public CharSequence normalize(CharSequence text) {
        String modified = URL_REGEX.matcher(text).replaceAll(" ");
        return MAIL_REGEX.matcher(modified).replaceAll(" ");
    }
Modifies {@link opennlp.tools.util.normalizer.UrlCharSequenceNormalizer} to avoid the bad email regex.

@author jonmv
opennlp-linguistics/src/main/java/com/yahoo/language/opennlp/UrlCharSequenceNormalizer.java