Load testing for Java developers

Efficiently write load tests as code in Java. Take full advantage of one of the most powerful programming languages to script realistic user journeys with your existing libraries and development practices.

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Why Java for load testing?

Create realistic load tests

Test-as-code allows you to build virtual user journeys that exactly match what your users do. Use Java's object-oriented features to model complex user behaviors and business logic.

Leverage your Java expertise

Your team already knows Java—now they can apply that knowledge to performance testing. Use familiar IDEs, debugging tools, Maven/Gradle builds, and JVM ecosystem libraries without learning new tools.

Integrate with your existing stack

Use your existing Java libraries, Maven/Gradle builds, and CI/CD integrations to make load testing seamless in your development lifecycle.

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Create Java performance tests at scale

See how our Enterprise Edition makes it effortless to write, structure, and scale Gatling simulations in Java. Define complex test logic, apply strong typing, and enforce performance thresholds. All from a powerful, intuitive code-first interface.

Built for working with Java

Advanced capabilities designed for performance engineers who need deep control, scalability, and comprehensive analysis

Bottlenecks emerge under realistic load

Performance issues surface in complex user journeys with authentication, dynamic payloads, and multi-step workflows that simple GET requests can't reveal.

Complex scenarios are straightforward

Java's rich ecosystem and powerful language features make it easy to create sophisticated load tests that mirror real-world application usage patterns.

Scale testing matches production demands

Testing 10 users locally tells you nothing about what happens with 10,000 concurrent users hitting your API during peak traffic periods.

Recording captures real user behavior

Convert actual browser interactions into maintainable test scripts, preserving the timing and complexity of genuine user workflows.

Strategic performance analytics

Infrastructure that scales with you

The best experience for every team

Built for simplicity and speed

Performance testing

Cross-team collaboration

Seamless load testing that speeds your SDLC

Script complex user scenarios with ease

Java's rich ecosystem and powerful language features make it easy to create sophisticated load tests that mirror real-world application usage patterns. With Java, you can abstract common tasks like user authentication to speed up test creation and maintain consistency across scenarios.

Import your datasets and libraries from CSV, JSON, JDBC, Redis, and more to use real production data in your tests.

Record user scenarios from your web application

The Java SDK includes a built-in web recorder for capturing user scenarios and converting them into Java load test scripts.

Start from real user interactions and generate clean, maintainable Java code that preserves the timing and complexity of genuine user workflows.

FAQ

Frequently asked questions about Gatling's Java SDK

How does the Java SDK compare to other Gatling SDKs?

The Java SDK provides the same core Gatling functionality as other SDKs but with Java-specific advantages: strong typing, excellent IDE support, seamless integration with Maven/Gradle, and access to the vast Java ecosystem. It's ideal for teams already using Java in their stack.

Can I use my existing Java libraries in Gatling tests?

Yes! You can import and use any Java library in your Gatling tests. This includes database drivers (JDBC), JSON processing libraries (Jackson, Gson), authentication libraries, custom business logic, and any other JAR dependencies your project uses.

What's the difference between Gatling Community Edition and Enterprise for Java?

Gatling Community Edition provides the core Java testing framework for local and single-machine testing. Gatling Enterprise adds distributed load generation, advanced reporting, team collaboration features, and enterprise integrations—all while using the same Java test code.

What protocols does the Java SDK support?

The Java SDK supports HTTP/HTTPS (including REST APIs), WebSockets, Server-Sent Events (SSE), JMS, gRPC, and MQTT. The community also maintains additional protocol support like Kafka. HTTP testing is the most common use case and has the richest feature set.