@Override
    @NotNull
    public String getCommentStringValue(Object comment) {
        LOG.assertTrue(comment instanceof XmlComment);

        PsiElement c = (PsiElement)comment;
        final PsiElement[] children = c.getChildren();
        for (PsiElement child : children) {
            if (child instanceof XmlToken && ((XmlToken)child).getTokenType() == XmlTokenType.XML_COMMENT_CHARACTERS) {
                return child.getText();
            }
        }
        return "";
    }
@Override
    @NotNull
    public String getCommentStringValue(Object comment)