Minor cleaUp

src/main/java/at/ac/uibk/gitsearch/repository/search/MetaDataRepository.java

 package at.ac.uibk.gitsearch.repository.search;
 
-import at.ac.uibk.gitsearch.domain.Authority;
-import at.ac.uibk.gitsearch.service.dto.AutoCompleteEntry;
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.DeserializationFeature;
-import com.fasterxml.jackson.databind.JsonMappingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import java.io.IOException;
 import java.time.Instant;
 import java.util.ArrayList;
@@ -21,14 +14,15 @@ import java.util.StringTokenizer;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.TreeMap;
-import java.util.concurrent.CancellationException;
 import java.util.function.Consumer;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
+
 import javax.annotation.PostConstruct;
 import javax.ws.rs.NotFoundException;
+
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -58,6 +52,15 @@ import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.userdetails.User;
 import org.springframework.stereotype.Repository;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+
+import at.ac.uibk.gitsearch.domain.Authority;
+import at.ac.uibk.gitsearch.service.dto.AutoCompleteEntry;
+
 @Repository
 public class MetaDataRepository {
 

src/main/java/at/ac/uibk/gitsearch/web/rest/ExerciseResource.java

 package at.ac.uibk.gitsearch.web.rest;
 
-import at.ac.uibk.gitsearch.es.model.ArtemisExerciseInfo;
-import at.ac.uibk.gitsearch.security.SecurityUtils;
-import at.ac.uibk.gitsearch.service.ArtemisImportError;
-import at.ac.uibk.gitsearch.service.ExerciseService;
-import at.ac.uibk.gitsearch.service.GitlabService;
-import at.ac.uibk.gitsearch.service.SearchService;
-import at.ac.uibk.gitsearch.service.SearchService.ExtractionDepth;
-import at.ac.uibk.gitsearch.service.StatisticsService;
-import at.ac.uibk.gitsearch.service.dto.StatisticsDTO;
-import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
-import at.ac.uibk.gitsearch.web.util.HeaderUtil;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
@@ -23,8 +12,10 @@ import java.net.URL;
 import java.nio.file.Files;
 import java.text.ParseException;
 import java.util.Optional;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.ws.rs.core.Response;
+
 import org.apache.commons.lang3.StringUtils;
 import org.codeability.sharing.plugins.api.search.SearchResultDTO;
 import org.codeability.sharing.plugins.api.search.util.ExerciseId;
@@ -39,7 +30,6 @@ import org.springframework.core.io.Resource;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
-import org.springframework.util.AntPathMatcher;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -49,6 +39,18 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.HandlerMapping;
 
+import at.ac.uibk.gitsearch.es.model.ArtemisExerciseInfo;
+import at.ac.uibk.gitsearch.security.SecurityUtils;
+import at.ac.uibk.gitsearch.service.ArtemisImportError;
+import at.ac.uibk.gitsearch.service.ExerciseService;
+import at.ac.uibk.gitsearch.service.GitlabService;
+import at.ac.uibk.gitsearch.service.SearchService;
+import at.ac.uibk.gitsearch.service.SearchService.ExtractionDepth;
+import at.ac.uibk.gitsearch.service.StatisticsService;
+import at.ac.uibk.gitsearch.service.dto.StatisticsDTO;
+import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
+import at.ac.uibk.gitsearch.web.util.HeaderUtil;
+
 /**
  * this resource should give access to various aspects of an exercise or course
  * @author Michael Breu

src/main/java/at/ac/uibk/gitsearch/web/rest/LikesResource.java

 package at.ac.uibk.gitsearch.web.rest;
 
-import at.ac.uibk.gitsearch.domain.Likes;
-import at.ac.uibk.gitsearch.service.LikesQueryService;
-import at.ac.uibk.gitsearch.service.LikesService;
-import at.ac.uibk.gitsearch.service.SearchService;
-import at.ac.uibk.gitsearch.service.UserService;
-import at.ac.uibk.gitsearch.service.dto.LikesCriteria;
-import at.ac.uibk.gitsearch.web.rest.errors.BadRequestAlertException;
-import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.time.LocalDate;
 import java.util.List;
 import java.util.Optional;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.validation.Valid;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
-import org.springframework.util.AntPathMatcher;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -30,6 +23,15 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.HandlerMapping;
+
+import at.ac.uibk.gitsearch.domain.Likes;
+import at.ac.uibk.gitsearch.service.LikesQueryService;
+import at.ac.uibk.gitsearch.service.LikesService;
+import at.ac.uibk.gitsearch.service.SearchService;
+import at.ac.uibk.gitsearch.service.UserService;
+import at.ac.uibk.gitsearch.service.dto.LikesCriteria;
+import at.ac.uibk.gitsearch.web.rest.errors.BadRequestAlertException;
+import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
 import tech.jhipster.web.util.HeaderUtil;
 import tech.jhipster.web.util.ResponseUtil;
 

src/main/java/at/ac/uibk/gitsearch/web/rest/StatisticsResource.java

 package at.ac.uibk.gitsearch.web.rest;
 
-import at.ac.uibk.gitsearch.repository.StatisticsRepository;
-import at.ac.uibk.gitsearch.service.SearchService;
-import at.ac.uibk.gitsearch.service.StatisticsService;
-import at.ac.uibk.gitsearch.service.dto.StatisticsDTO;
-import at.ac.uibk.gitsearch.web.rest.errors.BadRequestAlertException;
-import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.nio.charset.Charset;
 import java.util.List;
 import java.util.Optional;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.validation.Valid;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -21,7 +16,6 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
-import org.springframework.util.AntPathMatcher;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -32,6 +26,13 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.HandlerMapping;
 import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+import at.ac.uibk.gitsearch.repository.StatisticsRepository;
+import at.ac.uibk.gitsearch.service.SearchService;
+import at.ac.uibk.gitsearch.service.StatisticsService;
+import at.ac.uibk.gitsearch.service.dto.StatisticsDTO;
+import at.ac.uibk.gitsearch.web.rest.errors.BadRequestAlertException;
+import at.ac.uibk.gitsearch.web.rest.utils.RestUtils;
 import tech.jhipster.web.util.HeaderUtil;
 import tech.jhipster.web.util.PaginationUtil;
 import tech.jhipster.web.util.ResponseUtil;
@@ -167,7 +168,7 @@ public class StatisticsResource {
 
         // TODO there is a race condition, if serveral parallel requests do not find an entry.
         if (searchService.findExerciseById(exerciseId).isPresent()) {
-        	// the exercise exists in the meta data search index
+            // the exercise exists in the meta data search index
             StatisticsDTO newStats = new StatisticsDTO();
             newStats.setDownloads(0);
             newStats.setViews(1);