Java agent examples. To learn how to manually instrument your service .

Java agent examples OpenTelemetry for Java Applications: A Practical Guide OpenTelemetry is an open-source project within the Cloud Native Computing Foundation (CNCF) that provides APIs, libraries, agents, and instrumentation for telemetry data. Aug 25, 2024 · This post provides a comprehensive introduction to Java Agents, covering their history, core functionality, and applications in modern software development. Example Jupyter notebooks 📓 and code scripts 💻 for using Amazon Bedrock Agents 🤖 and its functionalities - awslabs/amazon-bedrock-agent-samples Feb 15, 2024 · Thanks a lot for ByteBuddy! It helped me to debug an issue that only occurred in production in a Java EE application. Apart from lots of normal features used by all developers, there are some that are more low-level, designed to serve more “system” or “tooling” purposes. It also provides tools to let you build more complex use cases on top of basic functionality. Look at what tools like JVisualVM offer. NET, JavaScript, and Python implementations. JadeJessProtege, this package includes examples for a closer integration of JADE with JESS, optionally also with protege. Chapter 3 focuses on creating agents and explains the basic features of the Agent and AID classes. But first, let's take a short detour to understand what OpenTelemetry is. Create the agent and deploy a DRAFT version. Jul 18, 2024 · Zero-code instrumentation with Java uses a Java agent JAR attached to any Java 8+ application. Create an action group that connects the agent to the Lambda function. memory. Before diving in, I will explain how a Java Agent intercepts a Class using the simple HelloWorld Example. I'm using the . This approach allows you to learn and build incrementally – starting with foundational concepts and gradually tackling more advanced agent Oct 11, 2019 · This article shows you how to use the new Java 11 HttpClient APIs to send HTTP GET/POST requests, and some frequent used examples. A Java agent can use instrumentation but it doesn’t have to. To generate a Java development project to run this workflow, please refer to 1. InvocationHandler java. OpenTelemetry is an observability framework – an API, SDK, and tools that are designed to aid in the generation and collection of application telemetry data such as metrics, logs, and traces. Proxy Exam Dec 19, 2019 · The simplest Java agent is running prior to the actual application, for example to execute some dynamic setup. One example is sun. Apr 24, 2023 · Discover how Java agents can efficiently profile your applications. instrument. Let's explore how these principles translate into practical implementations using Spring AI. Some examples require Docker to be running on your local machine. Sep 18, 2015 · The goal of this part is to demystify Java agents by explaining how they work, how to run them and showing off some simple examples where Java agents come as a clear advantage. Contribute to sgpinkus/jade development by creating an account on GitHub. Official LiveKit Examples and Demos. Mar 26, 2022 · Manifest file — While creating a jar of a java application, we provide the path to the main class in the manifest file, similarly in the java agent (agent class + transformer class) we need to create a manifest file and add the path to the class that has the premain method. Static load modifies the byte-code at application startup time before any code is executed which means JVM control is Apr 14, 2025 · For more information This page describes the various ways in which configuration can be supplied to the Java agent. Oct 10, 2024 · Build a custom AI chatbot in Java with LangChain4j, Spring Boot, and Vaadin. After installing, you can quickly monitor transactions, dive deep This repo contains ADK sample agents for Python, Go and Java. JAVA Agent DEvelopment Framework . - google/adk-java Nov 5, 2025 · It's a spring boot application implementing a vertical multi-agent architectures using langchain4j to create Agents equipped with tools. These tutorials are designed in a simple, progressive, step-by-step fashion, introducing you to different ADK features and capabilities. Mar 6, 2020 · Loading a Java agent at application startup is called static loading. More examples from the community can be found here. Feb 25, 2015 · I am attempting to load a java agent to use java. This guide covers setup, configuration, auto-instrumentation capabilities, and production deployment strategies for implementing distributed tracing and observability. io Java Documentation for: An overview of the OpenTelemetry Java ecosystem and key repositories Detailed documentation on the components published from this repository Review of instrumentation ecosystem, including May 20, 2025 · Java developers now have access to Google’s Agent Development Kit (ADK) in Java. reflect. Why is a multi-agent approach useful for building AI apps? For New Relic Java agent API, an example of using custom instrumentation in an app to monitor distributed tracing and external datastore calls. Oct 3, 2023 · In the intricate landscape of Java programming, a specialized class known as a Java agent remains a topic of intrigue and complexity for many developers. Jul 16, 2024 · In this second part, I show how to install any Java agent via the OpenTelemetry operator, using the Elastic Java agents as examples. May 20, 2025 · At Google Cloud Next ‘25, last April, Google released Agent Development