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Weld is the reference implementation of CDI: Contexts and Dependency Injection for the Java EE Platform which is the Java standard for dependency injection and contextual lifecycle management and one of the most important and popular parts of the Java EE platform.

Weld is integrated into many Java EE application servers such as WildFly, JBoss Enterprise Application Platform, GlassFish, Oracle WebLogic and others. Weld can also be used in a Servlet-only environment (Tomcat, Jetty) or plain Java SE environment.

See for more details.

Building Weld

To build Weld simply run

$ mvn clean install

Upgrading Weld in WildFly

Firstly, set the JBOSS_HOME environment property to point to your WildFly installation which already contains Weld 3 in older version:

$ export JBOSS_HOME=/opt/wildfly

Then, run the upgrade script:

$ mvn package -Pupdate-jboss-as -f jboss-as/pom.xml -Dweld.update.version=${weld.version}

In the above snippet, ${weld.version} is the version of Weld you want to use. Now you should have patched WildFly in JBOSS_HOME.

Running integration tests and the TCK on WildFly

Follow the steps above to set the JBOSS_HOME environment property and to upgrade Weld within WildFly. Then, run:

$ mvn clean verify -Dincontainer -f tests-arquillian/pom.xml

$ mvn clean verify -Dincontainer -f jboss-tck-runner/pom.xml

If you want to run a specific test you can use the -Dtest=<test_name> flag. For example

$ mvn clean verify -Dincontainer -f jboss-tck-runner/pom.xml -Dtest=FireEventTest

Will run all the tests defined in FireEventTest.

$ mvn clean verify -Dincontainer -f jboss-tck-runner/pom.xml -Dtest=FireEventTest#testInjectedEventAcceptsEventObject

Will only run the FireEventTest.testInjectedEventAcceptsEventObject() test method.


Weld, including integrations for Servlet containers and Java SE, examples and documentation




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