* @return the display name
     */
    String getDisplayName();

    /**
     * Appends diagnostic information about the contents of this collection to the given formatter.
     */
    TreeFormatter describeContents(TreeFormatter formatter);

    /**
     * Calculates the execution time value of this file collection. The resulting value is serialized to the configuration cache

    }

    @Override
    protected void appendContents(TreeFormatter formatter) {
        formatter.node("backing collection");
        formatter.startChildren();
        collection.describeContents(formatter);
        formatter.endChildren();
    }

    public AbstractFileCollection getCollection() {
        return collection;
    }

    @Override

    }

    @Override
    protected boolean isDefaultConvention() {
        return getConventionSupplier() == NOT_DEFINED;
    }

    @Override
    protected String describeContents() {
        // NOTE: Do not realize the value of the Provider in toString().  The debugger will try to call this method and make debugging really frustrating.