@Override
public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(server.getMessenger(), source, channel, message);
    if (getHandle().connection == null) return;

    if (channels.contains(channel) || SpigotConfig.bungee) {
        SPacketCustomPayload packet = new SPacketCustomPayload(channel, new PacketBuffer(Unpooled.wrappedBuffer(message)));
        getHandle().connection.sendPacket(packet);
    }
}
 

public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(server.getMessenger(), source, channel, message);

    for (Player player : getPlayers()) {
        player.sendPluginMessage(source, channel, message);
    }
}
 

@Override
public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(getMessenger(), source, channel, message);

    for (Player player : getOnlinePlayers()) {
        player.sendPluginMessage(source, channel, message);
    }
}
 

public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(server.getMessenger(), source, channel, message);
    if (getHandle().playerNetServerHandler == null) return;

    if (channels.contains(channel)) {
        net.minecraft.network.play.server.S3FPacketCustomPayload packet = new net.minecraft.network.play.server.S3FPacketCustomPayload(channel, message);
        getHandle().playerNetServerHandler.sendPacket(packet);
    }
}
 

public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(server.getMessenger(), source, channel, message);

    for (Player player : getPlayers()) {
        player.sendPluginMessage(source, channel, message);
    }
}
 

@Override
public void sendPluginMessage(Plugin source, String channel, byte[] message) {
    StandardMessenger.validatePluginMessage(getMessenger(), source, channel, message);

    for (Player player : getOnlinePlayers()) {
        player.sendPluginMessage(source, channel, message);
    }
}
 

@Test
public void testUnregister() throws Exception {
    PowerMockito.mockStatic(Bukkit.class);
    Mockito.when(Bukkit.getPluginManager()).thenReturn(PowerMockito.mock(SimplePluginManager.class));
    Mockito.when(Bukkit.getMessenger()).thenReturn(PowerMockito.mock(StandardMessenger.class));
    Mockito.when(Bukkit.getScheduler()).thenReturn(PowerMockito.mock(BukkitScheduler.class));

    Plugin plugin = PowerMockito.mock(Plugin.class);

    ReplaceManager replaceManager = new ReplaceManager(null, plugin, LoggerFactory.getLogger("test"));
    replaceManager.register(new Replacer(plugin, "test").scoreSupply(() -> 1));
}