Initial version

.gitignore

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+# User-specific stuff
+.idea/
+
+*.iml
+*.ipr
+*.iws
+
+# IntelliJ
+out/
+
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+target/
+
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+.flattened-pom.xml
+
+# Common working directory
+run/

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>me.firephoenix</groupId>
+    <artifactId>deathcounter</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>deathcounter</name>
+
+    <properties>
+        <java.version>21</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <build>
+        <defaultGoal>clean package</defaultGoal>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.13.0</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.5.3</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>papermc-repo</id>
+            <url>https://repo.papermc.io/repository/maven-public/</url>
+        </repository>
+        <repository>
+            <id>placeholderapi</id>
+            <url>https://repo.extendedclip.com/releases/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.papermc.paper</groupId>
+            <artifactId>paper-api</artifactId>
+            <version>1.21.10-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.xerial/sqlite-jdbc -->
+        <dependency>
+            <groupId>org.xerial</groupId>
+            <artifactId>sqlite-jdbc</artifactId>
+            <version>3.51.1.0</version>
+        </dependency>
+        <dependency>
+            <groupId>me.clip</groupId>
+            <artifactId>placeholderapi</artifactId>
+            <version>2.11.7</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/me/firephoenix/deathcounter/DeathCounter.java

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+package me.firephoenix.deathcounter;
+
+import me.clip.placeholderapi.PlaceholderAPI;
+import me.firephoenix.deathcounter.listener.DeathListener;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.sql.*;
+import java.util.HashMap;
+import java.util.UUID;
+import java.util.logging.Level;
+
+public final class DeathCounter extends JavaPlugin {
+    public String dataBaseURL;
+    public HashMap<UUID, Integer> playerDeaths = new HashMap<>();
+
+    public HashMap<UUID, Integer> getPlayerDeaths() {
+        return playerDeaths;
+    }
+
+    public String getDataBaseURL() {
+        return dataBaseURL;
+    }
+
+    @Override
+    public void onEnable() {
+        // Plugin startup logic
+        this.saveDefaultConfig();
+
+        Bukkit.getServer().getPluginManager().registerEvents(new DeathListener(this), this);
+
+        dataBaseURL = "jdbc:sqlite:" + this.getDataPath() + "/deaths.db";
+
+        createSqLiteDatabase();
+
+        if (Bukkit.getPluginManager().isPluginEnabled("PlaceholderAPI")) { //
+            new DeathPlaceholderExpansion(this).register(); //
+        }
+    }
+
+    private void createSqLiteDatabase() {
+        try (var conn = DriverManager.getConnection(dataBaseURL)) {
+            if (conn != null) {
+                String sql = "CREATE TABLE IF NOT EXISTS deaths_counts ("
+                        + " id BIGINT auto_increment,"
+                        + " uuid VARCHAR(36) NOT NULL UNIQUE,"
+                        + " deaths BIGINT NOT NULL,"
+                        + " primary key (id));";
+
+                Statement statement = conn.createStatement();
+                statement.execute(sql);
+            }
+        } catch (SQLException e) {
+            Bukkit.getLogger().log(Level.WARNING, e.getMessage());
+        }
+    }
+
+    public int requestDeathCountForPlayer(UUID uuid) {
+        //Search our cache first
+        if (getPlayerDeaths().containsKey(uuid)) {
+            return getPlayerDeaths().get(uuid);
+        } else {
+            int deaths = 0;
+            try (var conn = DriverManager.getConnection(this.getDataBaseURL())) {
+                if (conn != null) {
+                    String getSQL = "SELECT deaths FROM deaths_counts WHERE uuid = " + "'" + uuid + "'" + ";";
+
+                    Statement statement = conn.createStatement();
+                    ResultSet resultSet = statement.executeQuery(getSQL);
+
+                    if (resultSet.next()) {
+                        deaths = resultSet.getInt(1);
+                    }
+                }
+            } catch (SQLException e) {
+                throw new RuntimeException(e);
+            }
+
+            getPlayerDeaths().put(uuid, deaths);
+
+            return deaths;
+        }
+    }
+
+    @Override
+    public void onDisable() {
+        // Plugin shutdown logic
+    }
+}

src/main/java/me/firephoenix/deathcounter/DeathPlaceholderExpansion.java

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+package me.firephoenix.deathcounter;
+
+import me.clip.placeholderapi.expansion.PlaceholderExpansion;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author NieGestorben
+ * Copyright© (c) 2025, All Rights Reserved.
+ */
+public class DeathPlaceholderExpansion extends PlaceholderExpansion {
+
+    DeathCounter plugin;
+
+    public DeathPlaceholderExpansion(DeathCounter plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public @NotNull List<String> getPlaceholders() {
+        ArrayList<String> placeholders = new ArrayList<>();
+        placeholders.add("%deathcount%");
+
+        return placeholders;
+    }
+
+    @Override
+    public String onRequest(OfflinePlayer player, @NotNull String params) {
+        int deaths = plugin.requestDeathCountForPlayer(player.getUniqueId());
+
+        return String.valueOf(deaths);
+    }
+
+    @Override
+    public String onPlaceholderRequest(Player player, @NotNull String params) {
+        int deaths = plugin.requestDeathCountForPlayer(player.getUniqueId());
+
+        return String.valueOf(deaths);
+    }
+
+    @Override
+    public @NotNull String getIdentifier() {
+        return "deathcounter";
+    }
+
+    @Override
+    public @NotNull String getAuthor() {
+        return "NieGestorben";
+    }
+
+    @Override
+    public @NotNull String getVersion() {
+        return "1.0.0";
+    }
+}

src/main/java/me/firephoenix/deathcounter/listener/DeathListener.java

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+package me.firephoenix.deathcounter.listener;
+
+import me.firephoenix.deathcounter.DeathCounter;
+import org.bukkit.Bukkit;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.PlayerDeathEvent;
+
+import java.sql.*;
+import java.util.UUID;
+import java.util.logging.Level;
+
+/**
+ * @author NieGestorben
+ * Copyright© (c) 2025, All Rights Reserved.
+ */
+public class DeathListener implements Listener {
+
+    public DeathCounter plugin;
+
+    public DeathListener(DeathCounter plugin) {
+        this.plugin = plugin;
+    }
+
+    @EventHandler
+    public void onPlayerDeath(PlayerDeathEvent event) {
+        UUID playerUUID = event.getPlayer().getUniqueId();
+
+        try (var conn = DriverManager.getConnection(plugin.getDataBaseURL())) {
+            if (conn != null) {
+                int deaths = plugin.requestDeathCountForPlayer(playerUUID);
+
+                deaths++;
+
+                //Updated cache
+                plugin.getPlayerDeaths().replace(playerUUID, deaths);
+
+                String updateSQL = "REPLACE INTO deaths_counts (uuid, deaths) VALUES ('" + playerUUID + "', " + deaths + ");";
+
+                Statement updateStatement = conn.createStatement();
+                updateStatement.execute(updateSQL);
+            }
+        } catch (SQLException e) {
+            Bukkit.getLogger().log(Level.WARNING, e.getMessage());
+        }
+    }
+
+}

src/main/resources/plugin.yml

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+name: DeathCounter
+version: '1.0'
+main: me.firephoenix.deathcounter.DeathCounter
+api-version: '1.21'
+description: Counts Deaths of all players via Scoreboard and Tablist
+depend: ["PlaceholderAPI"]