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diff --git a/VS-Sim-Sources/sources/protocols/VSAbstractProtocol.java b/VS-Sim-Sources/sources/protocols/VSAbstractProtocol.java
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+/*
+ * Copyright (c) 2008 Paul C. Buetow, vs@dev.buetow.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * All icons of the icons/ folder are 	under a Creative Commons
+ * Attribution-Noncommercial-Share Alike License a CC-by-nc-sa.
+ *
+ * The icon's homepage is http://code.google.com/p/ultimate-gnome/
+ */
+
+package protocols;
+
+import java.io.*;
+import java.util.ArrayList;
+
+import core.*;
+import events.*;
+import events.internal.*;
+import serialize.*;
+import simulator.VSSimulatorVisualization;
+//import utils.*;
+
+/**
+ * The class VSAbstractProtocol, this class defined the basic framework of a
+ * protocol.
+ *
+ * @author Paul C. Buetow
+ */
+abstract public class VSAbstractProtocol extends VSAbstractEvent {
+    /** The serial version uid */
+    private static final long serialVersionUID = 1L;
+
+    /** The protocol has an onServerStart method */
+    protected static final boolean HAS_ON_SERVER_START = true;
+
+    /** The protocol has an onClientStart method */
+    protected static final boolean HAS_ON_CLIENT_START = false;
+
+    /** True, if onServerStart is used, false if onClientStart is used */
+    private boolean hasOnServerStart;
+
+    /** The protocol object is a server. */
+    private boolean isServer;
+
+    /** The protocol object is a client. */
+    private boolean isClient;
+
+    /** The protocol object server is initialized. */
+    private boolean isServerInitialized;
+
+    /** The protocol object client is initialized. */
+    private boolean isClientInitialized;
+
+    /** The current protocol object's context is a server. */
+    private boolean currentContextIsServer;
+
+    /** The protocol's server schedules */
+    private ArrayList<VSTask> serverSchedules = new ArrayList<VSTask>();
+
+    /** The protocol's client schedules */
+    private ArrayList<VSTask> clientSchedules = new ArrayList<VSTask>();
+
+    /**
+     * A simple constructor.
+     *
+     * @param hasOnServerStart true, if the protocol uses an onServerStart
+     *	method. false, if the protocol uses an onClientStart method instead.
+     */
+    public VSAbstractProtocol(boolean hasOnServerStart) {
+        this.hasOnServerStart = hasOnServerStart;
+    }
+
+    /**
+     * Sends a message.
+     *
+     * @param message the message to send
+     */
+    public void sendMessage(VSMessage message) {
+        if (process == null)
+            return;
+
+        process.increaseLamportTime();
+        process.increaseVectorTime();
+
+        VSMessageStub stub = new VSMessageStub(message);
+        VSInternalProcess internalProcess = (VSInternalProcess) process;
+
+        if (currentContextIsServer)
+            stub.init(internalProcess, getClassname(),
+                      VSMessage.IS_SERVER_MESSAGE);
+        else
+            stub.init(internalProcess, getClassname(),
+                      VSMessage.IS_CLIENT_MESSAGE);
+
+        internalProcess.sendMessage(message);
+    }
+
+    /**
+     * Checks if it's the incorrect protocol
+     *
+     * @param message the message to check against
+     *
+     * @return true, if is incorrect protocol
+     */
+    private final boolean isIncorrectProtocol(VSMessage message) {
+        return !message.getProtocolClassname().equals(getClassname());
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractEvent#onStart()
+     */
+    public final void onStart() {
+        if (hasOnServerStart) {
+            if (isServer) {
+                currentContextIsServer(true);
+                if (!isServerInitialized)
+                    onInit();
+                onServerStart();
+            }
+        } else {
+            if (isClient) {
+                currentContextIsServer(false);
+                if (!isClientInitialized)
+                    onInit();
+                onClientStart();
+            }
+        }
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractEvent#onInit()
+     */
+    public final void onInit() {
+        if (isClient) {
+            currentContextIsServer(false);
+            onClientInit();
+            isClientInitialized = true;
+        }
+
+        if (isServer) {
+            currentContextIsServer(true);
+            onServerInit();
+            isServerInitialized = true;
+        }
+    }
+
+    /**
+     * Runs a client schedule
+     */
+    public final void onClientScheduleStart() {
+        if (isClient) {
+            currentContextIsServer(false);
+            onClientSchedule();
+        }
+    }
+
+    /**
+     * Runs a server schedule
+     */
+    public final void onServerScheduleStart() {
+        if (isServer) {
+            currentContextIsServer(true);
+            onServerSchedule();
+        }
+    }
+
+    /**
+     * On message recv.
