diff --git a/src/main/java/com/corundumstudio/socketio/SocketIOEncoder.java b/src/main/java/com/corundumstudio/socketio/SocketIOEncoder.java
index 5797f59..f83e9fa 100644
--- a/src/main/java/com/corundumstudio/socketio/SocketIOEncoder.java
+++ b/src/main/java/com/corundumstudio/socketio/SocketIOEncoder.java
@@ -199,7 +199,7 @@ public class SocketIOEncoder extends SimpleChannelDownstreamHandler implements M
         if (channel.isOpen()) {
             channel.write(res);
         } else {
-            log.trace("Channel was closed, for sessionId: {}", webSocketPacketMessage.getSessionId());
+            log.debug("Channel was closed, for sessionId: {}", webSocketPacketMessage.getSessionId());
         }
     }
 
diff --git a/src/main/java/com/corundumstudio/socketio/annotation/OnConnectScanner.java b/src/main/java/com/corundumstudio/socketio/annotation/OnConnectScanner.java
index 8508309..f1c84c7 100644
--- a/src/main/java/com/corundumstudio/socketio/annotation/OnConnectScanner.java
+++ b/src/main/java/com/corundumstudio/socketio/annotation/OnConnectScanner.java
@@ -18,17 +18,13 @@ package com.corundumstudio.socketio.annotation;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Method;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.corundumstudio.socketio.SocketIOClient;
+import com.corundumstudio.socketio.handler.SocketIOException;
 import com.corundumstudio.socketio.listener.ConnectListener;
 import com.corundumstudio.socketio.namespace.Namespace;
 
 public class OnConnectScanner implements AnnotationScanner  {
 
-    private final Logger log = LoggerFactory.getLogger(getClass());
-
     public Class<? extends Annotation> getScanAnnotation() {
         return OnConnect.class;
     }
@@ -40,7 +36,7 @@ public class OnConnectScanner implements AnnotationScanner  {
                 try {
                     method.invoke(object, client);
                 } catch (Exception e) {
-                    log.error("Can't invoke OnConnect listener on: " + clazz.getName() + ", method: " + method.getName(), e);
+                    throw new SocketIOException(e);
                 }
             }
         });
diff --git a/src/main/java/com/corundumstudio/socketio/annotation/OnDisconnectScanner.java b/src/main/java/com/corundumstudio/socketio/annotation/OnDisconnectScanner.java
index 2223689..5aef37c 100644
--- a/src/main/java/com/corundumstudio/socketio/annotation/OnDisconnectScanner.java
+++ b/src/main/java/com/corundumstudio/socketio/annotation/OnDisconnectScanner.java
@@ -22,6 +22,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.corundumstudio.socketio.SocketIOClient;
+import com.corundumstudio.socketio.handler.SocketIOException;
 import com.corundumstudio.socketio.listener.DisconnectListener;
 import com.corundumstudio.socketio.namespace.Namespace;
 
@@ -42,7 +43,7 @@ public class OnDisconnectScanner implements AnnotationScanner {
                 try {
                     method.invoke(object, client);
                 } catch (Exception e) {
-                    log.error("Can't invoke OnDisconnect listener on: " + clazz.getName() + ", method: " + method.getName(), e);
+                    throw new SocketIOException(e);
                 }
             }
         });
diff --git a/src/main/java/com/corundumstudio/socketio/annotation/OnEventScanner.java b/src/main/java/com/corundumstudio/socketio/annotation/OnEventScanner.java
index ab4381f..e765dda 100644
--- a/src/main/java/com/corundumstudio/socketio/annotation/OnEventScanner.java
+++ b/src/main/java/com/corundumstudio/socketio/annotation/OnEventScanner.java
@@ -18,18 +18,14 @@ package com.corundumstudio.socketio.annotation;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Method;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.corundumstudio.socketio.AckRequest;
 import com.corundumstudio.socketio.SocketIOClient;
+import com.corundumstudio.socketio.handler.SocketIOException;
 import com.corundumstudio.socketio.listener.DataListener;
 import com.corundumstudio.socketio.namespace.Namespace;
 
 public class OnEventScanner implements AnnotationScanner {
 
-    private final Logger log = LoggerFactory.getLogger(getClass());
-
     @Override
     public Class<? extends Annotation> getScanAnnotation() {
         return OnEvent.class;
@@ -65,8 +61,7 @@ public class OnEventScanner implements AnnotationScanner {
                     }
                     method.invoke(object, args);
                 } catch (Exception e) {
-                    log.error("Can't invoke OnEvent listener on: " + clazz.getName() + ", method: "
-                            + method.getName(), e);
+                    throw new SocketIOException(e);
                 }
             }
         });
diff --git a/src/main/java/com/corundumstudio/socketio/annotation/OnJsonObjectScanner.java b/src/main/java/com/corundumstudio/socketio/annotation/OnJsonObjectScanner.java
index 659e35f..88d0a3d 100644
--- a/src/main/java/com/corundumstudio/socketio/annotation/OnJsonObjectScanner.java
+++ b/src/main/java/com/corundumstudio/socketio/annotation/OnJsonObjectScanner.java
@@ -18,18 +18,14 @@ package com.corundumstudio.socketio.annotation;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Method;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.corundumstudio.socketio.AckRequest;
 import com.corundumstudio.socketio.SocketIOClient;
+import com.corundumstudio.socketio.handler.SocketIOException;
 import com.corundumstudio.socketio.listener.DataListener;
 import com.corundumstudio.socketio.namespace.Namespace;
 
