diff --git a/x4o-driver/src/main/java/org/x4o/xml/X4ODriverManager.java b/x4o-driver/src/main/java/org/x4o/xml/X4ODriverManager.java
index 2f7bda0..3eb96cc 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/X4ODriverManager.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/X4ODriverManager.java
@@ -51,6 +51,12 @@ import org.xml.sax.XMLReader;
 import org.xml.sax.ext.DefaultHandler2;
 import org.xml.sax.helpers.XMLReaderFactory;
 
+/**
+ * X4ODriverManager controls all the x4o driver and languages loaded in the classpath.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public final class X4ODriverManager {
 
 	public final static String X4O_DRIVERS_RESOURCE = "META-INF/x4o-drivers.xml";
diff --git a/x4o-driver/src/main/java/org/x4o/xml/eld/lang/ElementRefectionBindingHandler.java b/x4o-driver/src/main/java/org/x4o/xml/eld/lang/ElementRefectionBindingHandler.java
index 9ae76bd..b8ed748 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/eld/lang/ElementRefectionBindingHandler.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/eld/lang/ElementRefectionBindingHandler.java
@@ -23,7 +23,6 @@
 
 package	org.x4o.xml.eld.lang;
 
-import java.lang.reflect.Array;
 import java.lang.reflect.Method;
 import java.util.Collection;
 import java.util.List;
@@ -44,6 +43,7 @@ public class ElementRefectionBindingHandler extends AbstractElementBindingHandle
 	private Class<?> childClass = null;
 	private String addMethod = null;
 	private String getMethod = null;
+	private String skipChilderenClassRegex = null;
 	
 	/**
 	 * @see org.x4o.xml.element.ElementBindingHandler#getBindParentClass()
@@ -105,38 +105,54 @@ public class ElementRefectionBindingHandler extends AbstractElementBindingHandle
 			if (getMethod.equalsIgnoreCase(m.getName())==false) {
 				continue;
 			}
+			Object result;
 			try {
-				Object result = m.invoke(parentObject, new Object[]{});
-				if (result==null) {
-					break;
-				}
-				if (result instanceof List) {
-					for (Object o:(List)result) {
-						createChild(parentElement, o);
-					}
-					return;
-				} else if (result instanceof Collection) {
-					for (Object o:(Collection)result) {
-						createChild(parentElement, o);
-					}
-					return;
-				} else if (result instanceof Array) {
-					for (Object o:(Object[])result) {
-						createChild(parentElement, o);
-					}
-					return;
-				} else {
-					throw new ElementBindingHandlerException("Unsuported return type: "+result.getClass()+" from: "+getMethod+" on: "+parentObject);
-				}
+				result = m.invoke(parentObject, new Object[]{});
 			} catch (Exception e) {
-				throw new ElementBindingHandlerException("Error invoke binding method of: "+getId()+" error: "+e.getMessage(),e);
+				throw new ElementBindingHandlerException("Invoke error: "+e.getMessage()+" from: "+getMethod+" on: "+parentObject+" id:"+getId(),e);
+			} 
+			if (result==null) {
+				break;
+			}
+			if (result instanceof List) {
+				for (Object o:(List)result) {
+					createSafeChild(parentElement, o);
+				}
+				return;
+			} else if (result instanceof Collection) {
+				for (Object o:(Collection)result) {
+					createSafeChild(parentElement, o);
+				}
+				return;
+			} else if (result.getClass().isArray()) {
+				for (Object o:(Object[])result) {
+					createSafeChild(parentElement, o);
+				}
+				return;
+			} else if (childClass.isAssignableFrom(result.getClass())) {
+				createSafeChild(parentElement, result);
+				return;
+			} else {
+				throw new ElementBindingHandlerException("Unsuported return type: "+result.getClass()+" need: "+childClass+" from: "+getMethod+" on: "+parentObject+" id:"+getId());
 			}
 		}
 		throw new ElementBindingHandlerException("Could not find method: "+getMethod+" on: "+parentObject+" id:"+getId());
-		
-	//	
 	}
 	
