Custom Field showing Last Modified User of an issue

Question

I found some of code in the forum for a scripted field but can not get it to work with the latest software.

Any help appreciated

import com.atlassian.jira.component.ComponentAccessor

def changeHistoryManager = ComponentAccessor.getChangeHistoryManager()
def changeItems = changeHistoryManager.getAllChangeItems(issue)

if (changeItems?.size() > 0) {
def userUtil = ComponentAccessor.getUserUtil()
def userkey = changeItems.sort(false).last().getUserKey()
    userUtil.getUserByKey(userkey)
} else {
    null
}

Randy_dyxb6i · Answer

Ah that's good information Nic.  I didnt realize it also fired on comment/edit/move/index.  Thanks

Nic Brough -Adaptavist- · Answer

Apart from it not explicitly returning a value for the field to work with (as it's pseudo code, or code not intended for a field) what is it doing?

Brian Taylor_8egdd8 · Answer

Nic - do you have any suggestions to the code listed as it does not appear to work