Packaging and installing Liberty features
You can package and install Liberty features to WebSphere Application Server Liberty.
About this task
A Liberty feature may be packaged as a subsystem archive, as defined by the OSGi Enterprise specification (5.0). A subsystem archive is a compressed file with an .esa extension that includes the feature manifest and the resource files that constitute the feature. The WebSphere Application Server developer tools will import and export Liberty features by using the subsystem archive format, and features can be installed to a Liberty runtime environment by using the installUtility or featureManager command if the features are in the .esa format.