmesh

EventMesh is a new generation serverless event middleware for building distributed event-driven applications.

pnoker / iot-dc3

IoT DC3 — Connect the Physical World to AI. An open-source Industrial IoT Runtime for Physical AI: 36 protocol drivers, edge-to-cloud data delivery, and an MCP tool gateway so AI agents act on devices in a safe, controllable, traceable loop.

OpenLiberty / open-liberty

Open Liberty is a highly composable, fast to start, dynamic application server runtime environment

AthenZ / athenz

Open source platform for X.509 certificate based service authentication and fine grained access control in dynamic infrastructures. Athenz supports provisioning and configuration (centralized authorization) use cases as well as serving/runtime (decentralized authorization) use cases.

lucee / Lucee

Lucee is a high-performance, open-source CFML server written in Java. Supporting JDBC, Caching, Parallelism, HTTP, ORM, REST, S3 and dynamic Java integration, Lucee is great for developers aiming to build fast, scalable applications, delivering faster startup, rapid compilation and better runtime performance.

OWASP-Benchmark / BenchmarkJava

OWASP Benchmark is a test suite designed to verify the speed and accuracy of software vulnerability detection tools. A fully runnable web app written in Java, it supports analysis by Static (SAST), Dynamic (DAST), and Runtime (IAST) tools that support Java. The idea is that since it is fully runnable and all the vulnerabilities are actually exploitable, it’s a fair test for any kind of vulnerability detection tool. For more details on this project, please see the OWASP Benchmark Project home page.

structr / structr

ATTENTION: This repository is a clone of https://gitlab.structr.com/structr/structr. All development/issue tracking has moved there. | Structr is an integrated open-source low-code development and runtime environment that uses a graph database (Neo4j).

apache / karaf

Apache Karaf, the enterprise modulith runtime

OpenHFT / Java-Runtime-Compiler

Java Runtime Compiler

Hakky54 / ayza

🔐 An SSL library for configuring http client or server. Rich with features such as hot reloading ssl and trusting additional certificates during runtime, combining multiple keystores, loading pem files and os/jdk certificates, logging certificate information during ssl handshake, bypassing ssl configuration from other libraries and more

agentic-ai-java / argi

ARGI [/ˈɑːr.dʒiː/]: Agent Runtime and Graph Intelligence 🚀

lets-mica / mica-ppocr

PP-OCRv6 纯 Java 图片 OCR（ONNX Runtime，零 PaddlePaddle 依赖，bit-exact 对位 Python，Spring Boot Starter，结构化识别行驶证/身份证/银行卡/驾驶证/营业执照等）

liumaishenjian / codej

Java-powered open source coding agent CLI with an explicit agent runtime and unified tool pipeline.

reqover-labs / reqover

Request-level runtime coverage attribution for Spring MVC/WebFlux applications.

cagridursun / agentic-developer-handbook

Java-first open-source handbook for understanding and building agentic systems, one concept at a time.

AshkanRafiee / Libre-Contacts-Backup

Libre Contacts Backup is a FLOSS native Android contact backup app that works entirely offline, encrypts your backups, and has no third-party runtime dependencies.

hu847266h / scene-unlock-toolkit

Scene (N1 Alpha8) activation-chain research: LSPosed module (legacy stubs, verdict rewrite) + scene-daemon runtime hot-patch (ptrace icache sync). MIUI + KernelSU.

git-syl / hermes-agent-demo

A multi-model Agent runtime built on Spring Boot 4 / Spring AI 2.0: model routing (Anthropic / DeepSeek / OpenAI / custom), thinking toggle, Task subagents, hot-pluggable Skills, Docker sandbox + Code Interpreter, MCP tools, dify/n8n integration, RAG with pgvector, Human-in-the-Loop approvals — all streamed as structured SSE events.