LastComment Scripted Field no longer works in Jira 8 (ScriptRunner 5.5.7.1)

[Christopher Gronde]

We have a commonly used script runner field called Last Comment that no longer works after our most recent update to Jira. 

import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.comments.Comment
import com.atlassian.jira.issue.comments.CommentManager
import com.atlassian.jira.component.ComponentAccessor

def commentManager = ComponentAccessor.getCommentManager()
def comment = commentManager.getLastComment (issue)
def date = comment.getCreated()

return ((date as String) + " " + comment.body + "<br> Author: " + comment.authorFullName)

 We have already discovered that the first import no longer works and must be replaced with

import com.atlassian.jira.component.pico.ComponentManager

But that breaks other parts of the code.  Can anyone help with the new code or where to find what needs changed?

[Peter-Dave Sheehan]

While I don't have Jira 8 yet ... the ComponentManager has been deprecated for a long time.

And you don't seem to be using it anywhere in your script. Probably just some leftover.

I suspect the following simplified script will work just fine with identical results:

import com.atlassian.jira.component.ComponentAccessor
def comment = ComponentAccessor.commentManager.getLastComment(issue)
"$comment.created $comment.body <br> Author: $comment.authorFullName"