Browse Learn Clojure Foundations as a Java Developer

Integrating with Maven and Gradle

Fit Clojure into existing Java Maven or Gradle builds by keeping dependency resolution, packaging, source ownership, and runtime boundaries explicit.

Many Java teams adopt Clojure inside an existing Maven or Gradle build. The good news: Clojure is just another JVM language at deployment time. The tricky part is keeping the build and runtime boundaries clean.

What To Aim For

  • A single, predictable classpath for dev, test, and production.
  • A packaging story that your ops pipeline understands (jar/uberjar, container image, etc.).
  • A clear boundary between Clojure namespaces and Java packages so ownership is obvious.
Integration choice When it helps Risk to manage
Separate Clojure service Teams want independent deployment and a clean learning boundary More service/platform overhead
Separate JVM module Shared release train but clear source ownership Build complexity across modules
Mixed Java/Clojure module Tight interop inside one codebase Harder classpath, compile, and ownership boundaries
Clojure called from Java Incremental adoption around pure functions or adapters Java callers can force object-shaped APIs too early

Practical guidance: integrate at the build level only when you need to. A separate Clojure service/module is often simpler than forcing everything into one build on day one.

This section helps you reason about the trade-offs so “adding Clojure” does not become a long-term build maintenance tax.

In this section

  • Add Clojure to Maven Builds
    Use Maven as the owning build for mixed Java and Clojure modules by declaring the Clojure runtime, source roots, plugin responsibilities, and compile/test boundaries explicitly.
  • Add Clojure to Gradle Builds
    Integrate Clojure into Gradle with explicit plugin choice, source-set ownership, dependency scopes, test wiring, and runtime boundaries for mixed JVM projects.
  • Choose Maven or Gradle for Clojure
    Decide whether Maven, Gradle, a separate Clojure build, or a separate service is the right integration boundary for Java teams adopting Clojure on the JVM.
Revised on Saturday, May 23, 2026
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