 public class OnJsonObjectScanner implements AnnotationScanner {
 
-    private final Logger log = LoggerFactory.getLogger(getClass());
-
     @Override
     public Class<? extends Annotation> getScanAnnotation() {
         return OnJsonObject.class;
@@ -58,8 +54,7 @@ public class OnJsonObjectScanner implements AnnotationScanner {
                     }
                     method.invoke(object, args);
                 } catch (Exception e) {
-                    log.error("Can't invoke OnJsonObject listener on: " + clazz.getName() + ", method: "
-                            + method.getName(), e);
+                    throw new SocketIOException(e);
                 }
             }
         });
diff --git a/src/main/java/com/corundumstudio/socketio/annotation/OnMessageScanner.java b/src/main/java/com/corundumstudio/socketio/annotation/OnMessageScanner.java
index 941b206..52be25c 100644
--- a/src/main/java/com/corundumstudio/socketio/annotation/OnMessageScanner.java
+++ b/src/main/java/com/corundumstudio/socketio/annotation/OnMessageScanner.java
@@ -18,18 +18,14 @@ package com.corundumstudio.socketio.annotation;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Method;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.corundumstudio.socketio.AckRequest;
 import com.corundumstudio.socketio.SocketIOClient;
+import com.corundumstudio.socketio.handler.SocketIOException;
 import com.corundumstudio.socketio.listener.DataListener;
 import com.corundumstudio.socketio.namespace.Namespace;
 
 public class OnMessageScanner implements AnnotationScanner {
 
-    private final Logger log = LoggerFactory.getLogger(getClass());
-
     @Override
     public Class<? extends Annotation> getScanAnnotation() {
         return OnMessage.class;
@@ -56,8 +52,7 @@ public class OnMessageScanner implements AnnotationScanner {
                     }
                     method.invoke(object, args);
                 } catch (Exception e) {
-                    log.error("Can't invoke OnMessage listener on: " + clazz.getName() + ", method: "
-                            + method.getName(), e);
+                    throw new SocketIOException(e);
                 }
             }
         });
diff --git a/src/main/java/com/corundumstudio/socketio/handler/PacketHandler.java b/src/main/java/com/corundumstudio/socketio/handler/PacketHandler.java
index a2edafb..53b7353 100644
--- a/src/main/java/com/corundumstudio/socketio/handler/PacketHandler.java
+++ b/src/main/java/com/corundumstudio/socketio/handler/PacketHandler.java
@@ -63,11 +63,16 @@ public class PacketHandler extends SimpleChannelUpstreamHandler {
                 log.trace("In message: {} sessionId: {}", new Object[] {content.toString(CharsetUtil.UTF_8), client.getSessionId()});
             }
             while (content.readable()) {
-                Packet packet = decoder.decodePackets(content, client.getSessionId());
-                Namespace ns = namespacesHub.get(packet.getEndpoint());
+                try {
+                    Packet packet = decoder.decodePackets(content, client.getSessionId());
+                    Namespace ns = namespacesHub.get(packet.getEndpoint());
 
-                NamespaceClient nClient = (NamespaceClient) client.getChildClient(ns);
-                packetListener.onPacket(packet, nClient);
+                    NamespaceClient nClient = (NamespaceClient) client.getChildClient(ns);
+                    packetListener.onPacket(packet, nClient);
+                } catch (Exception ex) {
+                    String c = content.toString(CharsetUtil.UTF_8);
+                    log.error("Error during data processing. Client sessionId: " + client.getSessionId() + ", data: " + c, ex);
+                }
             }
         } else {
             ctx.sendUpstream(e);
diff --git a/src/main/java/com/corundumstudio/socketio/handler/SocketIOException.java b/src/main/java/com/corundumstudio/socketio/handler/SocketIOException.java
new file mode 100644
index 0000000..b5638e7
--- /dev/null
+++ b/src/main/java/com/corundumstudio/socketio/handler/SocketIOException.java
@@ -0,0 +1,34 @@
+/**
+ * Copyright 2012 Nikita Koksharov
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.corundumstudio.socketio.handler;
+
+public class SocketIOException extends RuntimeException {
+
+    private static final long serialVersionUID = -9218908839842557188L;
+
+    public SocketIOException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public SocketIOException(String message) {
+        super(message);
+    }
+
+    public SocketIOException(Throwable cause) {
+        super(cause);
+    }
+
+}