diff --git a/basic/src/main/java/org/jvnet/jaxb2_commons/plugin/elementwrapper/ElementWrapperPlugin.java b/basic/src/main/java/org/jvnet/jaxb2_commons/plugin/elementwrapper/ElementWrapperPlugin.java
index 5a4e6ec1..364ea76d 100644
--- a/basic/src/main/java/org/jvnet/jaxb2_commons/plugin/elementwrapper/ElementWrapperPlugin.java
+++ b/basic/src/main/java/org/jvnet/jaxb2_commons/plugin/elementwrapper/ElementWrapperPlugin.java
@@ -184,7 +184,8 @@ protected void processWrappedElementPropertyInfo(
 				wrappedPropertyInfo.isCollection(),
 				wrappedPropertyInfo.getTypeInfo(),
 				wrappedPropertyInfo.getElementName(),
-				wrapperPropertyInfo.getElementName());
+				wrapperPropertyInfo.getWrapperElementName(),
+				wrappedPropertyInfo.isNillable());
 
 		rootClassInfo.addProperty(propertyInfo);
 
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MElementTypeInfo.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MElementTypeInfo.java
index fe281ce6..fe0d79aa 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MElementTypeInfo.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MElementTypeInfo.java
@@ -2,7 +2,8 @@
 
 import javax.xml.namespace.QName;
 
-public interface MElementTypeInfo<T, C extends T> extends MTyped<T, C> {
+public interface MElementTypeInfo<T, C extends T> extends MTyped<T, C>,
+		MNillable {
 
 	public QName getElementName();
 
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MNillable.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MNillable.java
new file mode 100644
index 00000000..7af37409
--- /dev/null
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/MNillable.java
@@ -0,0 +1,6 @@
+package org.jvnet.jaxb2_commons.xml.bind.model;
+
+public interface MNillable {
+
+	public boolean isNillable();
+}
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementInfo.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementInfo.java
index 660c2a16..87f0796f 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementInfo.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementInfo.java
@@ -95,6 +95,11 @@ public MTypeInfo<T, C> getTypeInfo() {
 	public QName getSubstitutionHead() {
 		return substitutionHead;
 	}
+	
+	@Override
+	public boolean isNillable() {
+		return true;
+	}
 
 	public String toString() {
 		return MessageFormat.format("ElementInfo [{0}: {1}]", getElementName(),
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementPropertyInfo.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementPropertyInfo.java
index 6e798e73..8adcd847 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementPropertyInfo.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementPropertyInfo.java
@@ -14,15 +14,17 @@ public class CMElementPropertyInfo<T, C extends T> extends CMPropertyInfo<T, C>
 	private final MTypeInfo<T, C> typeInfo;
 	private final QName elementName;
 	private final QName wrapperElementName;
+	private final boolean nillable;
 
 	public CMElementPropertyInfo(MPropertyInfoOrigin origin,
 			MClassInfo<T, C> classInfo, String privateName, boolean collection,
 			MTypeInfo<T, C> typeInfo, QName elementName,
-			QName wrapperElementName) {
+			QName wrapperElementName, boolean nillable) {
 		super(origin, classInfo, privateName, collection);
 		this.typeInfo = typeInfo;
 		this.elementName = elementName;
 		this.wrapperElementName = wrapperElementName;
+		this.nillable = nillable;
 	}
 
 	public MTypeInfo<T, C> getTypeInfo() {
@@ -36,6 +38,11 @@ public QName getElementName() {
 	public QName getWrapperElementName() {
 		return wrapperElementName;
 	}
+	
+	@Override
+	public boolean isNillable() {
+		return nillable;
+	}
 
 	public <V> V acceptPropertyInfoVisitor(MPropertyInfoVisitor<T, C, V> visitor) {
 		return visitor.visitElementPropertyInfo(this);
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementRefPropertyInfo.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementRefPropertyInfo.java
index 742daf05..565c7a80 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementRefPropertyInfo.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementRefPropertyInfo.java
@@ -56,6 +56,11 @@ public boolean isDomAllowed() {
 	public boolean isTypedObjectAllowed() {
 		return typedObjectAllowed;
 	}
+	
+	@Override
+	public boolean isNillable() {
+		return true;
+	}
 
 	public <V> V acceptPropertyInfoVisitor(MPropertyInfoVisitor<T, C, V> visitor) {
 		return visitor.visitElementRefPropertyInfo(this);
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementTypeInfo.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementTypeInfo.java
index 583a839b..5d940a2b 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementTypeInfo.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMElementTypeInfo.java
@@ -12,11 +12,14 @@ public class CMElementTypeInfo<T, C extends T> implements MElementTypeInfo<T, C>
 
 	private final MTypeInfo<T, C> typeInfo;
 