Kit (ADK) for Python, a flexible and modular framework for developing and deploying AI agents. This example demonstrates simple usage of the OpenTelemetry Java Agent published by opentelemetry-java-instrumentation. A good place to start includes: Tutorials More examples Examples of using advanced RAG techniques Example of an agent with memory, tools and RAG If you have any issues or feature requests, please submit them here. For information on the configuration options themselves, see Configure the SDK. It’s an open-source Jan 21, 2025 · In a recent research publication: Building effective agents, Anthropic shared valuable insights about building effective Large Language Model (LLM) agents. Extensions add new features and capabilities to the agent without having to create a separate distribution (for examples and ideas, see Use cases for extensions). Download opentelemetry-javaagent. It consists of a Spring Boot application with: Sep 11, 2024 · Overview In this article, I will discuss the concepts of AI and AGI, and explore how to build a multi-agent system using an Agentic Framework built on top of Tools4AI & JADE, based on the IEEE FIPA (Foundation for Intelligent Physical Agents) specification, which provides standards for agent communication and interoperability. Build profilers and APMs with clear examples and best practices. Deploy the fully configured agent. Additionally, I will provide hands-on code and examples to help you Jess, is a sample agent that allows the programmer to avoid writing any line of Java code and implement everything in CLIPS by using JESS. Here is my Java: package com. The samples demonstrate various SDK capabilities, patterns, and integration scenarios across . A curated list of awesome resources, implementations, tools, and examples related to the Agent2Agent (A2A) Protocol for AI agent interoperability. Java Agents Relevant source files Purpose and Scope This document covers the Java-based agent implementations in the ADK Sample Agents repository. Unsafe, which gives e. Java Quickstart for ADK This guide shows you how to get up and running with Agent Development Kit for Java. 5. It simplifies the implementation of multi-agent systems through a middle-ware that complies with the FIPA (Foundation for Intelligent Physical Agents 🎬 Google A2A Protocol - Java Examples If you're looking to build Java applications using the Google A2A (Agent-to-Agent) protocol, this repository provides numerous reference examples to help you get started. Tools4AI delivers exactly that. An agent could for instance install a specific SecurityManager or configure system properties programmatically. Mar 13, 2025 · Learn how to set up, configure, and optimize the OpenTelemetry Java Agent for better observability and performance monitoring. A guide for integrating AI into enterprise apps. Full documentation is available. Sep 16, 2024 · Agentic automation involves intelligent agents that act independently to perform tasks, communicate with other agents, and make decisions based on the data they receive. Jul 6, 2020 · Java agents are extremely powerful and also dangerous. This project provides a detailed example of using the Elastic APM Java Plugin API to add custom instrumentation in to the agent, which the Sample maven project containing a Java agent and examples of bytecode manipulation with ASM and Javassist - tomsquest/java-agent-asm-javassist-sample Create an execution role for the agent. It demonstrates creation of AI agents using the Java Agent DEvelopment Framework (JADE) and Tools4AI. Sep 13, 2025 · Sample Applications Relevant source files This section provides a comprehensive guide to the sample applications included in the Microsoft 365 Agents SDK repository. What makes this research particularly interesting is its emphasis on simplicity and composability over complex frameworks. You'll begin by setting up your Java and Maven environment, structuring your project, and defining the necessary dependencies. Build a streaming agent with Java This quickstart guide will walk you through the process of creating a basic agent and leveraging ADK Streaming with Java to facilitate low-latency, bidirectional voice interactions. Java agents represent a smaller subset of the overall agent ecosystem, providing examples of how to implement ADK agents using Java, Maven/Gradle, and the Java ADK framework. Agent Configuration The agent can consume configuration from one or more of the following sources (ordered from highest to lowest priority): System properties Environment variables Configuration file It's a spring boot application implementing a vertical multi-agent architectures using langchain4j to create Agents equipped with tools. May 12, 2015 · Learn how to write a javaagent or use HotSpot Debugger to solve bytecode collection problems in Java with our step-by-step guide. Build your agent with ADK Get started with the Agent Development Kit (ADK) through our collection of practical guides. g. Apr 10, 2021 · If we execute the typical static void main method, for example, and add the java agent as a JVM argument, we can see an output similar to this one: [INFO ] 2021-03-04 [main] BasicAgentExample opentelemetry-java-instrumentation Java agent for automatic instrumentation: opentelemetry-javaagent - Java agent for zero-code instrumentation library instrumentations - Manual instrumentation for popular Java libraries Prerequisites Before starting with this tutorial, ensure you have the following tools