+     *
+     * @param message the message
+     */
+    public final void onMessageRecvStart(VSMessage message) {
+        if (isIncorrectProtocol(message))
+            return;
+
+        if (isServer) {
+            currentContextIsServer(true);
+            if (!isServerInitialized)
+                onInit();
+            onServerRecv(message);
+        }
+
+        if (isClient) {
+            currentContextIsServer(false);
+            if (!isClientInitialized)
+                onInit();
+            onClientRecv(message);
+        }
+    }
+
+    /**
+     * Check's if its a relevant message.
+     *
+     * @param message the message to check
+     *
+     * @return true, if it's a relevant meessage. false if the protocol
+     *	is wrong or if the server recv a server message/the client recv a
+     * 	client message. Clients should only recv server messages and servers
+     *	should only recv client messages.
+     */
+    public final boolean isRelevantMessage(VSMessage message) {
+        if (isIncorrectProtocol(message))
+            return false;
+
+        if (message.isServerMessage()) {
+            if (!isClient)
+                return false;
+        } else {
+            if (!isServer)
+                return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Sets if the current context is server.
+     *
+     * @param currentContextIsServer the context.
+     */
+    public final void currentContextIsServer(boolean currentContextIsServer) {
+        this.currentContextIsServer = currentContextIsServer;
+    }
+
+    /**
+     * Checks how the protocol will start
+     *
+     * @return true, if this protocol uses onServerStart instead of
+     *	onClientStart
+     */
+    public final boolean hasOnServerStart() {
+        return hasOnServerStart;
+    }
+
+    /**
+     * Sets if is server.
+     *
+     * @param isServer the is server
+     */
+    public final void isServer(boolean isServer) {
+        this.isServer = isServer;
+    }
+
+    /**
+     * Checks if is server.
+     *
+     * @return true, if the protocol has activated the server part
+     */
+    public final boolean isServer() {
+        return isServer;
+    }
+
+    /**
+     * Sets if is client.
+     *
+     * @param isClient the is client
+     */
+    public final void isClient(boolean isClient) {
+        this.isClient = isClient;
+    }
+
+    /**
+     * Checks if is client.
+     *
+     * @return true, if the protocol has activated the client part
+     */
+    public final boolean isClient() {
+        return isClient;
+    }
+
+    /**
+     * Resets the protocol.
+     */
+    public void reset() {
+        currentContextIsServer(true);
+        isServer = false;
+        onServerReset();
+        serverSchedules.clear();
+
+        currentContextIsServer(false);
+        isClient = false;
+        onClientReset();
+        clientSchedules.clear();
+    }
+
+    /**
+     * Reschedules the protocol for a new time and runs onClientSchedule or
+     *	onServerSchedule
+     *
+     * @param time The process' local time to run the schedule at.
+     */
+    public final void scheduleAt(long time) {
+        VSInternalProcess internalProcess = (VSInternalProcess) process;
+        VSAbstractEvent scheduleEvent =
+            new VSProtocolScheduleEvent(this, currentContextIsServer);
+        VSTask scheduleTask =
+            new VSTask(time, internalProcess, scheduleEvent, VSTask.LOCAL);
+
+        if (currentContextIsServer)
+            serverSchedules.add(scheduleTask);
+        else
+            clientSchedules.add(scheduleTask);
+
+        VSSimulatorVisualization canvas = internalProcess.getSimulatorCanvas();
+        canvas.getTaskManager().addTask(scheduleTask);
+    }
+
+    /**
+     * Removes all schedules of the protocol (server or client)
+     */
+    public final void removeSchedules() {
+        VSInternalProcess internalProcess = (VSInternalProcess) process;
+
+        if (currentContextIsServer) {
+            internalProcess.getSimulatorCanvas().