+	
+	protected void createSafeChild(Element parentElement,Object childObject) {
+		if (childClass.isAssignableFrom(childObject.getClass())==false) {
+			return;
+		}
+		if (skipChilderenClassRegex!=null) {
+			if (childObject.getClass().getName().matches(skipChilderenClassRegex)) {
+				return; // skip
+			}
+		}
+		createChild(parentElement,childObject);
+	}
+	
+	
 	/**
 	 * @return the parentClass
 	 */
@@ -192,4 +208,18 @@ public class ElementRefectionBindingHandler extends AbstractElementBindingHandle
 	public void setGetMethod(String getMethod) {
 		this.getMethod = getMethod;
 	}
+
+	/**
+	 * @return the skipChilderenClassRegex
+	 */
+	public String getSkipChilderenClassRegex() {
+		return skipChilderenClassRegex;
+	}
+
+	/**
+	 * @param skipChilderenClassRegex the skipChilderenClassRegex to set
+	 */
+	public void setSkipChilderenClassRegex(String skipChilderenClassRegex) {
+		this.skipChilderenClassRegex = skipChilderenClassRegex;
+	}
 }
diff --git a/x4o-driver/src/main/java/org/x4o/xml/element/DefaultElementObjectPropertyValue.java b/x4o-driver/src/main/java/org/x4o/xml/element/DefaultElementObjectPropertyValue.java
index c938d55..f48f22d 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/element/DefaultElementObjectPropertyValue.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/element/DefaultElementObjectPropertyValue.java
@@ -272,7 +272,11 @@ public class DefaultElementObjectPropertyValue implements ElementObjectPropertyV
 		
 		// a bit hackie
 		for(int i=0;i<methodes.length;i++) {
-			Method method = methodes[i];				
+			Method method = methodes[i];
+			Class<?>[] types = method.getParameterTypes();
+			if (types.length != 0) {
+				continue;
+			}
 			if(method.getName().equalsIgnoreCase(parameterNameSet)) {
 				logger.finest("Found method: "+method.getName());
 				lastMethod = method;
@@ -282,7 +286,7 @@ public class DefaultElementObjectPropertyValue implements ElementObjectPropertyV
 		
 		if (lastMethod==null) {
 			for(int i=0;i<methodes.length;i++) {
-				Method method = methodes[i];				
+				Method method = methodes[i];
 				if(method.getName().equalsIgnoreCase("is"+parameterName)) {
 					logger.finest("Found is method: "+method.getName());
 					lastMethod = method;
@@ -302,7 +306,7 @@ public class DefaultElementObjectPropertyValue implements ElementObjectPropertyV
 
 		Object result = null;
 		try {
-			result = lastMethod.invoke(object);
+			result = lastMethod.invoke(object,new Object[]{});
 		} catch (Exception e) {
 			throw new ElementObjectPropertyValueException(e.getMessage(),e);
 		}
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OConnection.java b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OConnection.java
index 4434109..f1d2c8a 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OConnection.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OConnection.java
@@ -26,6 +26,12 @@ package org.x4o.xml.io;
 import org.x4o.xml.lang.X4OLanguageContext;
 import org.x4o.xml.lang.X4OLanguageProperty;
 
+/**
+ * AbstractX4OConnection is the read/write interface for the classes.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public abstract class AbstractX4OConnection implements X4OConnection {
 	
 	private X4OLanguageContext languageContext = null;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriter.java
index 6fca4f7..bb276e9 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriter.java
@@ -36,6 +36,12 @@ import org.x4o.xml.lang.X4OLanguageContext;
 import org.x4o.xml.lang.X4OLanguagePropertyKeys;
 import org.xml.sax.SAXException;
 
+/**
+ * AbstractX4OWriter.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public abstract class AbstractX4OWriter<T> extends AbstractX4OWriterContext<T> implements X4OWriter<T> {
 
 	public AbstractX4OWriter(X4OLanguageContext elementLanguage) {
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriterContext.java b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriterContext.java
index 5a93f2e..16e8e94 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriterContext.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OWriterContext.java
@@ -34,6 +34,12 @@ import javax.xml.parsers.ParserConfigurationException;
 import org.x4o.xml.lang.X4OLanguageContext;
 import org.xml.sax.SAXException;
 
