|  | @@ -7,17 +7,7 @@ import static java.math.BigDecimal.*;
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				|  |  |  import java.math.BigDecimal;
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				|  |  |  import java.time.LocalDate;
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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.Collections;
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				|  |  | -import java.util.Comparator;
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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.function.Function;
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				|  |  |  import java.util.stream.Collectors;
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				|  |  |  
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				|  | @@ -1681,7 +1671,7 @@ public class VipGroupServiceImpl extends BaseServiceImpl<Long, VipGroup> impleme
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				|  |  |                      vipGroup.setOrganName(organNameMap.get(vipGroup.getOrganId()));
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				|  |  |  
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				|  |  |                      if ((Objects.isNull(aLong1) || aLong1 <= 0)
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				|  |  | -                            && (classGroup.getStudentNum() <= 0)) {
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				|  |  | +                            && (Objects.isNull(classGroup) || Optional.ofNullable(classGroup.getStudentNum()).orElse(0) <= 0)) {
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				|  |  |                          vipGroup.setEnableDelete(1);
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				|  |  |                      }
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				|  |  |  
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