Cleanup.

server/src/main/java/de/uftos/controller/ConstraintController.java

@@ -62,7 +62,7 @@ public Page<ConstraintSignature> getConstraintSignatures(Pageable pageable,
 
   /**
    * Maps the HTTP GET request for a constraint signature with the given ID to the
-   * {@link ConstraintSignatureService#getById(String)}  getById} function of the
+   * {@link ConstraintSignatureService#getById(String)  getById} function of the
    * constraint signature service.
    *
    * @param signatureId the ID of the signature.
@@ -91,7 +91,7 @@ public ConstraintInstance createConstraintInstance(@PathVariable String signatur
 
   /**
    * Maps the HTTP GET request for a constraint signature with the given ID to the
-   * {@link ConstraintSignatureService#getById(String)}  getById} function of
+   * {@link ConstraintSignatureService#getById(String)}  getById function of
    * the constraint signature service.
    *
    * @param signatureId the constraint signature for which an instance is to be created.

server/src/main/java/de/uftos/controller/StudentController.java

@@ -94,7 +94,7 @@ public Student updateStudent(@PathVariable String id, @RequestBody StudentReques
   }
 
   /**
-   * Maps the HTTP GET request, to get the lessons that the student atttends to the
+   * Maps the HTTP GET request, to get the lessons that the student attends to the
    * {@link StudentService#getLessonsById(String) get LessonsById}
    * function of the student service.
    *

server/src/main/java/de/uftos/controller/SubjectController.java

@@ -89,7 +89,7 @@ public Subject updateSubject(@PathVariable String id, @RequestBody SubjectReques
   }
 
   /**
-   * Maps the HTTP DELETE request to the {@link SubjectService#delete(String) delete} function
+   * Maps the HTTP DELETE request to the {@link SubjectService#deleteSubjects(String[])}  delete function
    * of the subject service.
    *
    * @param ids the ID sof the subject which are to be deleted.

server/src/main/java/de/uftos/dto/responsedtos/CurriculumResponseDto.java

@@ -25,7 +25,6 @@ public record CurriculumResponseDto(@NotEmpty String id, @NotEmpty String name,
    *
    * @param curriculum the Curriculum whose information should be included
    *                   in the CurriculumResponseDto.
-   * @return the CurriculumResponseDto containing information about the Curriculum.
    */
   public CurriculumResponseDto(Curriculum curriculum) {
     this(curriculum.getId(), curriculum.getName(),

server/src/main/java/de/uftos/entities/Server.java

@@ -38,7 +38,7 @@ public class Server {
    *
    * @param timetableMetadata the timetable metadata, including information like start of the day.
    * @param currentYear       the current year.
-   * @param email             the email address notifications should be send to.
+   * @param email             the email address notifications should be sent to.
    */
   public Server(TimetableMetadata timetableMetadata, String currentYear, String email) {
     this.timetableMetadata = timetableMetadata;

server/src/main/java/de/uftos/repositories/database/ConstraintInstanceRepository.java

@@ -40,7 +40,7 @@ public interface ConstraintInstanceRepository
            LEFT OUTER JOIN subjects su
                    ON su.id=args.value
            WHERE
-               te.first_name ILIKE cast(:arg as varchar) || '%' OR te.last_name ILIKE cast(:arg as varchar) || '%' 
+               te.first_name ILIKE cast(:arg as varchar) || '%' OR te.last_name ILIKE cast(:arg as varchar) || '%'
                OR te.acronym ILIKE cast(:arg as varchar) || '%'
                OR st.first_name ILIKE cast(:arg as varchar) || '%' OR st.last_name ILIKE cast(:arg as varchar) || '%'
                OR st_g.name ILIKE cast(:arg as varchar) || '%'

server/src/main/java/de/uftos/repositories/database/StudentGroupRepository.java

@@ -1,6 +1,5 @@
 package de.uftos.repositories.database;
 
-import de.uftos.entities.Grade;
 import de.uftos.entities.Student;
 import de.uftos.entities.StudentGroup;
 import de.uftos.entities.Subject;
@@ -28,8 +27,6 @@ public interface StudentGroupRepository
 
   List<StudentGroup> findBySubjects(Subject subject);
 
-  List<StudentGroup> findByGrades(Grade grade);
-
   @Query("SELECT sg FROM student_groups sg LEFT JOIN sg.grades g WHERE g.id IN :gradeIds")
   List<StudentGroup> findAllByGrades(List<String> gradeIds);
 

server/src/main/java/de/uftos/repositories/solver/SolverRepositoryImpl.java

@@ -51,7 +51,7 @@
 import org.springframework.stereotype.Repository;
 
 /**
- * This class represents a implementation of the SolverRepository interface utilizing the Timefold solver.
+ * This class represents an implementation of the SolverRepository interface utilizing the Timefold solver.
  */
 @Repository
 public class SolverRepositoryImpl implements SolverRepository {

server/src/main/java/de/uftos/repositories/solver/timefold/domain/NumberTimefoldInstance.java

@@ -6,8 +6,8 @@
 /**
  * This class models a number that can be used by the Timefold solver.
  */
+@Getter
 public class NumberTimefoldInstance implements ResourceTimefoldInstance {
-  @Getter
   private final int value;
 
   public NumberTimefoldInstance(int value) {
@@ -31,7 +31,7 @@ public boolean equals(Object o) {
     }
     return n.value == this.value;
   }
-  
+
   @Override
   public int hashCode() {
     return this.value;

server/src/main/java/de/uftos/services/TimeslotService.java

@@ -65,7 +65,7 @@ public Timeslot getById(String id) {
     Optional<Timeslot> timeslot = this.repository.findById(id);
 
     return timeslot.orElseThrow(() -> new ResponseStatusException(HttpStatus.BAD_REQUEST,
-        "Could not find a timesot with this id"));
+        "Could not find a timeslot with this id"));
   }
 
   /**

server/src/main/java/de/uftos/services/TimetableService.java

@@ -55,7 +55,6 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Optional;
-import java.util.concurrent.ExecutionException;
 import java.util.function.Consumer;
 import org.apache.coyote.BadRequestException;
 import org.springframework.beans.factory.annotation.Autowired;