Adding and removing Liberty features

Features are the units of functionality by which you control the pieces of the runtime environment that are loaded into a particular server. To add or remove a Liberty feature, you add or remove an XML snippet in the <feature> subelement of the server.xml configuration file. When you add or remove Liberty features, the changes are applied dynamically.

To add or remove Liberty features, complete the following steps:

1. Open the server.xml configuration file for editing.

   You can do this using a text editor. By default, the path and file name for the configuration root document file is usr/servers/server_name/server.xml. However, you can change the path. See Customizing the Liberty profile environment.

2. Add or remove features in the configuration file.
   The set of features is enclosed within the <featureManager> element, and each feature within the <feature> subelement. For example:

   <server>
     <featureManager>
       <feature>servlet-3.0</feature>
       <feature>localConnector-1.0</feature>
     </featureManager>
   </server>

   The matching of feature names is not case-sensitive; the following example is also a valid server configuration:

   <featureManager>
           <feature>Servlet-3.0</feature>
           <feature>localConnector-1.0</feature>
   </featureManager>

3. Save the changes to the configuration file.