Disappointment with groovy/XmlSlurper

Greatest disappointment with groovy/XmlSlurper: it does not read/interpret XML comments. Quite critical for massive XML processing/transformations, when it is necessary to keep change delta to minimum.
In the last project I had to recede to JDOM2 - it reads, interprets and writes XML comments without problems. Sad, volume of code doubles compared to XmlSlurper.

groovy XmlParser and XmlSlurper

I am absolutely astonished by functionality of groovy classes XmlParser and XmlSlurper. The both are similar to each other, with one important difference: XmlParser is more DOM-like (all data in memory), while XmlSlurper is more SAX-like (data parsing delayed until needed).

The most charming thing is how both work together with closures, regexps and collection methods. I am seriously thinking about shifting all XML-specific code to these facilities.

http://groovy.codehaus.org/Reading+XML+using+Groovy%27s+XmlParser 
http://groovy.codehaus.org/Reading+XML+using+Groovy%27s+XmlSlurper