+/**
+ * AbstractX4OWriterContext.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public abstract class AbstractX4OWriterContext<T> extends AbstractX4OConnection implements X4OWriterContext<T> {
 
 	public AbstractX4OWriterContext(X4OLanguageContext elementLanguage) {
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4ODriver.java b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4ODriver.java
index 07d7845..dd7581c 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4ODriver.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4ODriver.java
@@ -25,6 +25,12 @@ package org.x4o.xml.io;
 
 import org.x4o.xml.X4ODriver;
 
+/**
+ * DefaultX4ODriver can be used to create language without code and type safty.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public class DefaultX4ODriver<T> extends X4ODriver<T> {
 
 	private final String languageName;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OSchemaWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OSchemaWriter.java
index 493a212..c1777fa 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OSchemaWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OSchemaWriter.java
@@ -30,6 +30,12 @@ import org.x4o.xml.element.ElementException;
 import org.x4o.xml.lang.X4OLanguageContext;
 import org.x4o.xml.lang.X4OLanguagePropertyKeys;
 
+/**
+ * DefaultX4OSchemaWriter can write the schema of a x4o language.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public class DefaultX4OSchemaWriter extends AbstractX4OConnection implements X4OSchemaWriter {
 	
 	public DefaultX4OSchemaWriter(X4OLanguageContext languageContext) {
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OWriter.java
index 8315595..7486ebb 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/DefaultX4OWriter.java
@@ -44,12 +44,17 @@ import org.x4o.xml.element.ElementNamespaceContext;
 import org.x4o.xml.element.ElementNamespaceInstanceProviderException;
 import org.x4o.xml.element.ElementObjectPropertyValueException;
 import org.x4o.xml.io.sax.XMLWriter;
-import org.x4o.xml.lang.X4OLanguage;
 import org.x4o.xml.lang.X4OLanguageContext;
 import org.x4o.xml.lang.X4OLanguageModule;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
+/**
+ * DefaultX4OWriter can write the xml language.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public class DefaultX4OWriter<T> extends AbstractX4OWriter<T> {
 
 	public DefaultX4OWriter(X4OLanguageContext elementLanguage) {
@@ -115,6 +120,9 @@ public class DefaultX4OWriter<T> extends AbstractX4OWriter<T> {
 			if (m.getName().startsWith("get")==false) {
 				continue;
 			}
+			if(m.getName().startsWith("getLocationOnScreen")) {
+				continue; // TODO: rm this
+			}
 			String name = m.getName().substring(3,4).toLowerCase()+m.getName().substring(4);
 			result.add(name);
 			
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OConnection.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OConnection.java
index 5b7e1ba..6507119 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OConnection.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OConnection.java
@@ -23,6 +23,12 @@
 
 package org.x4o.xml.io;
 
+/**
+ * X4OConnection interface for config the io drivers.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OConnection {
 	
 	/**
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OReader.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OReader.java
index 4f19e03..18bd13b 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OReader.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OReader.java
@@ -33,6 +33,12 @@ import javax.xml.parsers.ParserConfigurationException;
 
 import org.xml.sax.SAXException;
 
+/**
+ * X4OReader can read different input formats.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OReader<T> extends X4OConnection {
 
 	public void addELBeanInstance(String name,Object bean);
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OReaderContext.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OReaderContext.java
index 45b3c0c..9bd2204 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OReaderContext.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OReaderContext.java
@@ -35,6 +35,12 @@ import org.x4o.xml.lang.X4OLanguageContext;
 import org.x4o.xml.lang.phase.X4OPhaseException;
 import org.xml.sax.SAXException;
 
