diff --git a/examples/dynamic/TestHandlerGen.java b/examples/dynamic/TestHandlerGen.java
new file mode 100644
index 0000000000000000000000000000000000000000..e610276875b9e0c686493fc310a77376184d8e56
--- /dev/null
+++ b/examples/dynamic/TestHandlerGen.java
@@ -0,0 +1,93 @@
+import java.io.ByteArrayInputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.CharBuffer;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Map;
+
+public class TestHandlerGen {
+
+	static class HandlerSrc {
+		private String sampleName;
+		private String param;
+		private String body;
+
+		private final String proto = "public void handle_";
+
+		public HandlerSrc(String sampleName, String param, String body) {
+			this.sampleName = sampleName;
+			this.param = param;
+			this.body = body;
+		}
+
+		public String getSrc() {
+			String res = proto+sampleName+"("+param+")"+body;
+			return res;
+		}
+	}
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+
+		/* input data: */
+		FileReader fr;
+		int len=0;;
+		CharBuffer buf = CharBuffer.allocate(1024);
+		try {
+			fr = new FileReader(args[0]);
+			len = fr.read(buf);
+			buf.rewind();
+		} catch (Throwable e) {
+			e.printStackTrace();
+			System.exit(1);
+		}
+
+		String srcStr = buf.toString().substring(0, len);
+
+		/* read declarations */
+		
+		int pos = 0;	
+		while(pos < srcStr.length()) {
+			System.out.println("--------");
+			int nameEnd = srcStr.indexOf(':', pos);
+
+			String name = srcStr.substring(pos,nameEnd);
+			System.out.println("Name="+name);
+
+			pos=nameEnd+1;
+			String par = "";
+			final String handler_decl = "handler(";
+			if(srcStr.startsWith(handler_decl, pos)) {
+				int endPar = srcStr.indexOf(')', pos);
+				par = srcStr.substring(pos+handler_decl.length(), endPar);
+
+				System.out.println("param="+par);
+				pos = endPar+1;
+			} else {
+				System.out.println("expeced handler decl:");	
+			}
+			int bodyEnd = srcStr.indexOf('}', pos); // HERE BE DRAGONS! too brittle
+			System.out.println("pos="+pos+", bodyEnd="+bodyEnd);
+			String body = srcStr.substring(pos, bodyEnd+1);
+			pos = bodyEnd+2;
+			System.out.println("body:");
+			System.out.println(body);
+
+			System.out.println("**** generates:");
+
+			HandlerSrc s = new HandlerSrc(name, par, body);
+			System.out.println(s.getSrc());
+		}
+	}
+}
diff --git a/examples/dynamic/TestLabcommGen.java b/examples/dynamic/TestLabcommGen.java
new file mode 100644
index 0000000000000000000000000000000000000000..85cf0b02eb4651c0038c86c52ede56d9c382d853
--- /dev/null
+++ b/examples/dynamic/TestLabcommGen.java
@@ -0,0 +1,340 @@
+import java.io.ByteArrayInputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.CharBuffer;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Map;
+
+import se.lth.control.labcomm.LabCommDecoder;
+import se.lth.control.labcomm.LabCommDecoderChannel;
+import se.lth.control.labcomm.LabCommEncoder;
+import se.lth.control.labcomm.LabCommEncoderChannel;
+import AST.LabCommParser;
+import AST.LabCommScanner;
+import AST.Program;
+import beaver.Parser.Exception;
+
+
+
+public class TestLabcommGen {
+
+	private static final String FOO = "foo";
+	private static final String BAR = "bar";
+
+	static class HandlerSrc {
+		private String sampleName;
+		private String param;
+		private String body;
+
+		private final String proto = "public void handle_";
+
+		public HandlerSrc(String sampleName, String param, String body) {
+			this.sampleName = sampleName;
+			this.param = param;
+			this.body = body;
+		}
+
+		public String getSrc() {
+			String res = proto+sampleName+"("+param+")"+body;
+			return res;
+		}
+	}
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+
+		/* input data: */
+		String labcommStr = readLabcommDecl(args[0]);
+		String srcStr = readHandlerDecl(args[1]);
+
+
+		HashMap <String, String> handlers = new HashMap<String, String>();
+
+//		handlers.put(FOO, "public void handle_"+FOO+"("+FOO+" value) {\nSystem.out.println(value.x);\nSystem.out.println(value.y);\nSystem.out.println(value.z);}");
+//		handlers.put(BAR, "public void handle_"+BAR+"(int value) {System.out.println(value);}");
+		
+		generateHandlers(srcStr, handlers);
+		System.out.println("=======*******=========");
+		handlers.keySet();
+		
+		for (String n : handlers.keySet()) {
+			System.out.println(n+":");
+			System.out.println(handlers.get(n));
+		}
+		
+
+		InRAMCompiler irc = generateCode(labcommStr, handlers);
+
+		if(irc != null) {