installed on your system: Nov 12, 2025 · The OpenTelemetry Java Agent provides zero-code instrumentation for Spring Boot applications through bytecode manipulation. example. This repository contains a set of fully functional, working examples of using the OpenTelemetry Java APIs and SDK. These examples demonstrate building intelligent agents that can plan, execute workflows, use tools, and interact with humans. Only MBeans derived from MIBs can be managed through the SNMP protocol adaptor, but other managers can view and access them Feb 23, 2011 · Creating SNMP Agent (Server) in JAVA using SNMP4j In Previous article, we have seen that how to create SNMP client in JAVA using SNMP4j. Learn agent creation, messaging, behaviors, and negotiation through practical examples. It provides reusable patterns for agent encapsulation, orchestration, memory, and observability. What is OpenTelemetry Java Agent? The OpenTelemetry Java Agent is a JAR file that attaches to any Java 8 English · 简体中文 Learn agentic AI development with Spring Framework and Java or Kotlin. For more information on how to utilize the Java Function Blocks Distribution provides guidance on creating a separate distribution, serving as a collection of examples for extending the functionality of the OpenTelemetry Java instrumentation agent. The Prometheus Java community is present on the CNCF Slack on #prometheus-java, and we have a fortnightly community call in the Prometheus public calendar. This capability is incredibly useful for profiling, monitoring, logging, and many other advanced functionalities that require altering the behavior of Java applications without modifying the source code. In this blog post, we’ll walk through how to manually instrument an application with the OpenTelemetry Java project (configuring APIs and the SDK), and how to use auto-instrumentation with the Java agent. 2 days ago · In this Quickstart, you walk through setting up a working JavaScript Claude Agent SDK agent using Microsoft Agent 365 tooling, notifications, observability, and testing the agent with Agents Playground and Teams. See opentelemetry. Now at Google I/O, a Java version of ADK has been made available! And I’m glad to have had the chance to participate in its launch, via code samples, documentation, and helping shape the API so it’s idiomatic for Java May 27, 2025 · With the unveiling of the Java version of Agent Development Kit (ADK) which lets you build AI agents in Java, I recently covered how to get started developing your first agent. You can change (instrument) the byte code without changing the java source file and recompiling. md and the community section of the Prometheus homepage. Nov 4, 2017 · Java Virtual Machine (JVM) is a really great platform, mature, and well-established. Oct 12, 2023 · The OpenTelemetry Java agent enables Java applications to generate and capture telemetry data automatically. The core repository for implementation code is the Embabel Agent repository For more resources, see Awesome Embabel. May 13, 2025 · Explore a Java-based multi-agent system demo using the JADE framework. AF4J is Agentic Framework for Java. 0 License. These samples serve as reference implementations for developers building A2A-compliant agents. The contents in this folder demonstrate how to create an extension for the OpenTelemetry Java instrumentation agent, with examples for every extension point. It provides strong support for Java. To create the Agent for SNMP which listens for the request should extend the abstract class BaseAgent. newBuilder() See CONTRIBUTING. jar from Releases of the opentelemetry-java-instrumentation repository. This module contains a fully functional example of using the autoconfigure SDK Dec 3, 2019 · In this post, we remedy this situation by giving you a quick guide on Java agentswhat Java agents are, what are the benefits of employing them, and how you can use them to profile your Java applications. New Relic Java Examples also uses source code from third-party libraries. usage; import java. Install injector The java agent injector is a component of the operator, so you need to follow Operator installation instrument to install the operator firstly. For information about the broader agent ecosystem including Python May 29, 2025 · Inspired by the simplicity and ergonomic design of OpenAI Swarm, this sample provides an easy entry point to the potential of agent-based architectures in Java. For that, I start my Tomcat 5. Our Java agent monitors your Java app and provides visibility into the behavior of your JVM. Here we will build a simple profiler which will instrument our Java program and give us method execution count metrics. AOPTransformer will transform target class to print "before invoke" when invoke methods. low-level access to memory. Jul 28, 2011 · I want to measure the code coverage of integration tests using the JaCoCo and Sonar tools. A low-level software component to augment the working of a JVM, such as profilers, code-coverage tools, etc I've found similar question here, but unfortunately it also refers to This example demonstrates how to instrument a Spring Boot application in a non-intrusive way, using the OpenTracing Java Agent with Hawkular APM as the backend tracing system. Contribute to open-telemetry/opentelemetry-java-examples development by creating an account on GitHub. Oct 19, 2025 · Sample Agents and Examples Relevant source files Purpose and Scope This page catalogs working example agents that demonstrate A2A protocol capabilities across multiple programming languages and integration frameworks. Agent Development Kit (ADK) is a flexible and modular framework for developing and deploying AI agents. Instrumentation to measure the size of an object. Create a Lambda function that implements the agent's capabilities. JADE (Java Agent DEvelopment Framework) is a software framework fully implemented in the Java language. 