Not supported empty or null <includes> and <excludes>

[JuanMiguelBG]

Not supported empty or null and . The problems are on the methods setExcludes( String[] excludes ) and setIncludes( String[] includes ) of the class org.codehaus.plexus.util.AbstractScanner.

They throws NullPointerException when call the method normalizePattern( String pattern ).

[ChristianSchulte]

Issue got fixed in commit 2644af5a8a51bbaf2cc307386b81d63069954e46.