@Override
public String toString(){
Multimap<String, String> entries = new CaseInsensitiveKeyMultimap<>();
entries.put("engine.mode", getMode());
entries.put("engine.regexcache.maxsize", String.valueOf(getRegexCacheMaxsize()));
entries.put("engine.regexcache.expiryhours", String.valueOf(getRegexCacheExpiryHours()));
entries.put("engine.environmentcache.maxage", String.valueOf(getEnvironmentCacheMaxage()));
entries.put("engine.environmentcache.maxsize", String.valueOf(getEnvironmentCacheMaxsize()));
entries.put("engine.environmentcache.expiryhours", String.valueOf(getEnvironmentCacheExpiryHours()));
entries.put("engine.environmentcache.expiry", String.valueOf(getEnvironmentCacheExpiry()));
entries.put("engine.environmentcache.verifyperiod", getEnvironmentCacheVerifyPeriod());
entries.put("engine.environmentcache.location", getEnvironmentCacheLocation());
entries.put("engine.environmentcache.mode", getEnvironmentCacheMode());
entries.put("engine.regextimeout", String.valueOf(getRegexTimeout()));
return StringHelper.mapToHtml(entries);
}