+/**
+ * X4OReaderContext is reader with language context.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OReaderContext<T> extends X4OReader<T> {
 	
 	void releaseContext(X4OLanguageContext context) throws X4OPhaseException;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OSchemaWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OSchemaWriter.java
index ec0dfdf..3e6c14c 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OSchemaWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OSchemaWriter.java
@@ -27,6 +27,12 @@ import java.io.File;
 
 import org.x4o.xml.element.ElementException;
 
+/**
+ * X4OSchemaWriter can write the schema for the language.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OSchemaWriter extends X4OConnection {
 
 	void writeSchema(File basePath) throws ElementException;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriter.java
index 0e578db..f04ab4a 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriter.java
@@ -32,6 +32,12 @@ import javax.xml.parsers.ParserConfigurationException;
 
 import org.xml.sax.SAXException;
 
+/**
+ * X4OWriter can write the xml language.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OWriter<T> extends X4OConnection {
 
 	void write(T object,OutputStream out) throws ParserConfigurationException,FileNotFoundException,SecurityException,NullPointerException,SAXException,IOException;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriterContext.java b/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriterContext.java
index 73c65bf..7b12816 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriterContext.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/X4OWriterContext.java
@@ -33,6 +33,12 @@ import javax.xml.parsers.ParserConfigurationException;
 import org.x4o.xml.lang.X4OLanguageContext;
 import org.xml.sax.SAXException;
 
+/**
+ * X4OWriterContext is writer with language context.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 6, 2013
+ */
 public interface X4OWriterContext<T> extends X4OWriter<T> {
 
 	void writeContext(X4OLanguageContext context,OutputStream out) throws ParserConfigurationException,FileNotFoundException,SecurityException,NullPointerException,SAXException,IOException;
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/XMLConstants.java b/x4o-driver/src/main/java/org/x4o/xml/io/XMLConstants.java
index d831cad..c20f46a 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/XMLConstants.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/XMLConstants.java
@@ -196,6 +196,18 @@ public final class XMLConstants {
 		return false;
 	}
 	
+	static public boolean isNameString(String value) {
+		for (int i=0;i<value.length();i++) {
+			char c = value.charAt(i);
+			if (i==0 && isNameStartChar(c)==false) {
+				return false;
+			} else if (isNameChar(c)==false) {
+				return false;
+			}
+		}
+		return true;
+	}
+	
 	static public String escapeAttributeValue(String value) {
 		int l = value.length();
 		StringBuffer result = new StringBuffer(l);
diff --git a/x4o-driver/src/main/java/org/x4o/xml/io/sax/XMLWriter.java b/x4o-driver/src/main/java/org/x4o/xml/io/sax/XMLWriter.java
index fc34c88..587ee40 100644
--- a/x4o-driver/src/main/java/org/x4o/xml/io/sax/XMLWriter.java
+++ b/x4o-driver/src/main/java/org/x4o/xml/io/sax/XMLWriter.java
@@ -163,6 +163,9 @@ public class XMLWriter extends DefaultHandler2 {
 		if (localName==null) {
 			localName = "null";
 		}
+		if (XMLConstants.isNameString(localName)==false) {
+			throw new SAXException("LocalName of element is not valid in xml; '"+localName+"'");
+		}
 		
 		if (XMLConstants.NULL_NS_URI.equals(uri) | uri==null) {
 			startElement.append(localName);
diff --git a/x4o-driver/src/test/java/org/x4o/xml/io/X4OWriterTest.java b/x4o-driver/src/test/java/org/x4o/xml/io/X4OWriterTest.java
index 19dce9a..17803f3 100644
--- a/x4o-driver/src/test/java/org/x4o/xml/io/X4OWriterTest.java
+++ b/x4o-driver/src/test/java/org/x4o/xml/io/X4OWriterTest.java
@@ -23,16 +23,18 @@
 
 package org.x4o.xml.io;
 
