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| Field Type | Return Type | Comments |
|---|---|---|
| Checkboxes | Collection<com.atlassian.jira.issue.customfields.option.Option> | |
| Date Picker | java.util.Date | |
| Date Time Picker | java.util.Date | |
| Labels | Set<com.atlassian.jira.issue.label.Label> | |
| Number Field | Double | |
| Radio Buttons | com.atlassian.jira.issue.customfields.option.Option | |
| Select List (cascading) | Map<String, com.atlassian.jira.issue.customfields.option.Option> | The key in the map represents the field depth of the select list. A key of null is the first level, and a key of "1" (the string "1") is the second level select list. |
| Select List (multiple choices) | Collection<com.atlassian.jira.issue.customfields.option.Option> | |
| Select List (single choice) | com.atlassian.jira.issue.customfields.option.OptionString | |
| Text Field (multi line) | String | |
| Text Field (single line) | String | |
| URL Field | String | |
| User Picker (single user) | com.atlassian.jira.user.ApplicationUser (depending on JIRA version) |
...