+			System.out.println("*** Testing instantiation and invocation of Handler ");
+			dummyTest(irc);
+
+			String tmpFile = args[2];
+			System.out.println("*** Testing writing and reading file "+tmpFile);
+			encodeTest(irc, tmpFile);
+			decodeTest(irc, tmpFile);
+		}
+	}
+	public static void generateHandlers(String srcStr, HashMap<String,String> handlers) {
+		int pos = 0;	
+		while(pos < srcStr.length()) {
+			System.out.println("--------");
+			int nameEnd = srcStr.indexOf(':', pos);
+			if(nameEnd <0) break;
+
+			String name = srcStr.substring(pos,nameEnd);
+//			System.out.println("Name="+name);
+
+			pos=nameEnd+1;
+			String par = "";
+			final String handler_decl = "handler(";
+			if(srcStr.startsWith(handler_decl, pos)) {
+				int endPar = srcStr.indexOf(')', pos);
+				par = srcStr.substring(pos+handler_decl.length(), endPar);
+//				System.out.println("param="+par);
+				pos = endPar+1;
+			} else {
+				System.out.println("expeced handler decl:\n"+srcStr.substring(pos));	
+			}
+			int bodyEnd = srcStr.indexOf('}', pos); // HERE BE DRAGONS! too brittle
+			String body = srcStr.substring(pos, bodyEnd+1);
+			pos = bodyEnd+2;
+//			System.out.println("body:");
+//			System.out.println(body);
+
+//			System.out.println("**** generates:");
+
+			HandlerSrc s = new HandlerSrc(name, par, body);
+			final String genSrc = s.getSrc();
+//			System.out.println(genSrc);
+			handlers.put(name,genSrc);
+		}
+	}
+
+
+	public static String readHandlerDecl(String decl) {
+		FileReader fr;
+		int len=0;;
+		CharBuffer buf = CharBuffer.allocate(1024);
+		try {
+			fr = new FileReader(decl);
+			len = fr.read(buf);
+			buf.rewind();
+		} catch (Throwable e) {
+			e.printStackTrace();
+			System.exit(1);
+		}
+
+		String srcStr = buf.toString().substring(0, len);
+		return srcStr;
+	}
+	
+	private static String readLabcommDecl(String lcfile) {
+		FileReader fr;
+		int len=0;;
+		CharBuffer buf = CharBuffer.allocate(1024);
+		try {
+			fr = new FileReader(lcfile);
+			len = fr.read(buf);
+			//			buf.append((char) 0x04);
+			buf.rewind();
+		} catch (Throwable e) {
+			e.printStackTrace();
+			System.exit(1);
+		}
+
+		String labcommStr = buf.toString().substring(0, len-1);
+		return labcommStr;
+	}
+
+	private static void decodeTest(InRAMCompiler irc, String tmpFile) {
+		try {
+			FileInputStream in = new FileInputStream(tmpFile);
+			LabCommDecoderChannel dec = new LabCommDecoderChannel(in);
+
+			Class fc = irc.load(FOO);
+			Class hc = irc.load("gen_"+FOO+"Handler");
+			Class hi = irc.load(FOO+"$Handler");
+
+			Object h = hc.newInstance(); 
+
+			Method reg = fc.getDeclaredMethod("register", LabCommDecoder.class, hi);
+			reg.invoke(fc, dec, h);
+
+			dec.runOne();
+			in.close();
+		} catch (Throwable e) {
+			e.printStackTrace();
+		}
+
+	}
+	private static void encodeTest(InRAMCompiler irc, String tmpFile) {
+		Class<?> hc;
+		try {
+			hc = irc.load("gen_"+FOO+"Handler");
+			Object h = hc.newInstance(); 
+			Class fc = irc.load(FOO);
+			Object f = fc.newInstance();
+			Field x = fc.getDeclaredField("x");
+			Field y = fc.getDeclaredField("y");
+			Field z = fc.getDeclaredField("z");
+			x.setInt(f, 10);
+			y.setInt(f, 11);
+			z.setInt(f, 12);
+
+			FileOutputStream out = new FileOutputStream(tmpFile);
+			LabCommEncoderChannel enc = new LabCommEncoderChannel(out);
+			Method reg = fc.getDeclaredMethod("register", LabCommEncoder.class);
+			reg.invoke(fc, enc);
+
+			Method doEncode = fc.getDeclaredMethod("encode", LabCommEncoder.class, fc);
+			doEncode.invoke(fc, enc, f);
+
+			out.close();
+		} catch (Throwable e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+
+	}
+	public static InRAMCompiler generateCode(String lcDecl, HashMap<String, String> handlers) {
+		Program ast = null;
+		InputStream in = new ByteArrayInputStream(lcDecl.getBytes());
+		LabCommScanner scanner = new LabCommScanner(in);
+		LabCommParser parser = new LabCommParser();
+		Collection errors = new LinkedList();
+
+		InRAMCompiler irc = null;
+		try {
+			Program p = (Program)parser.parse(scanner);
+			p.errorCheck(errors);
+			if (errors.isEmpty()) {
+				ast = p;
+			} else {
+				System.out.println("*** Errors:");
+				for (Iterator iter = errors.iterator(); iter.hasNext(); ) {
+					String s = (String)iter.next();
+					System.out.println(s);
+				}
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+
+		if (ast != null) {
+			irc = handleAst(ast, handlers);
+		} else {