9 or later Create an agent project Create an agent project with the following files and directory structure: Jul 22, 2024 · Java Agent Programming is a powerful feature that allows developers to instrument Java bytecode at runtime. LiveKit Examples has 74 repositories available. SNMP MIBs can be represented as MBeans and the SNMP protocol adaptor exposes them to SNMP managers. Apr 9, 2025 · We'll walk through the key components of the example, which demonstrates how to implement this functionality. 5 configured with the JaCoCo agent in order to get the dump file from JaCoC JAVA Agent JDK Dynamic Agent Example Where is the generated byte code from the agent class? Summarize Reference article Use two classes,java. Jan 5, 2020 · With New Relic's Java agent for bytecode instrumentation, you can track everything from performance issues to tiny errors within your code. in Java the Agent Router to understand user intent from chat interactions and routes the request to the appropriate domain-specific agent. Java Agent Setup Guide. Jan 8, 2024 · A guide to understanding Java Instrumentation and implementing custom agents. opentelemetry-java is the home of the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Before you start, make sure you have the following installed: Java 17 or later Maven 3. To see the Java Agent in action with sample applications, see the OpenTelemetry examples. Read both the source code and the Gradle build script, as they contain Apr 17, 2025 · 🧠 AI with Java & Spring Boot – Part 5: AI Agents with LangChain4j + Tool Integration Welcome back! 🙌 In the last parts of this series, we taught our AI app to chat, remember, and understand documents. ADK was designed to make agent development feel more like software development, to make it easier for developers to create, deploy, and Nov 7, 2025 · Java Language-specific implementation of OpenTelemetry in Java. You can find full details on which libraries are used and the terms under which they are licensed in the third-party notices document. Telemetry data refers to metrics, logs, and traces, which are used to understand the behavior and performance of a system Apr 22, 2025 · Discover Java Agents, ASM, and ByteBuddy for runtime bytecode manipulation. License New Relic Java Examples is licensed under the Apache 2. Dec 19, 2019 · The simplest Java agent is running prior to the actual application, for example to execute some dynamic setup. This release helps developers to build AI agents natively in Java, this guide helps you through installing the Introductory examples are in our examples repository. Key takeaways include the history of Java Agents, their architecture, and best practices for development. Installation and configuration recap This Java agent writes a value to the Category field based on the value of the TotalSales field of each document in the database. Jan 5, 2021 · Get started For complete instructions on how to get started with the Splunk Distribution of OpenTelemetry Java, see Instrument Java services for Observability Cloud in the official Splunk documentation. Readers will gain a solid understanding of the concept and learn how to implement basic Java Agents. Follow their code on GitHub. Agents are the JVM mechanism that Dec 8, 2015 · In this article Rafael Winterhalter, creator of the bytecode manipulation tool Byte Buddy, provides detailed guidance on how to easily create Java agents using Byte Buddy. Delete all created resources. Now I want to invoke them from my Restful application. Deutsch | English Chapter 2 presents a simple example that will be used throughout this tutorial to illustrate the steps required to develop simple agent-based applications with JADE. This type of automation is Java agent API: Use the API to control, customize, or extend the functionality of the Java agent. This repo contains ADK sample agents for Python, Go and Java. While the pattern The sample workflow is a simple real time workflow that contains a pulse agent that periodically sends pulses of data into the Java agent, where the Java codes will debug the input and route it back out to the Analysis agent. Browser instrumentation: Integrate the Java agent with browser monitoring to gain visibility into end-user activity. For an advanced example, see our Travel Planner. This article gives you a solid overview of the OpenTelemetry Java agent, including how it works. Jun 8, 2018 · Is it possible to create multiples agents in the same container (not Main-Container) in Java Agent Development Framework (JADE)? I tried using -agents parameter but it didn't work. I know java agent can mean two things: An agent programmed in Java being an incarnation of the agent concept of distributed systems. It can use all other features the Java platform offers. The profiler will The Elastic APM Java Agent is a Java agent that automatically measures the performance of your application and tracks errors. This comprehensive guide aims to unveil the Example of how to instrument the java class files on class loading. Overview of the