update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ClassGroupServiceImpl.java

@@ -2365,14 +2365,16 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
             highClassGroup.setTeacherName(bishopTeacher.getUserName());
             highClassGroup.setUserId(bishopTeacher.getUserId());
             CourseSchedule courseSchedule = courseScheduleDao.findOneCourseScheduleByClassGroupId(highClassGroup.getId());
-            highClassGroup.setStartClassTime(DateUtil.format(courseSchedule.getStartClassTime(), "HH:mm"));
-            highClassGroup.setEndClassTime(DateUtil.format(courseSchedule.getEndClassTime(), "HH:mm"));
-
-            Calendar calendar = Calendar.getInstance();
-            calendar.setTime(courseSchedule.getClassDate());
-            Integer dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
-            dayOfWeek = dayOfWeek.equals(0) ? 7 : dayOfWeek;
-            highClassGroup.setDayOfWeek(dayOfWeek);
+			if (courseSchedule != null) {
+				highClassGroup.setStartClassTime(DateUtil.format(courseSchedule.getStartClassTime(), "HH:mm"));
+				highClassGroup.setEndClassTime(DateUtil.format(courseSchedule.getEndClassTime(), "HH:mm"));
+
+				Calendar calendar = Calendar.getInstance();
+				calendar.setTime(courseSchedule.getClassDate());
+				Integer dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
+				dayOfWeek = dayOfWeek.equals(0) ? 7 : dayOfWeek;
+				highClassGroup.setDayOfWeek(dayOfWeek);
+			}
         }
         return highClassGroupList;
     }