+            getTaskManager().removeAllTasks(serverSchedules);
+            serverSchedules.clear();
+
+        } else {
+            internalProcess.getSimulatorCanvas().
+            getTaskManager().removeAllTasks(clientSchedules);
+            clientSchedules.clear();
+        }
+    }
+
+    /**
+     * On client init.
+     */
+    abstract public void onClientInit();
+
+    /**
+     * On client start.
+     */
+    public void onClientStart() { };
+
+    /**
+     * On client reset.
+     */
+    abstract public void onClientReset();
+
+    /**
+     * On client schedule.
+     */
+    abstract public void onClientSchedule();
+
+    /**
+     * On client recv.
+     *
+     * @param message the message
+     */
+    abstract public void onClientRecv(VSMessage message);
+
+    /**
+     * On server init.
+     */
+    abstract public void onServerInit();
+
+    /**
+     * On server start.
+     */
+    public void onServerStart() { };
+
+    /**
+     * On server reset.
+     */
+    abstract public void onServerReset();
+
+    /**
+     * On server recv.
+     *
+     * @param message the message
+     */
+    abstract public void onServerRecv(VSMessage message);
+
+    /**
+     * On server schedule.
+     */
+    abstract public void onServerSchedule();
+
+    /**
+     * Gets the num processes.
+     *
+     * @return the num processes
+     */
+    public final int getNumProcesses() {
+        if (process == null)
+            return 0;
+
+        VSInternalProcess internalProcess = (VSInternalProcess) process;
+        return internalProcess.getSimulatorCanvas().getNumProcesses();
+    }
+
+    /* (non-Javadoc)
+     * @see prefs.VSPrefs#toString()
+     */
+    public String toString() {
+        if (process == null)
+            return "";
+
+        StringBuffer buffer = new StringBuffer();
+
+        buffer.append(prefs.getString("lang.protocol"));
+        buffer.append(": ");
+        buffer.append(getShortname());
+        buffer.append(" ");
+
+        if (currentContextIsServer)
+            buffer.append(prefs.getString("lang.server"));
+        else
+            buffer.append(prefs.getString("lang.client"));
+
+        return buffer.toString();
+    }
+
+    /* (non-Javadoc)
+     * @see serialize.VSSerializable#serialize(serialize.VSSerialize,
+     *	java.io.ObjectOutputStream)
+     */
+    public synchronized void serialize(VSSerialize serialize,
+                                       ObjectOutputStream objectOutputStream)
+    throws IOException {
+        super.serialize(serialize, objectOutputStream);
+
+        /** For later backwards compatibility, to add more stuff */
+        objectOutputStream.writeObject(new Boolean(false));
+
+        objectOutputStream.writeObject(new Boolean(hasOnServerStart));
+
+        /** For later backwards compatibility, to add more stuff */
+        objectOutputStream.writeObject(new Boolean(false));
+    }
+
+    /* (non-Javadoc)
+     * @see serialize.VSSerializable#deserialize(serialize.VSSerialize,
+     *	java.io.ObjectInputStream)
+     */
+    @SuppressWarnings("unchecked")
+    public synchronized void deserialize(VSSerialize serialize,
+                                         ObjectInputStream objectInputStream)
+    throws IOException, ClassNotFoundException {
+        super.deserialize(serialize, objectInputStream);
+
+        if (VSSerialize.DEBUG)
+            System.out.println("Deserializing: VSAbstractProtocol");
+
+        /** For later backwards compatibility, to add more stuff */
+        objectInputStream.readObject();
+
+        this.hasOnServerStart = ((Boolean)
+                                 objectInputStream.readObject()).booleanValue();
+
+        /** For later backwards compatibility, to add more stuff */
+        objectInputStream.readObject();
+    }
+}