The article explains the background of long Java restart times, defines hot swap and hot deployment, details their implementation mechanisms, compares their granularity, speed, limitations, and impact, lists common tools, and highlights frequent misconceptions and pitfalls for developers.
This guide explains why hot‑reloading Java code is essential for large Spring Boot projects, compares three approaches—Spring Boot DevTools, IntelliJ IDEA's built‑in HotSwap, and the JRebel plugin—and provides step‑by‑step installation and usage instructions for each method.
When Spring Boot projects grow, restart times can reach minutes, slowing development, so the article compares three hot‑reload approaches—spring‑boot‑devtools, IDEA’s built‑in HowSwap, and the JRebel plugin—detailing their setup, limitations, and why JRebel is the most effective.
This guide explains how to achieve hot code replacement in Spring Boot projects without restarting the application, covering three approaches—spring-boot-devtools, IntelliJ IDEA's HotSwap plugin, and JRebel—along with configuration steps, demo commands, and practical tips for faster development cycles.
This article explains three hot‑deployment methods for Spring Boot—IDEA's configuration options, the spring‑boot‑devtools library, and the JRebel plugin—detailing how to set them up, their underlying mechanisms, and best‑practice recommendations to avoid costly full restarts during development.
This guide explains how to install, activate, and configure JRebel and XRebel in IntelliJ IDEA to enable hot deployment for Java Spring Boot projects, covering offline mode, auto‑make settings, and usage of the performance analysis features.
Michael Rasmussen of JRebel discusses Java’s accelerating development, the shifting OpenJDK LTS cadence, adoption trends for Java 8 and 17, upcoming features in Java 18‑19, the future impact of the Valhalla project, and how microservice frameworks and IDE preferences are shaping the Java ecosystem in 2022.
This guide explains how to install JRebel, a hot‑deployment tool for Java web applications, using either Tomcat startup parameters or the IntelliJ IDEA plugin, and details the necessary VM options, deployment settings, and Maven/Gradle integration to achieve instant code updates without restarting the server.
This article explains how to install and configure JRebel for both local and remote hot deployment in Spring Boot projects, compares it with Spring DevTools, and provides step‑by‑step instructions, code snippets, and troubleshooting tips for multi‑module applications.
This guide explains how JRebel eliminates the need to restart Tomcat by enabling hot‑deployment of class and Spring configuration changes, covering two installation methods—adding JVM parameters to Tomcat and using the IntelliJ IDEA plugin—plus detailed configuration for Windows, Linux, Mac, Maven, and Gradle.
This guide explains how to set up JRebel—either by adding JVM arguments to Tomcat or by installing the IntelliJ IDEA plugin—to achieve instant class and resource updates during Java web development, including platform‑specific VM options and Maven/Gradle integration.
Learn how to dramatically speed up Java web development by installing JRebel, covering both Tomcat startup parameter configuration and the IntelliJ IDEA plugin method, with detailed screenshots, VM options for Windows, Linux, and macOS, and tips for proper deployment settings.
This guide explains what JRebel is, why it speeds up Java web development, and provides step‑by‑step instructions for installing it via Tomcat startup parameters or the IntelliJ IDEA plugin, including configuration of deployment settings and VM options for Windows, Linux, and macOS.
This article explains how to install and configure JRebel for both local and remote hot deployment in Spring Boot projects, compares it with Spring DevTools, provides step‑by‑step setup instructions, and addresses multi‑module deployment pitfalls.
This guide explains why relying on third‑party reverse proxies for JRebel activation can fail, and provides step‑by‑step instructions to build your own local or server‑side reverse proxy, generate the required GUID, and configure IDEA or command‑line activation for seamless hot‑deployment.
This article explains how to disable template caching in Spring Boot for Thymeleaf, FreeMarker, Groovy, and Velocity, and compares several hot‑deployment methods including Debug mode, spring-boot-devtools, Spring Loaded, and JRebel, providing configuration snippets and practical guidance.
Java dynamic bytecode enhancement uses agents, the Instrumentation API, and the Attach API to modify class bytecode at load time without source changes, enabling non‑intrusive AOP features that power tools such as JRebel for hot deployment, Pinpoint for distributed tracing, Arthas for diagnostics, JVM‑SANDBOX for sandboxed interception, and JRARP for method call recording and playback.
