How do I set labels using the clone issue post-function from Script Runner?

[B. Nana]

This may be an extremely noob question but how do I set a label in the Additional issue actions? I can see how to set specific fields, but I can't see the method for labels (I tried the custom field script, but that didn't work either).

[Rambanam Prasad]

the following code we use in java, so you can convert to groovy

import com.atlassian.jira.issue.label.Label;
import com.atlassian.jira.issue.label.LabelParser;
import com.atlassian.jira.component.ComponentAccessor;
import com.atlassian.jira.issue.MutableIssue;


MutableIssue mutIssue =ComponentAccessor.getIssueManager().getIssueObject(issue.getKey());
Set<Label> labels = new HashSet<Label>();
labels.addAll(mutIssue.getLabels());
labels.addAll(LabelParser.buildFromString("New Label"));
mutIssue.setLabels(labels);

[Henning Tietgens]

A small problem with Rambanams code is, that the issue doesn't exist at the time the additional issue actions are executed. The following slightly modified code works:

import com.atlassian.jira.issue.label.Label
import com.atlassian.jira.issue.label.LabelParser


def labels = new HashSet<Label>()
labels.addAll(issue.labels)
labels.addAll(LabelParser.buildFromString("NewLabel"))
issue.setLabels(labels)