worldBorderApiRegisteredServiceProvider always returning null

[EnriqueGF]

Describe the bug
My plugin is set to start before all plugins, so I wait 30 tics before instanciating the worldBorderApiRegisteredServiceProvider. But no matters how much time I wait, the worldBorderApiRegisteredServiceProvider is always null....

My main:

package devep;

import com.github.yannicklamprecht.worldborder.api.WorldBorderApi;
import org.bukkit.*;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.RegisteredServiceProvider;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;

public class SalvosMCRPG extends JavaPlugin {

    public static DB db;
    public static Plugin plugin;
    public static Location spawnLocation;
    public static WorldBorderApi worldBorderAPI;

    @Override
    public void onEnable(){

        this.plugin = this;
        //db = new DB(this.getLogger());

        getServer().getPluginManager().registerEvents(new EventListener(), SalvosMCRPG.plugin);
        getServer().getPluginManager().registerEvents(new SwordAbilitySystem(), SalvosMCRPG.plugin);

        new BukkitRunnable() {
            @Override
            public void run() {

                RegisteredServiceProvider<WorldBorderApi> worldBorderApiRegisteredServiceProvider = SalvosMCRPG.plugin.getServer().getServicesManager().getRegistration(WorldBorderApi.class);

                if (worldBorderApiRegisteredServiceProvider == null) {
                    getLogger().info("ERROR WorldBorder API not found");
                    getServer().getPluginManager().disablePlugin(SalvosMCRPG.plugin);
                    return;
                }

                WorldBorderApi worldBorderAPI = worldBorderApiRegisteredServiceProvider.getProvider();
                if (worldBorderAPI != null) {
                    getLogger().info("[SalvosMC-RPG] WorldBorderApi Cargado");
                }

                SalvosMCRPG.worldBorderAPI = worldBorderAPI;

            }

        }.runTaskLater(plugin, 30);

        Bukkit.getLogger().info("[SalvosMC-RPG] Iniciado y cargado");
    }

    @Override
    public void onDisable(){
        //Fired when the server stops and disables all plugins
    }

}

My pom:

<?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>000001</groupId>
    <artifactId>SalvosMC-RPG</artifactId>
    <version>1.0-SNAPSHOT</version>
    <build>
        <resources>
            <resource>
                <directory>${basedir}/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>*</include>
                </includes>
            </resource>
        </resources>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.4</version>
                <configuration>
                    <!-- put your configurations here -->
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>spigot-repo</id>
            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
        </repository>
        <repository>
            <id>eldonexus</id>
            <url>https://eldonexus.de/repository/maven-releases/</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>org.spigotmc</groupId>
            <artifactId>spigot-api</artifactId>
            <version>1.17.1-R0.1-SNAPSHOT</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>
        <dependency>
            <groupId>com.github.yannicklamprecht.worldborderapi</groupId>
            <artifactId>api</artifactId>
            <version>1.170.0</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.6</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>16</maven.compiler.source>
        <maven.compiler.target>16</maven.compiler.target>
        <java.version>16</java.version>
    </properties>
</project>

My plugin.yml:

name: SalvosMC-RPG
version: 0.1
author: Enrique
main: devep.SalvosMCRPG
api-version: 1.16
depend: [WorldBorderAPI]
load: STARTUP

I have to say that worldborderapiplugin-1.171.0-all.jar is in plugin folder and is correctly loaded.

Thanks you

[yannicklamprecht]

Do not shade the plugin. Switch to scope provided. Updated Readme, expected developers to know what they're doing when using shade plugin.

[EnriqueGF]

Do not shade the plugin. Switch to scope provided. Updated Readme, expected developers to know what they're doing when using shade plugin.

Hello, first of all sorry about that, I dont develop compiled applications usually.

Switching to scope provided solved the issue.

Thank's you very much.