public final List<File> getModelDirs() {
        if ((modelDirs == null) && (modelPath != null)) {
            modelDirs = paths().stream().filter(XtextParserConfig::isFile).map(XtextParserConfig::asFile).collect(Collectors.toList());
        }
        return modelDirs;
    }
public final List<File> getModelDirs() {
        if ((modelDirs == null) && (modelPath != null)) {
            modelDirs = paths().stream().filter(XtextParserConfig::isFile).map(XtextParserConfig::asFile).collect(Collectors.toList());
        }
        return modelDirs;
    }
public final List < File > getModelDirs ( ) { if ( ( modelDirs == null ) && ( modelPath != null ) ) { modelDirs = paths ( ) . stream ( ) . filter ( XtextParserConfig :: isFile ) . map ( XtextParserConfig :: asFile ) . collect ( Collectors . toList ( ) ) ; } return modelDirs ; }
Returns a list of model directories to parse.

@return Directory list or NULL.
Returns a list of model directories to parse .