+import java.awt.Component;
 import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.Scanner;
 
 import org.x4o.xml.X4ODriver;
 import org.x4o.xml.io.X4OReader;
-import org.x4o.xml.lang.X4OLanguagePropertyKeys;
 import org.x4o.xml.test.TestDriver;
 import org.x4o.xml.test.models.TestObjectRoot;
+import org.x4o.xml.test.swixml.Accelerator3;
+import org.x4o.xml.test.swixml.SwiXmlDriver;
+import org.x4o.xml.test.swixml.SwingEngine;
 
 import junit.framework.TestCase;
 
@@ -67,4 +69,25 @@ public class X4OWriterTest extends TestCase {
 		
 		outputFile.delete();
 	}
+	
+	public void testWriterSwiXmlOutput() throws Exception {
+		Accelerator3 ac3 = new Accelerator3(false);
+		SwingEngine engine = new SwingEngine(ac3);
+		
+		File outputFile = createOutputFile();
+		X4ODriver<Component> driver = SwiXmlDriver.getInstance();
+		X4OReader<Component> reader = driver.createReader();
+		X4OWriter<Component> writer = driver.createWriter();
+		
+		reader.addELBeanInstance(SwiXmlDriver.LANGUAGE_EL_SWING_ENGINE, engine);
+		Component root = reader.readResource("tests/swixml/swixml-accelerator-3.0.xml");
+		writer.writeFile(root, outputFile);
+		
+		assertTrue("Debug file does not exists.",outputFile.exists());
+		
+		//String text = new Scanner( outputFile ).useDelimiter("\\A").next();
+		//System.out.println("Output: '\n"+text+"\n' end in "+outputFile.getAbsolutePath());
+		
+		outputFile.delete();
+	}
 }
diff --git a/x4o-driver/src/test/java/org/x4o/xml/test/swixml/SwiXmlDriver.java b/x4o-driver/src/test/java/org/x4o/xml/test/swixml/SwiXmlDriver.java
index c702003..84f9464 100644
--- a/x4o-driver/src/test/java/org/x4o/xml/test/swixml/SwiXmlDriver.java
+++ b/x4o-driver/src/test/java/org/x4o/xml/test/swixml/SwiXmlDriver.java
@@ -29,11 +29,7 @@ import javax.el.ValueExpression;
 
 import org.x4o.xml.X4ODriver;
 import org.x4o.xml.X4ODriverManager;
-import org.x4o.xml.lang.DefaultX4OLanguage;
-import org.x4o.xml.lang.DefaultX4OLanguageConfiguration;
 import org.x4o.xml.lang.X4OLanguageContext;
-import org.x4o.xml.lang.X4OLanguage;
-import org.x4o.xml.lang.X4OLanguagePropertyKeys;
 
 /**
  * SwiXmlParser works with the SwingEngine to config the UI tree.
diff --git a/x4o-driver/src/test/java/org/x4o/xml/test/swixml/bind/JInternalFrameBindingHandler.java b/x4o-driver/src/test/java/org/x4o/xml/test/swixml/bind/JInternalFrameBindingHandler.java
index 459af57..afdf2cd 100644
--- a/x4o-driver/src/test/java/org/x4o/xml/test/swixml/bind/JInternalFrameBindingHandler.java
+++ b/x4o-driver/src/test/java/org/x4o/xml/test/swixml/bind/JInternalFrameBindingHandler.java
@@ -86,6 +86,9 @@ public class JInternalFrameBindingHandler extends AbstractElementBindingHandler<
 	public void createChilderen(Element parentElement,JInternalFrame parent) throws ElementBindingHandlerException {
 		for (Component c:parent.getComponents()) {
 			if (c instanceof JComponent) {
+				if (c.getClass().getName().startsWith("javax.swing.plaf")) {
+					return;
+				}
 				createChild(parentElement, c);
 			}
 		}
diff --git a/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-2.0.eld b/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-2.0.eld
index 501d178..eb0ec5a 100644
--- a/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-2.0.eld
+++ b/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-2.0.eld
@@ -43,6 +43,7 @@
 	<classBindingHandler id="JFrame-JDesktopPane"			parentClass="javax.swing.JFrame"			childClass="javax.swing.JDesktopPane"	addMethod="setContentPane"		getMethod="getContentPane"/>
 	<classBindingHandler id="JMenuBar-JMenu"				parentClass="javax.swing.JMenuBar"			childClass="javax.swing.JMenu"			addMethod="add"		getMethod="getComponents"/>
 	<classBindingHandler id="JMenu-JMenuItem"				parentClass="javax.swing.JMenu"				childClass="javax.swing.JMenuItem"		addMethod="add"		getMethod="getComponents"/>
+	<classBindingHandler id="JRootPane-JComponent"			parentClass="javax.swing.JRootPane"			childClass="javax.swing.JComponent"		addMethod="add"		getMethod="getComponents"/>
 	
