diff --git a/README.md b/README.md
index 157edaf..cec752c 100644
--- a/README.md
+++ b/README.md
@@ -12,14 +12,14 @@ A **s**imple **D**iscord **c**ommand **f**ramework **for** **J**ava, supporting
 <dependency>
   <groupId>de.btobastian.sdcf4j</groupId>
   <artifactId>sdcf4j-core</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.2</version>
 </dependency>
 <!-- The module for your prefered lib-->
 <dependency>
   <groupId>de.btobastian.sdcf4j</groupId>
   <!-- Possible artifact ids: sdcf4j-javacord, sdcf4j-jda, sdcf4j-discord4j -->
   <artifactId>sdcf4j-javacord</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.2</version>
 </dependency>
 ```
 
@@ -28,7 +28,7 @@ A **s**imple **D**iscord **c**ommand **f**ramework **for** **J**ava, supporting
 * [Javacord server](https://discord.gg/0qJ2jjyneLEgG7y3)
 * [DiscordAPI #java_javacord channel](https://discord.gg/0SBTUU1wZTVXVKEo)
 
-You can find me on one of these servers/channels. Fell free to contact me if you need help. :)
+You can find me on one of these servers/channels. Feel free to contact me if you need help. :)
 
 #Download
 For those of you how don't use maven: [Jenkins](http://ci.ketrwu.de/job/sdcf4j/lastSuccessfulBuild/)
@@ -93,4 +93,4 @@ CommandHandler cmdHandler = new Discord4JHandler(client);
 
 // register the command
 cmdHandler.registerCommand(new PingCommand());
-```
+```
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index fbb370d..904058e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>de.btobastian.sdcf4j</groupId>
     <artifactId>sdcf4j</artifactId>
     <packaging>pom</packaging>
-    <version>1.0.1</version>
+    <version>1.0.2</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/sdcf4j-core/pom.xml b/sdcf4j-core/pom.xml
index f38dbac..1e79f52 100644
--- a/sdcf4j-core/pom.xml
+++ b/sdcf4j-core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>sdcf4j</artifactId>
         <groupId>de.btobastian.sdcf4j</groupId>
-        <version>1.0.1</version>
+        <version>1.0.2</version>
     </parent>
     <packaging>jar</packaging>
     <modelVersion>4.0.0</modelVersion>
diff --git a/sdcf4j-core/src/main/java/de/btobastian/sdcf4j/CommandHandler.java b/sdcf4j-core/src/main/java/de/btobastian/sdcf4j/CommandHandler.java
index 6202433..b5ab49f 100644
--- a/sdcf4j-core/src/main/java/de/btobastian/sdcf4j/CommandHandler.java
+++ b/sdcf4j-core/src/main/java/de/btobastian/sdcf4j/CommandHandler.java
@@ -20,6 +20,7 @@
 
 import java.lang.reflect.Method;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 
@@ -32,6 +33,8 @@ public abstract class CommandHandler {
     protected final List<SimpleCommand> commandList = new ArrayList<>();
     private final HashMap<String, List<String>> permissions = new HashMap<>();
 
+    protected String defaultPrefix = "";
+
     /**
      * Registers an executor.
      *
@@ -49,7 +52,7 @@ public void registerCommand(CommandExecutor executor) {
             SimpleCommand command = new SimpleCommand(annotation, method, executor);
             for (String alias : annotation.aliases()) {
                 // add command to map. It's faster to access it from the map than iterating to the whole list
-                commands.put(alias.toLowerCase(), command);
+                commands.put(defaultPrefix + alias.toLowerCase().replace(" ", ""), command);
             }
             // we need a list, too, because a HashMap is not ordered.
             commandList.add(command);
@@ -96,6 +99,39 @@ public boolean hasPermission(String userId, String permission) {
         return false;
     }
 
+    /**
+     * Gets a list with all commands in the order they were registered.
+     * This is useful for automatic help commands.
+     *
+     * @return A list with all commands the the order they were registered.
+     */
+    public List<SimpleCommand> getCommands() {
+        return Collections.unmodifiableList(commandList);
+    }
+
+    /**
+     * Sets the default command prefix.
