remove AbsSender field for command and instead reach it in on each execute call -> so one command could be reached to multiple bot in parallel

src/main/java/org/telegram/telegrambots/api/commands/BotCommand.java

@@ -16,7 +16,6 @@ public abstract class BotCommand {
 
     private final String commandIdentifier;
     private final String description;
-    private AbsSender absSender;
 
     /**
      * construct a command
@@ -60,27 +59,12 @@ public abstract class BotCommand {
         return description;
     }
 
-    /**
-     * Setter
-     * @param absSender set AbsSender
-     */
-    public final void setAbsSender(AbsSender absSender) {
-        this.absSender = absSender;
-    }
-
-    /**
-     * Getter
-     * @return the absSender
-     */
-    protected final AbsSender getAbsSender() {
-        return absSender;
-    }
-
     /**
      * execute the command
      *
-     * @param arguments passed arguments
+     * @param absSender absSender to send messages over
      * @param chat      the chat, to be able to send replies
+     * @param arguments passed arguments
      */
-    public abstract void execute(String[] arguments, Chat chat);
+    public abstract void execute(AbsSender absSender, Chat chat, String[] arguments);
 }

src/main/java/org/telegram/telegrambots/api/commands/CommandRegistry.java

@@ -1,6 +1,7 @@
 package org.telegram.telegrambots.api.commands;
 
 import org.telegram.telegrambots.api.objects.Message;
+import org.telegram.telegrambots.bots.AbsSender;
 
 import java.util.Arrays;
 import java.util.Collection;
@@ -65,7 +66,7 @@ public final class CommandRegistry implements ICommandRegistry {
      * @param message input message
      * @return        true if success or false otherwise
      */
-    public final boolean executeCommand(Message message) {
+    public final boolean executeCommand(AbsSender absSender, Message message) {
         if (message.hasText()) {
             String text = message.getText();
             if (!text.isEmpty() && text.startsWith(BotCommand.COMMAND_INIT_CHARACTER)) {
@@ -76,7 +77,7 @@ public final class CommandRegistry implements ICommandRegistry {
 
                 if (commandRegistryMap.containsKey(command)) {
                     String[] parameters = Arrays.copyOfRange(commandSplit, 1, commandSplit.length);
-                    commandRegistryMap.get(command).execute(parameters, message.getChat());
+                    commandRegistryMap.get(command).execute(absSender, message.getChat(), parameters);
                     return true;
                 }
             }

src/main/java/org/telegram/telegrambots/api/commands/HelpBotCommand.java

@@ -4,6 +4,7 @@ import org.telegram.telegrambots.BotLogger;
 import org.telegram.telegrambots.TelegramApiException;
 import org.telegram.telegrambots.api.methods.send.SendMessage;
 import org.telegram.telegrambots.api.objects.Chat;
+import org.telegram.telegrambots.bots.AbsSender;
 
 /**
  * standard help command, which gets registered by default, to supply a list of all available commands
@@ -21,7 +22,7 @@ public class HelpBotCommand extends BotCommand {
     }
 
     @Override
-    public void execute(String[] arguments, Chat chat) {
+    public void execute(AbsSender absSender, Chat chat, String[] arguments) {
 
         for (BotCommand registeredBotCommand : commandRegistry.getRegisteredCommands()) {
             SendMessage sendMessage = new SendMessage();
@@ -30,7 +31,7 @@ public class HelpBotCommand extends BotCommand {
             sendMessage.setText("<b>" + COMMAND_INIT_CHARACTER + registeredBotCommand.getCommandIdentifier() + "</b>\n" + registeredBotCommand.getDescription());
 
             try {
-                getAbsSender().sendMessage(sendMessage);
+                absSender.sendMessage(sendMessage);
             } catch (TelegramApiException e) {
                 BotLogger.error("Failed to send HelpMessage", LOGTAG, e);
             }

src/main/java/org/telegram/telegrambots/bots/TelegramLongPollingCommandBot.java

@@ -35,7 +35,7 @@ public abstract class TelegramLongPollingCommandBot extends AbsSender implements
         if (update.hasMessage()) {
             Message message = update.getMessage();
             if (message.isCommand()) {
-                if (!commandRegistry.executeCommand(message)) {
+                if (!commandRegistry.executeCommand(this, message)) {
                     SendMessage sendMessage = new SendMessage();
                     sendMessage.setChatId(message.getChatId().toString());
                     sendMessage.setText("The command you provided is not registered for this bot");
@@ -53,29 +53,21 @@ public abstract class TelegramLongPollingCommandBot extends AbsSender implements
 
     @Override
     public final boolean register(BotCommand botCommand) {
-        botCommand.setAbsSender(this);
         return commandRegistry.register(botCommand);
     }
 
     @Override
     public final Map<BotCommand, Boolean> registerAll(BotCommand... botCommands) {
-        for (BotCommand botCommand : botCommands) {
-            botCommand.setAbsSender(this);
-        }
         return commandRegistry.registerAll(botCommands);
     }
 
     @Override
     public final boolean deregister(BotCommand botCommand) {
-        botCommand.setAbsSender(null);
         return commandRegistry.deregister(botCommand);
     }
 
     @Override
     public final Map<BotCommand, Boolean> deregisterAll(BotCommand... botCommands) {
-        for (BotCommand botCommand : botCommands) {
-            botCommand.setAbsSender(null);
-        }
         return commandRegistry.deregisterAll(botCommands);
     }