Get Started

Weld is the reference implementation of Jakarta CDI (Contexts and Dependency Injection). It is integrated into most Jakarta EE application servers and can also be used standalone. Choose your deployment scenario below.

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.jboss.weld</groupId>
      <artifactId>weld-core-bom</artifactId>
      <version>${weld.version}</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

Jakarta EE Application Server

Weld is integrated into most Jakarta EE application servers as the CDI implementation. No extra dependencies needed — just deploy your application and CDI works out of the box.

Servlet Container

For Tomcat, Jetty, or other servlet containers. Choose the shaded jar (all dependencies included) or the core module if you prefer to manage transitive dependencies yourself.

<dependency>
  <groupId>org.jboss.weld.servlet</groupId>
  <artifactId>weld-servlet-shaded</artifactId>
</dependency>

<dependency>
  <groupId>org.jboss.weld.servlet</groupId>
  <artifactId>weld-servlet-core</artifactId>
</dependency>

Java SE

Use CDI in standalone Java SE applications. You'll also need the CDI API on your classpath.

<dependency>
  <groupId>org.jboss.weld.se</groupId>
  <artifactId>weld-se-shaded</artifactId>
</dependency>

<dependency>
  <groupId>org.jboss.weld.se</groupId>
  <artifactId>weld-se-core</artifactId>
</dependency>

Testing

Test CDI applications with real injection — no mocking required. Weld Testing provides extensions for JUnit 5, JUnit 4, and Spock.

Binary Distributions

All Weld releases are available as binary distribution ZIP files. The most recent releases are shown below — expand the table to see the full history.