+* This example script  post function for ScriptRunner for Jira Server shows how you can add a comment to an issue when it is transitioned.

+* "All right, title and interest in this code snippet shall remain the exclusive intellectual property of Adaptavist Group Ltd and its affiliates. Customers with a valid ScriptRunner

+* license shall be granted a  non-exclusive, non-transferable, freely revocable right to use this code snippet only within their own instance of Atlassian products. This licensing notice cannot be removed or

+* amended and must be included in any circumstances where the code snippet is shared by You or a third party." 

+*/ 

+

+import com.atlassian.jira.issue.Issue;

+import com.atlassian.jira.ComponentManager

+import com.atlassian.jira.component.ComponentAccessor;

+import com.atlassian.jira.issue.comments.CommentManager

+import com.atlassian.jira.user.ApplicationUser

+

+// Get a pointer to the issue

+Issue issueKey  = issue

+

+// Get the current logged in user

+def CurrentUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser() as ApplicationUser

+

+// Get access to the Jira comment and component manager

+CommentManager commentManager = ComponentAccessor.getCommentManager()

+ComponentManager componentManager = ComponentManager.getInstance()

+

+// Get the last comment entered in on the issue to a String

+def comment = "A Sample Comment"

+

+

+// Check if the issue is not null

+if(issueKey){

+        // Create a comment on the issue

+        commentManager.create(issueKey, CurrentUser,comment, true)