assertFalse(options.isSplitIndex());
        assertNull(options.getWindowTitle());
        assertNull(options.getDocTitle());
        assertNull(options.getFooter());
        assertNull(options.getBottom());
        assertEmpty(options.getLinks());
        assertEmpty(options.getLinksOffline());
        assertFalse(options.isLinkSource());
        assertEmpty(options.getGroups());

     */
    @Nullable @Optional @Input
    public String getBottom() {
        return bottom.getValue();
    }

    public void setBottom(@Nullable String bottom) {
        this.bottom.setValue(bottom);
    }

    public StandardJavadocDocletOptions bottom(String bottom) {
        setBottom(bottom);
        return this;
    }

    /**
     * -link extdocURL
     * <p>