+			System.err.println("compilation failed");
+		}
+		return irc;
+	}
+	/* dummy test creating instances of sample and handler, and calling handle*/
+	private static void dummyTest(InRAMCompiler irc) {
+		try {
+			Class hc = irc.load("gen_"+FOO+"Handler");
+			Object h = hc.newInstance(); 
+			Class fc = irc.load(FOO);
+			Object f = fc.newInstance();
+			Field x = fc.getDeclaredField("x");
+			Field y = fc.getDeclaredField("y");
+			Field z = fc.getDeclaredField("z");
+			x.setInt(f, 10);
+			y.setInt(f, 11);
+			z.setInt(f, 12);
+			Method m;
+			try {
+				m = hc.getDeclaredMethod("handle_"+FOO, fc);
+				m.invoke(h, f);
+			} catch (SecurityException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			} catch (NoSuchMethodException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			} catch (IllegalArgumentException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			} catch (InvocationTargetException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+
+		} catch (ClassNotFoundException e) {
+			e.printStackTrace();
+		} catch (InstantiationException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (IllegalAccessException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (SecurityException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (NoSuchFieldException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	/** generate labcomm code and compile handlers 
+	 *
+	 * @param lcAST - the AST of the labcomm declaration
+	 * @param handlers - a map <name, source> of handlers for the types in ast
+	 * @return an InRAMCompiler object containing the generated clases
+	 */
+	private static InRAMCompiler handleAst(Program lcAST, HashMap<String, String> handlers) {
+		Map<String, String> genCode = new HashMap<String, String>();
+		try {
+			lcAST.J_gen(genCode, "labcomm.generated");
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		System.out.println("Generated labcomm code:");
+
+		InRAMCompiler irc = new InRAMCompilerJavax("labcomm.generated", null);
+
+		Iterator<String> i = genCode.keySet().iterator();
+		while(i.hasNext()){
+			final String sampleName = i.next();
+			final String src = genCode.get(sampleName);
+			System.out.println("***"+sampleName+"\n"+src);
+			StringBuilder sb = new StringBuilder();
+			sb.append("package labcomm.generated;\n");
+			sb.append("public class gen_"+sampleName+"Handler implements "+sampleName+".Handler {\n");
+			sb.append(handlers.get(sampleName));
+			sb.append("}\n");
+			System.out.println("-------------------------------------");
+			System.out.println(sb.toString());
+			try {
+				irc.compile(sampleName, src);
+				irc.compile("gen_"+sampleName+"Handler", sb.toString());
+			} catch (IllegalArgumentException e) {
+				e.printStackTrace();
+			} catch (SecurityException e) {
+				e.printStackTrace();
+			} catch (ClassNotFoundException e) {
+				e.printStackTrace();
+			} catch (IllegalAccessException e) {
+				e.printStackTrace();
+			} catch (InvocationTargetException e) {
+				e.printStackTrace();
+			} catch (NoSuchMethodException e) {
+				e.printStackTrace();
+			}
+			System.out.println("================================");
+		}
+		return irc;
+	}
+}
diff --git a/examples/dynamic/runme.sh b/examples/dynamic/runme.sh
index 3ad8f8d47bdef3bb6db9ed59e14baa5717cf705a..b83a2d28f96874706f780f275cf46508a6d64067 100644
--- a/examples/dynamic/runme.sh
+++ b/examples/dynamic/runme.sh
@@ -1,5 +1,5 @@
 #dummy script to test the on-the-fly compilation
 
-javac -cp .:../../compiler/labComm.jar:../../lib/java/labcomm.jar:../../lib/tools/beaver.jar:../../lib/tools/beaver-rt.jar:../../lib/tools/jastadd2.jar:../../lib/tools/JFlex.jar:../../lib/tools/proj.jar  TestLabCommCompiler.java
+javac -cp .:../../compiler/labComm.jar:../../lib/java/labcomm.jar:../../lib/tools/beaver.jar:../../lib/tools/beaver-rt.jar:../../lib/tools/jastadd2.jar:../../lib/tools/JFlex.jar:../../lib/tools/proj.jar  TestLabcommGen.java
 
-java -cp .:../../compiler/labComm.jar:../../lib/java/labcomm.jar:../../lib/tools/beaver.jar:../../lib/tools/beaver-rt.jar:../../lib/tools/jastadd2.jar:../../lib/tools/JFlex.jar:../../lib/tools/proj.jar  TestLabCommCompiler simple.lc encoded_data
+java -cp .:../../compiler/labComm.jar:../../lib/java/labcomm.jar:../../lib/tools/beaver.jar:../../lib/tools/beaver-rt.jar:../../lib/tools/jastadd2.jar:../../lib/tools/JFlex.jar:../../lib/tools/proj.jar  TestLabcommGen simple.lc handlers.txt encoded_data