com.atlassian.jira.issue.operations
Classes 
AssignIssueOperation
AttachFileOperation
AttachScreenshotOperation
CloneIssueOperation
CommentIssueOperation
CreateSubtaskOperation
DeleteIssueOperation
EditIssueOperation
IssueToSubTaskOperation
LinkIssueOperation
LoginOperation
LogWorkOperation
MoveIssueOperation
SubTaskToIssueOperation
VoteIssueOperation
WatchIssueOperation