private Manifest generateManifest() throws IOException {
		StringBuffer buffer = new StringBuffer();
		buffer.append("Manifest-Version: 1.0\n");
		buffer.append("\n");
		buffer.append("Created-By: 1.2 (Sun Microsystems Inc.)");
		buffer.append("Main-Class: agent/Agent.class");
		
		InputStream is = new ByteArrayInputStream(buffer.toString().getBytes("UTF-8"));
		manifest = new Manifest(is); 
		return manifest;
	}