![]() ![]() place rebel.xml in the main folder of the package (jar/ear/war, etc.) that will be run as a standalone application or will be deployed to server.Then at the bytecode level it adds/removes/replaces fields/method bodies/etc. If you compile a class, JRebel notices the change and compares the differences between class definitions. ![]() It looks for changes in the folder with your compiled classes. It works as a java agent on top of the JVM. JRebel instantly reloads changes to Java code. I think JRebel is cool, but as everything it is not perfect, so before buying it you should learn how it works. I tried to be honest and not to force any opinions. All the information is based on my personal experience after using JRebel for the last 10 months. You can also calculate your team’s time and financial savings using our ROI calculator.Disclaimer: I wasn't paid for this post. Why not give it a shot? Try XRebel free for 10 days and/or try JRebel free for 10 days.Ĭurious to see how XRebel works for your stack specifically? Sign up for a personalized demo. These two tools together save over 5,000 customers hundreds of hours of development time and lets them push their product to market that much sooner. JRebel skips the rebuild, restart, and redeploy cycle common in Java development. JRebel is a productivity tool that allows developers to reload code changes instantly. XRebel and JRebel exist as a single plugin to your favorite IDE. From installation to troubleshooting, the XRebel team is on-hand to help developers get the most out of their licenses. If distributed tracing, IO and performance metrics are not enough for your debugging needs, XRebel shows logs and exceptions effortlessly in the UI. XRebel brings distributed tracing into the development environment, reducing microservice bottlenecks. By increasing visibility into how JPA and Hibernate queries relate to JDBC invocations, XRebel makes suboptimal database issues easier to diagnose and fix. Follow a request across all XRebel-enabled services, seeing performance data for each. XRebel offers an X-Ray look into microservices. Top Java technologies support by XRebel include: With support for top frameworks, popular application servers, IDEs, NoSQL databases, and JVM languages, XRebel works out of the box for almost every JVM-based stack. The hierarchical view is designed to show as little as possible, even in huge applications, so you can see relevant information, including errors, faster. XRebel can pick up NoSQL database queries, showing the actual query running against the database. With a request profiler, developers can also see the layers involved in the request and pinpoint where any bottlenecks are occurring. The rich, intuitive UI lets developers easily see performance metrics. There is no browser plugin necessary and it works in any HTML5-compliant browser. The XRebel toolbar is injected as an HTML widget in your application or in its own standalone window. XRebel is a JVM java agent -javaagent:/xrebel.jar, so you can run it on any server, anywhere. Unlike traditional performance tools, XRebel filters out irrelevant information, displays real time metrics side-by-side with the application itself, and it is approachable by developers without prior performance expertise. Java developers can then use the real-time Java performance metrics to identify, correct, and validate performance issues as they develop their application. With XRebel, developers can trace the impact of their code from beginning to end in distributed microservice-based applications. What Is XRebel? XRebel is a Java code analysis tool for development that delivers real-time performance insights. ![]() Let’s dive into this one-of-a-kind tool and see why thousands of developers have it on-hand in their dev stacks. What if you didn’t have to do that? What if you could trace your code in real-time to identify any errors sooner?Įnter XRebel, a performance analysis tool suitable for Java microservices developers. Developers spend this time often waiting to correct errors and bugs that are identified in QA/staging or production. Fifty-three percent of developers surveyed in the 2021 Java Developer Report say they are spending six or more minutes on their CI/CD builds. ![]()
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