getAvailableOptions(String fieldNameOrID)

The getAvailableOptions(String fieldNameOrID) method on any Issue object, such as the one provided by the issue, linkedIssue and parentIssue variables (where applicable), as well as Issue objects returned by other methods such as getParentObject(), getEpic() or getLinkedIssues(), returns a collection of available options for the specified field. The return type depends on the field specified. For example, a version picker type field returns a Collection<Version>, the Component/s field returns a Collection<ProjectComponent>, etc. 

To find the available options for a field, say, Affects Version/s, call this method on the current issue using either the field name or the field ID, just like on the get(String fieldNameOrID) method: issue.getAvailableOptions("Affects Version/s") or issue.getAvailableOptions("versions")

 Dynamic fields like Description, Summary, Labels etc are not supported in this method. If you try passing these fields you will get an error.

See here for this method's use case.

On this page:

Supported Standard Jira fields

Collection<Version>

Collection<Version>

Collection<Resolution>

Collection<IssueSecurityLevel>

Supported Custom fields

A custom field available options display is decided by the custom field type implementation. 

Collection<Option>

Collection<Project>