private static Properties getOutputProperties() {
        final Map<Property, String> properties = new HashMap<>(10);
        properties.put(Property.METHOD, XML);
        properties.put(Property.ENCODING, UTF_8);
        properties.put(Property.INDENT, NO);
        properties.put(Property.VERSION, XML_VERSION);

        final Properties props = new Properties();
        for (final Property p : properties.keySet()) {
            final String value = properties.get(p);
            props.setProperty(p.toString(), value);
        }
        return props;
    }
Create a Properties object holding the defined serialization properties.
This will be in the same format as JAXP interfaces such as
{@link javax.xml.transform.Transformer#getOutputProperties()}

@return a newly-constructed Properties object holding the declared
serialization properties
stroom-pipeline/src/main/java/stroom/pipeline/xml/event/EventListUtils.java