This feature enables support for Java Client API for JAX-RS 2.0.
To enable the Java RESTful Services Client 2.0 feature, add the following element declaration inside the featureManager element in your server.xml file:
<feature>jaxrsClient-2.0</feature>
If you are developing a feature that depends on the Java RESTful Services Client 2.0 feature, include the following item in the Subsystem-Content header in the feature manifest file for your new feature:
com.ibm.websphere.appserver.jaxrsClient-2.0; type="osgi.subsystem.feature"