Creating Issues (subtasks) in Workflow Post Function

Trying to create an new issue in a Jira 7.13 post function. The validateCreate() call is failing and the error/warning message collections are empty.

public class CreateSubTask extends AbstractJiraFunctionProvider
private static final Logger log = LoggerFactory.getLogger(CreateSubTask.class);

public void execute(Map transientVars, Map args, PropertySet ps) throws WorkflowException {
    DateFormat df = new SimpleDateFormat("dd/MM/yy HH:mm:ss");
    Date dateobj = new Date();

    MutableIssue parentIssue = getIssue(transientVars);
    IssueService issueService = ComponentAccessor.getIssueService();
    IssueInputParameters inputParameters = issueService.newIssueInputParameters();
    inputParameters.setSummary("New issue summary");
    ApplicationUser user = parentIssue.getCreator();

    IssueService.CreateValidationResult validationResult = issueService.validateCreate(user, inputParameters);
    if (!validationResult.isValid())
        String errors = String.join(" ", validationResult.getErrorCollection().getErrorMessages());
        String warnings = String.join(" ", validationResult.getWarningCollection().getWarnings());

        parentIssue.setDescription(df.format(dateobj) + " - Validation failed - " +
                errors + " - warnings - " + warnings);
    IssueService.IssueResult result = issueService.create(user, validationResult);


Description field - 30/09/20 13:11:42 - Validation failed - warnings -

Any help would be appreciated…

Found it, I had specified an invalid Issue type. When I changeed it to this it worked…


You’re printing List<String> errorMessages but you’re ignoring Map<String, String> errors. See

I’ve run into this developer error numerous times as a Systems Administrator and it really makes it hell to debug when the developer does not log the entire validationResult.

Ok, now I see the error messages…

        StringBuilder messages = new StringBuilder();

        for (Map.Entry<String, String> entry : validationResult.getErrorCollection().getErrors().entrySet()) {

01/10/20 09:38:21 - Validation failed - issuetype=The issue type selected is invalid.

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No worries, I’m currently working with a vendor on this exact same issue :smiley: Good luck!

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