Hibernate warning fixes

pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.5.6</version>
+        <version>3.5.7</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>nl.connected-it</groupId>
@@ -50,10 +50,7 @@
             <artifactId>h2</artifactId>
             <scope>runtime</scope>
         </dependency>
-        <dependency>
+
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-security</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>

src/main/java/nl/connectedit/swiss/domain/entity/Event.java

@@ -26,7 +26,7 @@ public class Event extends AbstractEntity {
     @ManyToOne
     private Tournament tournament;
 
-    @OneToMany(cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
+    @OneToMany(mappedBy = "event", cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
     private List<Registration> registrations;
 
     @Enumerated(EnumType.STRING)

src/main/java/nl/connectedit/swiss/domain/entity/Match.java

@@ -30,9 +30,11 @@ public class Match extends AbstractEntity {
     private Round round;
 
     @ManyToOne
+    @JoinColumn(name = "team1_id")
     private Team team1;
 
     @ManyToOne
+    @JoinColumn(name = "team2_id")
     private Team team2;
 
     private Boolean played;

src/main/java/nl/connectedit/swiss/domain/entity/Player.java

@@ -58,11 +58,11 @@ public class Player extends AbstractEntity {
     @Enumerated(EnumType.STRING)
     private PlayerStrength strength;
 
-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    @OneToMany(mappedBy = "player", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    private List<Registration> registrations;// = new ArrayList<>();
+    private List<Registration> registrations;
 
-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    @OneToMany(mappedBy = "partner", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    private List<Registration> partnerRegistrations;// = new ArrayList<>();
+    private List<Registration> partnerRegistrations;
 
     public String getFullName() {
         return hasLength(middleName) ?

src/main/java/nl/connectedit/swiss/domain/entity/Registration.java

@@ -20,8 +20,8 @@ public class Registration extends AbstractEntity {
     @ManyToOne
     private Event event;
 
-    @ManyToOne
+//    @ManyToOne
-    private Tournament tournament;
+//    private Tournament tournament;
 
     @ManyToOne
     @JoinColumn(name = "player_id")

src/main/java/nl/connectedit/swiss/domain/entity/Round.java

@@ -27,7 +27,7 @@ public class Round extends AbstractEntity {
 
     private Status status;
 
-    @OneToMany(cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
+    @OneToMany(mappedBy = "round", cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
     @OrderBy("id")
     private List<Match> matches;
 

src/main/java/nl/connectedit/swiss/domain/entity/Tournament.java

@@ -35,7 +35,7 @@ public class Tournament extends AbstractEntity {
     @Enumerated(EnumType.STRING)
     private TournamentStatus status;
 
-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    @OneToMany(mappedBy = "tournament", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     private List<Event> events;
 
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)

src/main/java/nl/connectedit/swiss/mapper/TournamentMapper.java

@@ -94,6 +94,7 @@ public class TournamentMapper implements DtoMapper<Tournament, TournamentDto>, E
     var playersCounting = new ArrayList<Long>();
 
     for (var event : tournament.getEvents()) {
+      if (event.getGroups() != null) {
         for (var group : event.getGroups()) {
           for (var round : group.getRounds()) {
             for (var match : round.getMatches()) {
@@ -107,6 +108,7 @@ public class TournamentMapper implements DtoMapper<Tournament, TournamentDto>, E
           }
         }
       }
+    }
     return playersCounting;
   }
 
@@ -114,6 +116,7 @@ public class TournamentMapper implements DtoMapper<Tournament, TournamentDto>, E
     var playersPlaying = new ArrayList<Long>();
 
     for (var event : tournament.getEvents()) {
+      if (event.getGroups() != null) {
         for (var group : event.getGroups()) {
           for (var round : group.getRounds()) {
             for (var match : round.getMatches()) {
@@ -124,11 +127,16 @@ public class TournamentMapper implements DtoMapper<Tournament, TournamentDto>, E
           }
         }
       }
+    }
 
     return playersPlaying;
   }
 
   private List<Long> getPlayersAvailable(Tournament tournament) {
+    if (tournament.getTournamentPlayers() == null) {
+      return List.of();
+    }
+
     var playersAvailable = tournament.getTournamentPlayers()
       .stream()
       .map(TournamentPlayer::getId)

src/main/java/nl/connectedit/swiss/service/RegistrationService.java

@@ -27,7 +27,7 @@ public class RegistrationService {
         .findAny();
       if (optionalExistingPlayerRegistration.isEmpty()) { // no previous registration for this event
         var newRegistration = new Registration();
-        newRegistration.setTournament(tournament);
+//        newRegistration.setTournament(tournament);
         newRegistration.setEvent(event);
         newRegistration.setPlayer(player);
         if (eventRegistration.getPartner() != null) {