|  | @@ -18,17 +18,7 @@ import java.time.LocalDate;
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				|  |  |  import java.time.LocalDateTime;
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				|  |  |  import java.time.ZoneId;
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				|  |  |  import java.time.format.DateTimeFormatter;
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				|  |  | -import java.util.ArrayList;
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				|  |  | -import java.util.Arrays;
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				|  |  | -import java.util.Calendar;
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				|  |  | -import java.util.Collections;
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				|  |  | -import java.util.Date;
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				|  |  | -import java.util.HashMap;
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				|  |  | -import java.util.HashSet;
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				|  |  | -import java.util.List;
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				|  |  | -import java.util.Map;
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				|  |  | -import java.util.Objects;
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				|  |  | -import java.util.Set;
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				|  |  | +import java.util.*;
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				|  |  |  import java.util.stream.Collectors;
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				|  |  |  
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				|  |  |  import com.ym.mec.biz.dal.dao.*;
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				|  | @@ -2536,6 +2526,7 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
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				|  |  |  
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				|  |  |          if(!confirmGenerate){
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				|  |  |              TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
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				|  |  | +            courseScheduleList.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
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				|  |  |              return BaseController.failed(HttpStatus.PARTIAL_CONTENT, courseScheduleList, "");
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				|  |  |          }
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