restore formatting

src/main/java/ch/puzzle/eft/ExamFeedbackToolApplication.java

@@ -1,11 +1,10 @@
 package ch.puzzle.eft;
 
+import nz.net.ultraq.thymeleaf.layoutdialect.LayoutDialect;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 
-import nz.net.ultraq.thymeleaf.layoutdialect.LayoutDialect;
-
 @SpringBootApplication
 public class ExamFeedbackToolApplication {
 

src/main/java/ch/puzzle/eft/controller/ExceptionController.java

@@ -2,7 +2,8 @@
 
 
 import ch.puzzle.eft.model.ErrorModel;
-
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
@@ -15,9 +16,6 @@
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.servlet.resource.NoResourceFoundException;
 
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpSession;
-
 @ControllerAdvice
 @Controller
 public class ExceptionController implements ErrorController {

src/main/java/ch/puzzle/eft/controller/SiteController.java

@@ -1,18 +1,16 @@
 package ch.puzzle.eft.controller;
 
-import java.util.Objects;
-
 import ch.puzzle.eft.model.ExamNumberForm;
 import ch.puzzle.eft.service.ExamService;
-
+import jakarta.validation.Valid;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.server.ResponseStatusException;
 
-import jakarta.validation.Valid;
+import java.util.Objects;
 
 @Controller
 public class SiteController {

src/main/java/ch/puzzle/eft/model/ExamModel.java

@@ -1,12 +1,12 @@
 package ch.puzzle.eft.model;
 
-import java.io.File;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.server.ResponseStatusException;
 
+import java.io.File;
+
 public class ExamModel {
     private final File file;
     private static final Logger logger = LoggerFactory.getLogger(ExamModel.class);

src/main/java/ch/puzzle/eft/service/ExamService.java

@@ -1,5 +1,13 @@
 package ch.puzzle.eft.service;
 
+import ch.puzzle.eft.model.ExamModel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.env.Environment;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.web.server.ResponseStatusException;
+
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
@@ -9,15 +17,6 @@
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
-import ch.puzzle.eft.model.ExamModel;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.core.env.Environment;
-import org.springframework.http.HttpStatus;
-import org.springframework.stereotype.Service;
-import org.springframework.web.server.ResponseStatusException;
-
 @Service
 public class ExamService {
     private static final Logger logger = LoggerFactory.getLogger(ExamService.class);

src/main/java/ch/puzzle/eft/service/ValidationService.java

@@ -1,10 +1,10 @@
 package ch.puzzle.eft.service;
 
+import org.springframework.stereotype.Service;
+
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.springframework.stereotype.Service;
-
 @Service
 public class ValidationService {
     private static final Pattern EXAM_NUMBER_PATTERN = Pattern.compile("^\\d{5}$");