question: @ Override public final boolean process ( Set < ? extends TypeElement > annotations , RoundEnvironment roundEnv ) { for ( TypeElement elem : ElementFilter . typesIn ( roundEnv . getRootElements ( ) ) ) { elements . add ( elem . getQualifiedName ( ) ) ; } return false ; }
target:  The use of this method is obsolete in type processors.  The method is called during declaration annotation processing phase only. It registers the names of elements to process.