You can use the IBM Integrated Solutions Console to deploy the .war files it finds in the websphere-deploy directory.
To deploy a generated .war file with the Integrated Solutions Console:
For example, if you are adding endeca-navigation-portlet.war, specify the path as endeca-navigation-portlet.
Continuing the example above, this might be /home/endeca/liferay/websphere-deploy/endeca-navigation-portlet.war.
Set the context root to match the display name of the new plugin (in this example, /endeca-navigation-portlet/).