example The example is a RESTful service can be implemented using Helidon MP that interacts with Oracle's Generative AI Agent Runtime using OCI SDK. This repository uses the latest Embabel snapshots to illustrate current best practice, whereas the Java and Kotlin template repositories s use the latest milestone release for Apr 23, 2025 · LangChain4j is a java library to make interactions with AI models and LLMs in Java easy, with unified APIs that wrap different models. For detailed information about building agents using the core SDK classes, see Building While the Java agent provides automatic instrumentation for popular frameworks, you might find the need to perform instrumentation in your application, for example, to provide custom data or to instrument code within the application itself. An open-source, code-first Java toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control. Learn profiling techniques and tools for identifying and optimizing performance issues. HttpClient httpClient = HttpClient. These agents are instrumental in intercepting applications operating on the Java Virtual Machine (JVM) and are adept at modifying their bytecode, thanks to the power of the Java Instrumentation API. Invoke the agent with user-provided prompts. At this 2nd anniversary of LangChain4j, we are thrilled to give you a walkthrough of the functionality that enables you to build basic and advanced AI-powered apps in Apr 28, 2025 · Introduction In this comprehensive guide, I’ll walk you through how I built a sample Java server that implements the A2A (Agent-to-Agent) JSON-RPC specification by Google A2A protocol . To learn how to manually instrument your service Sep 23, 2013 · 1 Don’t mix up Javaagents and Instrumentation. misc. Jun 24, 2025 · Instrumentation Next, you’ll use a Java agent to automatically instrument the application at launch time. Feb 10, 2025 · Autonomous AI Agents in Java: Agentic AI Introduction 👋 An autonomous agent is a system or entity capable of making its own decisions “without” constant human input. This May 9, 2022 · How to write Java agents? We will be discussing how useful Java agents are for Java developers and how you can start with writing a simple Java agent. This is the OpenTelemetry Java documentation. Compare with Examples 1 and 3, which use LotusScript and formula solutions. Feb 1, 2023 · You're ready to explore sample Java applications instrumented with OpenTelemetry. The BaseAgent abstract class defines a framework for writing SNMP agents using the SNMP4J-Agent API. The typical example of an agent not using instrumentation is the JMX agent. Apr 22, 2025 · With so many agentic frameworks emerging in the AI space, what we really need is something deadly simple — especially for Java applications. Today, we’ll make it act smartly — by building an AI agent that can: Interpret your input Decide what to do Call tools (Java methods) Return a final answer Think of it like a smart Using the Java Dynamic Management Kit (Java DMK), you can create an agent application that is both an SNMP agent and a normal Java Management Extensions (JMX) agent. Hello, I have created several bedrock agents, and using the console I'm able to chat with them to perform the actions I want. It can be used to capture telemetry data at the “edges” of an app or service, such as inbound requests, outbound HTTP calls, database calls, and so on. Java Agents are software components that provide instrumentation capabilities to an application. However, there were no easy to find examples for the particular oddities of usi Java agent injector Usage In this example, you will learn how to use the java agent injector. To get started you can look at A2AJavaAgent class, which shows how to define and trigger Google a2a tasks using natural language prompts. Circuit breaker for Java custom instrumentation: Use a circuit breaker to protect applications from over-instrumentation. Sep 30, 2024 · This article explores Java Agent Programming, how Java agents work, their key features, use cases, and best practices. While you can configure the Java agent in a number of ways, the steps below use environment variables. This repository provides several examples using the LangChain4j library. While optimized for Gemini and the Google ecosystem, ADK is model-agnostic, deployment-agnostic, and is built for compatibility with other frameworks. It dynamically injects bytecode to capture telemetry from many popular libraries and frameworks. Dec 30, 2018 · The Java Agent technology has been around since JDK 1. Navigate to the Python, Go, and Java subfolders to see language-specific setup instructions, and learn more about the available sample agents. What is OpenTelemetry? OpenTelemetry is a collection of code - a set of APIs, SDKs, tooling, and integrations that Sep 23, 2025 · This document covers the Embabel Agent Examples repository, a comprehensive collection of AI agent implementations demonstrating agentic development patterns using Spring Boot, Java, and Kotlin. All examples can be run locally. lang. The examples range from simple echo servers to complex multi-agent systems with LLM Aug 10, 2012 · Most of result refers to JADE. Another such feature is agents. To leverage this repository please use our website powered by this GitHub: Website This repository contains pre-built examples to help customers get started with the Amazon Bedrock service. ktwp jqiwvj rze eyrj wfvue vgb qdiyf ptvkl hvn wbl ivdrpq gfsmj ejcpbb ecucms ahnguf