+     * Changing the default prefix after registering a command has no effect!
+     *
+     * @param defaultPrefix The default command prefix.
+     */
+    public void setDefaultPrefix(String defaultPrefix) {
+        if (defaultPrefix == null) {
+            this.defaultPrefix = "";
+        } else {
+            this.defaultPrefix = defaultPrefix.replace(" ", "");
+        }
+    }
+
+    /**
+     * Gets the default command prefix.
+     *
+     * @return The default command prefix.
+     */
+    public String getDefaultPrefix() {
+        return defaultPrefix;
+    }
+
     /**
      * Checks if you are allowed to do something with the given permission.
      *
diff --git a/sdcf4j-discord4j/pom.xml b/sdcf4j-discord4j/pom.xml
index c680f47..20d89f3 100644
--- a/sdcf4j-discord4j/pom.xml
+++ b/sdcf4j-discord4j/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>sdcf4j</artifactId>
         <groupId>de.btobastian.sdcf4j</groupId>
-        <version>1.0.1</version>
+        <version>1.0.2</version>
     </parent>
     <packaging>jar</packaging>
     <modelVersion>4.0.0</modelVersion>
diff --git a/sdcf4j-discord4j/src/main/java/de/btobastian/sdcf4j/handler/Discord4JHandler.java b/sdcf4j-discord4j/src/main/java/de/btobastian/sdcf4j/handler/Discord4JHandler.java
index b1b831e..c40b733 100644
--- a/sdcf4j-discord4j/src/main/java/de/btobastian/sdcf4j/handler/Discord4JHandler.java
+++ b/sdcf4j-discord4j/src/main/java/de/btobastian/sdcf4j/handler/Discord4JHandler.java
@@ -168,10 +168,18 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         String[] args = Arrays.copyOfRange(splitMessage, 1, splitMessage.length);
         Class<?>[] parameterTypes = command.getMethod().getParameterTypes();
         final Object[] parameters = new Object[parameterTypes.length];
+        int stringCounter = 0;
         for (int i = 0; i < parameterTypes.length; i++) { // check all parameters
             Class<?> type = parameterTypes[i];
             if (type == String.class) {
-                parameters[i] = splitMessage[0];
+                if (stringCounter++ == 0) {
+                    parameters[i] = splitMessage[0]; // the first split is the command
+                } else {
+                    if (args.length + 2 > stringCounter) {
+                        // the first string parameter is the command, the other ones are the arguments
+                        parameters[i] = args[stringCounter - 2];
+                    }
+                }
             } else if (type == String[].class) {
                 parameters[i] = args;
             } else if (type == IMessage.class) {
@@ -184,6 +192,8 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
                 parameters[i] = event.getMessage().getAuthor();
             } else if (type == IGuild.class) {
                 parameters[i] = event.getMessage().getChannel().getGuild();
+            } else if (type == Object[].class) {
+                parameters[i] = getObjectsFromString(event.getClient(), args);
             } else {
                 // unknown type
                 parameters[i] = null;
@@ -192,4 +202,50 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         return parameters;
     }
 
+    /**
+     * Tries to get objects (like channel, user, integer) from the given strings.
+     *
+     * @param client The client.
+     * @param args The string array.
+     * @return An object array.
+     */
+    private Object[] getObjectsFromString(IDiscordClient client, String[] args) {
+        Object[] objects = new Object[args.length];
+        for (int i = 0; i < args.length; i++) {
+            objects[i] = getObjectFromString(client, args[i]);
+        }
+        return objects;
+    }
+
+    /**
+     * Tries to get an object (like channel, user, integer) from the given string.
+     *
+     * @param client The client.
+     * @param arg The string.
+     * @return The object.
