fix: session exercise

src/main/java/com/example/codeE/model/exercise/common/problem/TestCase.java

@@ -8,8 +8,6 @@
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.Field;
 
-import java.util.List;
-
 @Getter
 @Setter
 @AllArgsConstructor

src/main/java/com/example/codeE/repository/SessionExerciseRepository.java

@@ -7,4 +7,5 @@
 
 public interface SessionExerciseRepository extends MongoRepository<SessionExercise, String> {
     List<SessionExercise> findByStudentIdAndLoginId(String studentId, String loginId);
+    List<SessionExercise> findByStudentId(String studentId);
 }

src/main/java/com/example/codeE/service/authentication/AuthenImpl.java

@@ -10,7 +10,6 @@
 import com.example.codeE.request.user.UserAuthenRequest;
 import com.example.codeE.security.BCryptPassword;
 import com.example.codeE.service.course.CourseService;
-import com.example.codeE.service.exercise.common.SessionExerciseService;
 import jakarta.servlet.http.Cookie;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;

src/main/java/com/example/codeE/service/exercise/ExerciseImpl.java

@@ -168,7 +168,7 @@ else if (exercise.getKey().equals(key) && isReTemp(exercise.getExerciseId(), stu
                 }
             }
             //check session exercise
-            var sessionExercises = this.sessionExerciseRepository.findByStudentIdAndLoginId(studentId, loginId);
+            var sessionExercises = this.sessionExerciseRepository.findByStudentId(studentId);
             if (sessionExercises.isEmpty()) {
                 // if it does not have any session has been saved create new one.
                 // get time now
@@ -204,7 +204,7 @@ else if (exercise.getKey().equals(key) && isReTemp(exercise.getExerciseId(), stu
                         throw new IllegalArgumentException("Student need to complete another current exercise before participating in a new one.");
                     }
                 } else {
-                    throw new IllegalArgumentException("Failed to retrieve exercise information.");
+                    throw new IllegalArgumentException("Student is using another browser to take an exercise.");
                 }
             }
         }