bold names work without bug

src/main/java/com/example/application/utils/StringUtils.java

@@ -1,9 +1,18 @@
 package com.example.application.utils;
 
+import org.apache.commons.lang3.RandomStringUtils;
+
+import java.util.HashSet;
+import java.util.Set;
+
 public class StringUtils {
     private StringUtils() {
     }
 
+    ////////////////
+    // Formatting //
+    ////////////////
+
     public static String getResultString(Double first, Double second) {
         String firstString = first.toString().replace(".0", "");
         String secondString = second.toString().replace(".0", "");
@@ -22,4 +31,29 @@ public class StringUtils {
     public static String getHtmlStringForPlayer(String playerName, String playerNickname) {
         return String.format("<b>%s</b> (%s)", playerName, playerNickname);
     }
+
+    public static String getTemplateItemString(String propertyName) {
+        return String.format("[[item.%s]]", propertyName);
+    }
+
+    ////////////////
+    // Randomness //
+    ////////////////
+
+    private static final int RANDOM_STRING_LENGTH = 10;
+    private static final Set<String> usedRandomStrings = new HashSet<>();
+
+    public static String getNewRandomString() {
+        String randomString = getRandomString();
+        while (usedRandomStrings.contains(randomString)) {
+            randomString = getRandomString();
+        }
+        usedRandomStrings.add(randomString);
+        return randomString;
+    }
+
+    private static String getRandomString() {
+        return RandomStringUtils.randomAlphabetic(RANDOM_STRING_LENGTH);
+    }
+
 }

src/main/java/com/example/application/utils/VaadinUtils.java

@@ -9,9 +9,12 @@ public class VaadinUtils {
     }
 
     public static <SOURCE> TemplateRenderer<SOURCE> getPlayerRenderer(ValueProvider<SOURCE, Player> playerProvider) {
-        return TemplateRenderer.<SOURCE>of(StringUtils.getHtmlStringForPlayer("[[item.name]]", "[[item.nickname]]"))
-                .withProperty("name", (ValueProvider<SOURCE, String>) source -> playerProvider.apply(source).getName())
-                .withProperty("nickname", (ValueProvider<SOURCE, String>) source -> playerProvider.apply(source).getNickname());
+        String name = StringUtils.getNewRandomString();
+        String nickname = StringUtils.getNewRandomString();
+        String itemName = StringUtils.getTemplateItemString(name);
+        String itemNickname = StringUtils.getTemplateItemString(nickname);
+        return TemplateRenderer.<SOURCE>of(StringUtils.getHtmlStringForPlayer(itemName, itemNickname))
+                .withProperty(name, (ValueProvider<SOURCE, String>) source -> playerProvider.apply(source).getName())
+                .withProperty(nickname, (ValueProvider<SOURCE, String>) source -> playerProvider.apply(source).getNickname());
     }
-
 }

src/main/java/com/example/application/views/results/ResultsView.java

@@ -1,7 +1,6 @@
 package com.example.application.views.results;
 
 import com.example.application.data.bean.CalculatedMatch;
-import com.example.application.data.entity.Player;
 import com.example.application.data.service.MatchService;
 import com.example.application.data.service.MatchdayService;
 import com.example.application.data.service.SeasonService;
@@ -9,7 +8,8 @@ import com.example.application.utils.StringUtils;
 import com.example.application.utils.VaadinUtils;
 import com.example.application.views.abstractnavigation.SeasonAndMatchdayNavigationView;
 import com.example.application.views.main.MainView;
-import com.vaadin.flow.component.*;
+import com.vaadin.flow.component.ClickEvent;
+import com.vaadin.flow.component.ComponentEventListener;
 import com.vaadin.flow.component.button.Button;
 import com.vaadin.flow.component.dependency.CssImport;
 import com.vaadin.flow.component.grid.ColumnTextAlign;
@@ -21,9 +21,9 @@ import com.vaadin.flow.component.icon.VaadinIcon;
 import com.vaadin.flow.component.orderedlayout.FlexComponent;
 import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.component.orderedlayout.VerticalLayout;
-import com.vaadin.flow.data.renderer.TemplateRenderer;
 import com.vaadin.flow.function.ValueProvider;
-import com.vaadin.flow.router.*;
+import com.vaadin.flow.router.PageTitle;
+import com.vaadin.flow.router.Route;
 import org.springframework.beans.factory.annotation.Autowired;
 
 @CssImport("./views/results/results-view.css")
@@ -102,7 +102,7 @@ public class ResultsView extends SeasonAndMatchdayNavigationView {
     }
 
     private void configureMatchdayLayout() {
-        getMatchdayHeader().addClassName("big_header"); // add dates
+        getMatchdayHeader().addClassName("big_header"); // TODO: add dates
 
         getMatchdayLayout().setPadding(false);
         getMatchdayLayout().add(getMatchdayHeader(), getGrid());
@@ -114,8 +114,7 @@ public class ResultsView extends SeasonAndMatchdayNavigationView {
         Label headerPlayer2 = new Label("Player 2");
         headerPlayer2.addClassName("column_header");
 
-//        getGrid().addColumn(VaadinUtils.getPlayerRenderer(CalculatedMatch::getPlayer1))
-        getGrid().addColumn((ValueProvider<CalculatedMatch, Player>) CalculatedMatch::getPlayer1)
+        getGrid().addColumn(VaadinUtils.getPlayerRenderer(CalculatedMatch::getPlayer1))
                 .setHeader(headerPlayer1)
                 .setTextAlign(ColumnTextAlign.END)
                 .setWidth("13em");
@@ -125,8 +124,7 @@ public class ResultsView extends SeasonAndMatchdayNavigationView {
                 .setTextAlign(ColumnTextAlign.CENTER)
                 .setWidth("6em");
 
-//        getGrid().addColumn(VaadinUtils.getPlayerRenderer(CalculatedMatch::getPlayer2))
-        getGrid().addColumn((ValueProvider<CalculatedMatch, Player>) CalculatedMatch::getPlayer2)
+        getGrid().addColumn(VaadinUtils.getPlayerRenderer(CalculatedMatch::getPlayer2))
                 .setHeader(headerPlayer2)
                 .setTextAlign(ColumnTextAlign.START)
                 .setWidth("13em");
@@ -134,7 +132,6 @@ public class ResultsView extends SeasonAndMatchdayNavigationView {
         getGrid().setWidth("32em");
         getGrid().setHeightByRows(true);
 
-//        getGrid().addClassName("my_grid");
         getGrid().addThemeVariants(GridVariant.LUMO_NO_BORDER,
                 GridVariant.LUMO_NO_ROW_BORDERS, GridVariant.LUMO_ROW_STRIPES);
     }