 	<elementInterface id="Component" interfaceClass="java.awt.Component">
 		<attribute name="bounds">
@@ -128,6 +129,8 @@
 				<conv:integerConverter/>
 			</attribute>
 		</element>
+		<element tag="layeredPane"		objectClass="javax.swing.JLayeredPane"/>
+		<element tag="rootPane"			objectClass="javax.swing.JRootPane"/>
 		<element tag="scrollPane"		objectClass="javax.swing.JScrollPane"/>
 		<element tag="tree"				objectClass="javax.swing.JTree"/>
 		<element tag="button"			objectClass="javax.swing.JButton">
diff --git a/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-3.0.eld b/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-3.0.eld
index ab2cd2b..f858914 100644
--- a/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-3.0.eld
+++ b/x4o-driver/src/test/resources/META-INF/swixml/swixml-lang-3.0.eld
@@ -39,10 +39,11 @@
 	<bindingHandler id="JPanelBindingHandler"			bean.class="org.x4o.xml.test.swixml.bind.JPanelBindingHandler"/>
 	<bindingHandler id="JSplitPaneBindingHandler" 		bean.class="org.x4o.xml.test.swixml.bind.JSplitPaneBindingHandler"/>
 	<classBindingHandler id="JScrollPane-JComponent"		parentClass="javax.swing.JScrollPane"		childClass="javax.swing.JComponent"		addMethod="setViewportView"		getMethod="getViewport"/>
-	<classBindingHandler id="JDesktopPane-JInternalFrame"	parentClass="javax.swing.JDesktopPane"		childClass="javax.swing.JInternalFrame"	addMethod="add"		getMethod="getComponents"/>
+	<classBindingHandler id="JDesktopPane-JInternalFrame"	parentClass="javax.swing.JDesktopPane"		childClass="javax.swing.JInternalFrame"	addMethod="add"		getMethod="getComponents" />
 	<classBindingHandler id="JFrame-JDesktopPane"			parentClass="javax.swing.JFrame"			childClass="javax.swing.JDesktopPane"	addMethod="setContentPane"		getMethod="getContentPane"/>
 	<classBindingHandler id="JMenuBar-JMenu"				parentClass="javax.swing.JMenuBar"			childClass="javax.swing.JMenu"			addMethod="add"		getMethod="getComponents"/>
 	<classBindingHandler id="JMenu-JMenuItem"				parentClass="javax.swing.JMenu"				childClass="javax.swing.JMenuItem"		addMethod="add"		getMethod="getComponents"/>
+	<classBindingHandler id="JRootPane-JComponent"			parentClass="javax.swing.JRootPane"			childClass="javax.swing.JComponent"		addMethod="add"		getMethod="getComponents"/>
 	
 	<elementInterface id="Component" interfaceClass="java.awt.Component">
 		<attribute name="bounds">
@@ -122,6 +123,9 @@
 				<conv:integerConverter/>
 			</attribute>
 		</element>
+		
+		<element tag="JLayeredPane"		objectClass="javax.swing.JLayeredPane"/>
+		<element tag="JRootPane"		objectClass="javax.swing.JRootPane"/>
 		<element tag="JScrollPane"		objectClass="javax.swing.JScrollPane"/>
 		<element tag="JTree"			objectClass="javax.swing.JTree"/>
 		<element tag="JButton"			objectClass="javax.swing.JButton"/>