-	public CMElementTypeInfo(QName elementName, MTypeInfo<T, C> typeInfo) {
+	private final boolean nillable;
+
+	public CMElementTypeInfo(QName elementName, MTypeInfo<T, C> typeInfo, boolean nillable) {
 		Validate.notNull(elementName);
 		Validate.notNull(typeInfo);
 		this.elementName = elementName;
 		this.typeInfo = typeInfo;
+		this.nillable = nillable;
 	}
 
 	public QName getElementName() {
@@ -26,7 +29,12 @@ public QName getElementName() {
 	public MTypeInfo<T, C> getTypeInfo() {
 		return typeInfo;
 	}
-
+	
+	public boolean isNillable()
+	{
+		return this.nillable;
+	}
+	
 	@Override
 	public String toString() {
 		return "Element [" + getElementName() + ":" + getTypeInfo() + "]";
diff --git a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMInfoFactory.java b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMInfoFactory.java
index 86f16bb3..998ff098 100644
--- a/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMInfoFactory.java
+++ b/runtime/src/main/java/org/jvnet/jaxb2_commons/xml/bind/model/concrete/CMInfoFactory.java
@@ -368,7 +368,8 @@ protected MPropertyInfo<T, C> createElementPropertyInfo(
 		return new CMElementPropertyInfo<T, C>(
 				createPropertyInfoOrigin((PI) ep), classInfo, ep.getName(),
 				ep.isCollection() && !ep.isValueList(),
-				getTypeInfo(ep, typeRef), typeRef.getTagName(), ep.getXmlName());
+				getTypeInfo(ep, typeRef), typeRef.getTagName(),
+				ep.getXmlName(), typeRef.isNillable());
 	}
 
 	protected MPropertyInfo<T, C> createElementsPropertyInfo(
@@ -378,7 +379,7 @@ protected MPropertyInfo<T, C> createElementsPropertyInfo(
 				types.size());
 		for (TypeRef<T, C> typeRef : types) {
 			typedElements.add(new CMElementTypeInfo<T, C>(typeRef.getTagName(),
-					getTypeInfo(ep, typeRef)));
+					getTypeInfo(ep, typeRef), typeRef.isNillable()));
 		}
 		return new CMElementsPropertyInfo<T, C>(
 				createPropertyInfoOrigin((PI) ep), classInfo, ep.getName(),
@@ -404,7 +405,7 @@ protected MPropertyInfo<T, C> createElementRefPropertyInfo(
 
 				rp.isMixed(), rp.getWildcard() == null ? false
 						: rp.getWildcard().allowDom,
-				rp.getWildcard() == null ? false
+				rp.getWildcard() == null ? true
 						: rp.getWildcard().allowTypedObject);
 	}
 
@@ -413,14 +414,14 @@ protected MPropertyInfo<T, C> createElementRefsPropertyInfo(
 		final List<MElementTypeInfo<T, C>> typedElements = new ArrayList<MElementTypeInfo<T, C>>();
 		for (Element<T, C> element : rp.getElements()) {
 			typedElements.add(new CMElementTypeInfo<T, C>(element
-					.getElementName(), getTypeInfo(rp, element)));
+					.getElementName(), getTypeInfo(rp, element), true));
 		}
 		return new CMElementRefsPropertyInfo<T, C>(
 				createPropertyInfoOrigin((PI) rp), classInfo, rp.getName(),
 				rp.isCollection(), typedElements, rp.getXmlName(),
 				rp.isMixed(), rp.getWildcard() == null ? false
 						: rp.getWildcard().allowDom,
-				rp.getWildcard() == null ? false
+				rp.getWildcard() == null ? true
 						: rp.getWildcard().allowTypedObject);
 	}