diff -r e126d8eca69b -r b0c2840e2513 src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java
--- a/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java	Thu Oct 31 12:36:20 2013 -0700
+++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java	Fri Nov 22 21:11:19 2013 +0100
@@ -42,7 +42,6 @@
 import com.sun.xml.internal.bind.v2.ClassFactory;
 import com.sun.xml.internal.bind.v2.util.QNameMap;
 import com.sun.xml.internal.bind.v2.model.core.PropertyKind;
-import com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator;
 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeMapPropertyInfo;
 import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
 import com.sun.xml.internal.bind.v2.runtime.JaxBeanInfo;
@@ -98,7 +97,8 @@
         this.valueBeanInfo = context.getOrCreate(prop.getValueType());
 
         // infer the implementation class
-        Class<ValueT> sig = ReflectionNavigator.REFLECTION.erasure(prop.getRawType());
+        //noinspection unchecked
+        Class<ValueT> sig = (Class<ValueT>) Utils.REFLECTION_NAVIGATOR.erasure(prop.getRawType());
         mapImplClass = ClassFactory.inferImplClass(sig,knownImplClasses);
         // TODO: error check for mapImplClass==null
         // what is the error reporting path for this part of the code?
@@ -140,23 +140,22 @@
      */
     private final Loader itemsLoader = new Loader(false) {
 
-        private ThreadLocal<Stack<BeanT>> target = new ThreadLocal<Stack<BeanT>>();
-        private ThreadLocal<Stack<ValueT>> map = new ThreadLocal<Stack<ValueT>>();
+        private ThreadLocal<BeanT> target = new ThreadLocal<BeanT>();
+        private ThreadLocal<ValueT> map = new ThreadLocal<ValueT>();
+        private int depthCounter = 0; // needed to clean ThreadLocals
 
         @Override
         public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
             // create or obtain the Map object
             try {
-                BeanT target = (BeanT) state.prev.target;
-                ValueT mapValue = acc.get(target);
-                if(mapValue == null)
-                    mapValue = ClassFactory.create(mapImplClass);
-                else
-                    mapValue.clear();
-
-                Stack.push(this.target, target);
-                Stack.push(map, mapValue);
-                state.target = mapValue;
+                target.set((BeanT)state.prev.target);
+                map.set(acc.get(target.get()));
+                depthCounter++;
+                if(map.get() == null) {
+                    map.set(ClassFactory.create(mapImplClass));
+                }
+                map.get().clear();
+                state.target = map.get();
             } catch (AccessorException e) {
                 // recover from error by setting a dummy Map that receives and discards the values
                 handleGenericException(e,true);
@@ -168,7 +167,11 @@
         public void leaveElement(State state, TagName ea) throws SAXException {
             super.leaveElement(state, ea);
             try {
-                acc.set(Stack.pop(target), Stack.pop(map));
+                acc.set(target.get(), map.get());
+                if (--depthCounter == 0) {
+                    target.remove();
+                    map.remove();
+                }
             } catch (AccessorException ex) {
                 handleGenericException(ex,true);
             }
@@ -286,36 +289,4 @@
             return acc;
         return null;
     }
-
-    private static final class Stack<T> {
-        private Stack<T> parent;
-        private T value;
-
-        private Stack(Stack<T> parent, T value) {
-            this.parent = parent;
-            this.value = value;
-        }
-
-        private Stack(T value) {
-            this.value = value;
-        }
-
-        private static <T> void push(ThreadLocal<Stack<T>> holder, T value) {
-            Stack<T> parent = holder.get();
-            if (parent == null)
-                holder.set(new Stack<T>(value));
-            else
-                holder.set(new Stack<T>(parent, value));
-        }
-
-        private static <T> T pop(ThreadLocal<Stack<T>> holder) {
-            Stack<T> current = holder.get();
-            if (current.parent == null)
-                holder.remove();
-            else
-                holder.set(current.parent);
-            return current.value;
-        }
-
-    }
 }