+     */
+    private Object getObjectFromString(IDiscordClient client, String arg) {
+        try {
+            // test int
+            return Integer.valueOf(arg);
+        } catch (NumberFormatException e) {}
+        // test user
+        if (arg.matches("<@([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            IUser user = client.getUserByID(id);
+            if (user != null) {
+                return user;
+            }
+        }
+        // test channel
+        if (arg.matches("<#([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            IChannel channel = client.getChannelByID(id);
+            if (channel != null) {
+                return channel;
+            }
+        }
+        return arg;
+    }
+
 }
diff --git a/sdcf4j-javacord/pom.xml b/sdcf4j-javacord/pom.xml
index 0891738..3b74bc8 100644
--- a/sdcf4j-javacord/pom.xml
+++ b/sdcf4j-javacord/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>sdcf4j</artifactId>
         <groupId>de.btobastian.sdcf4j</groupId>
-        <version>1.0.1</version>
+        <version>1.0.2</version>
     </parent>
     <packaging>jar</packaging>
     <modelVersion>4.0.0</modelVersion>
diff --git a/sdcf4j-javacord/src/main/java/de/btobastian/sdcf4j/handler/JavacordHandler.java b/sdcf4j-javacord/src/main/java/de/btobastian/sdcf4j/handler/JavacordHandler.java
index ddaed7b..bedd1aa 100644
--- a/sdcf4j-javacord/src/main/java/de/btobastian/sdcf4j/handler/JavacordHandler.java
+++ b/sdcf4j-javacord/src/main/java/de/btobastian/sdcf4j/handler/JavacordHandler.java
@@ -31,7 +31,6 @@
 import de.btobastian.sdcf4j.Sdcf4jMessage;
 import org.slf4j.Logger;
 
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Arrays;
 
@@ -148,8 +147,8 @@ private void invokeMethod(SimpleCommand command, Message message, Object[] param
         Object reply = null;
         try {
             reply = method.invoke(command.getExecutor(), parameters);
-        } catch (IllegalAccessException | InvocationTargetException e) {
-            logger.warn("Cannot invoke method {}!", method.getName(), e);
+        } catch (Exception e) {
+            logger.warn("An error occurred while invoking method {}!", method.getName(), e);
         }
         if (reply != null) {
             message.reply(String.valueOf(reply));
@@ -169,10 +168,18 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         String[] args = Arrays.copyOfRange(splitMessage, 1, splitMessage.length);
         Class<?>[] parameterTypes = command.getMethod().getParameterTypes();
         final Object[] parameters = new Object[parameterTypes.length];
+        int stringCounter = 0;
         for (int i = 0; i < parameterTypes.length; i++) { // check all parameters
             Class<?> type = parameterTypes[i];
             if (type == String.class) {
-                parameters[i] = splitMessage[0]; // the first split is the command
+                if (stringCounter++ == 0) {
+                    parameters[i] = splitMessage[0]; // the first split is the command
+                } else {
+                    if (args.length + 2 > stringCounter) {
+                        // the first string parameter is the command, the other ones are the arguments
+                        parameters[i] = args[stringCounter - 2];
+                    }
+                }
             } else if (type == String[].class) {
                 parameters[i] = args;
             } else if (type == Message.class) {
@@ -189,6 +196,8 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
                 if (message.getChannelReceiver() != null) {
                     parameters[i] = message.getChannelReceiver().getServer();
                 }
+            } else if (type == Object[].class) {
+                parameters[i] = getObjectsFromString(api, args);
             } else {
                 // unknown type
                 parameters[i] = null;
@@ -197,4 +206,50 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         return parameters;
     }
 
+    /**
+     * Tries to get objects (like channel, user, integer) from the given strings.
+     *
+     * @param api The api.
+     * @param args The string array.
+     * @return An object array.
+     */
+    private Object[] getObjectsFromString(DiscordAPI api, String[] args) {
+        Object[] objects = new Object[args.length];
+        for (int i = 0; i < args.length; i++) {
+            objects[i] = getObjectFromString(api, args[i]);
+        }
+        return objects;
+    }
+
+    /**
+     * Tries to get an object (like channel, user, integer) from the given string.
+     *
+     * @param api The api.
+     * @param arg The string.
+     * @return The object.
