Consider changes needed to handle new possibility of server config <include> elements pointing to a directory

[cherylking]

This OpenLiberty issue adds support for the <include> element location attribute to point to a directory containing server config files. This will affect any plugin code that processes the server.xml <include> elements.

At a minimum, I know it affects feature element processing, and how we look for inclusion of applications.

[cherylking]

This would affect Liberty Gradle plugin also.

[cherylking]

The OL issue is currently targeted for 23.0.0.10 which has an eGA of 10/17. It is also planned to be included in the 23.0.0.10-beta which has an eGA of 9/19.

[cherylking]

Pointers to some affected classes:

• ServerConfigDocument in ci.common (parseIncludeVariables, parseInclude)
• ServerFeatureUtil in ci.common (parseIncludeNode)