public IssueOperation getIssueOperation() {
   if (getIssueOperationId() != null)
     return IssueOperations.getIssueOperation(getIssueOperationId());
   else return null;
 }
 protected void validateIssueOperationId() {
   // Null operation id represents the default entry
   if (issueOperationId != null && IssueOperations.getIssueOperation(issueOperationId) == null) {
     addError("issueOperationId", getText("admin.errors.screens.invalid.issue.operation.id"));
   }
 }