+     */
+    private Object getObjectFromString(DiscordAPI api, String arg) {
+        try {
+            // test int
+            return Integer.valueOf(arg);
+        } catch (NumberFormatException e) {}
+        // test user
+        if (arg.matches("<@([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            User user = api.getCachedUserById(id);
+            if (user != null) {
+                return user;
+            }
+        }
+        // test channel
+        if (arg.matches("<#([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            Channel channel = api.getChannelById(id);
+            if (channel != null) {
+                return channel;
+            }
+        }
+        return arg;
+    }
+
 }
diff --git a/sdcf4j-jda/pom.xml b/sdcf4j-jda/pom.xml
index 6b2dc1e..e223c1a 100644
--- a/sdcf4j-jda/pom.xml
+++ b/sdcf4j-jda/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>sdcf4j</artifactId>
         <groupId>de.btobastian.sdcf4j</groupId>
-        <version>1.0.1</version>
+        <version>1.0.2</version>
     </parent>
     <packaging>jar</packaging>
     <modelVersion>4.0.0</modelVersion>
diff --git a/sdcf4j-jda/src/main/java/de/btobastian/sdcf4j/handler/JDAHandler.java b/sdcf4j-jda/src/main/java/de/btobastian/sdcf4j/handler/JDAHandler.java
index 610c16a..e6764ed 100644
--- a/sdcf4j-jda/src/main/java/de/btobastian/sdcf4j/handler/JDAHandler.java
+++ b/sdcf4j-jda/src/main/java/de/btobastian/sdcf4j/handler/JDAHandler.java
@@ -164,10 +164,18 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         String[] args = Arrays.copyOfRange(splitMessage, 1, splitMessage.length);
         Class<?>[] parameterTypes = command.getMethod().getParameterTypes();
         final Object[] parameters = new Object[parameterTypes.length];
+        int stringCounter = 0;
         for (int i = 0; i < parameterTypes.length; i++) { // check all parameters
             Class<?> type = parameterTypes[i];
             if (type == String.class) {
-                parameters[i] = splitMessage[0];
+                if (stringCounter++ == 0) {
+                    parameters[i] = splitMessage[0]; // the first split is the command
+                } else {
+                    if (args.length + 2 > stringCounter) {
+                        // the first string parameter is the command, the other ones are the arguments
+                        parameters[i] = args[stringCounter - 2];
+                    }
+                }
             } else if (type == String[].class) {
                 parameters[i] = args;
             } else if (type == MessageReceivedEvent.class) {
@@ -186,6 +194,8 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
                 parameters[i] = event.getGuild();
             } else if (type == Integer.class || type == int.class) {
                 parameters[i] = event.getResponseNumber();
+            } else if (type == Object[].class) {
+                parameters[i] = getObjectsFromString(event.getJDA(), args);
             } else {
                 // unknown type
                 parameters[i] = null;
@@ -194,4 +204,50 @@ private Object[] getParameters(String[] splitMessage, SimpleCommand command, Mes
         return parameters;
     }
 
+    /**
+     * Tries to get objects (like channel, user, integer) from the given strings.
+     *
+     * @param jda The jda object.
+     * @param args The string array.
+     * @return An object array.
+     */
+    private Object[] getObjectsFromString(JDA jda, String[] args) {
+        Object[] objects = new Object[args.length];
+        for (int i = 0; i < args.length; i++) {
+            objects[i] = getObjectFromString(jda, args[i]);
+        }
+        return objects;
+    }
+
+    /**
+     * Tries to get an object (like channel, user, integer) from the given string.
+     *
+     * @param jda The jda object.
+     * @param arg The string.
+     * @return The object.
+     */
+    private Object getObjectFromString(JDA jda, String arg) {
+        try {
+            // test int
+            return Integer.valueOf(arg);
+        } catch (NumberFormatException e) {}
+        // test user
+        if (arg.matches("<@([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            User user = jda.getUserById(id);
+            if (user != null) {
+                return user;
+            }
+        }
+        // test channel
+        if (arg.matches("<#([0-9]*)>")) {
+            String id = arg.substring(2, arg.length() - 1);
+            Channel channel = jda.getTextChannelById(id);
+            if (channel != null) {
+                return channel;
+            }
+        }
+        return arg;
+    }
+
 }