Merge changes up to trunk@1022963.

git-svn-id: https://svn.apache.org/repos/asf/harmony/enhanced/java/branches/mrh@1023369 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/classlib/modules/beans/main/java/java/beans/UtilCollectionsPersistenceDelegate.java b/classlib/modules/beans/main/java/java/beans/UtilCollectionsPersistenceDelegate.java
new file mode 100644
index 0000000..3390e11
--- /dev/null
+++ b/classlib/modules/beans/main/java/java/beans/UtilCollectionsPersistenceDelegate.java
@@ -0,0 +1,208 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package java.beans;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.SortedSet;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import org.apache.harmony.beans.BeansUtils;
+
+public class UtilCollectionsPersistenceDelegate extends PersistenceDelegate {
+
+    static String CLASS_PREFIX = "java.util.Collections$"; //$NON-NLS-1$
+
+    private static final String COLLECTIONS_TYPE = "type"; //$NON-NLS-1$
+
+    private static final String MAP_KEY_TYPE = "keyType"; //$NON-NLS-1$
+
+    private static final String MAP_VALUE_TYPE = "valueType"; //$NON-NLS-1$
+
+    protected boolean mutatesTo(Object o1, Object o2) {
+        if (BeansUtils.declaredEquals(o1.getClass())) {
+            return o1.equals(o2);
+        }
+        if (o1 instanceof Collection<?>) {
+            Collection<?> c1 = (Collection<?>) o1;
+            Collection<?> c2 = (Collection<?>) o2;
+            return c1.size() == c2.size() && c1.containsAll(c2);
+        }
+        if (o1 instanceof Map<?, ?>) {
+            Map<?, ?> m1 = (Map<?, ?>) o1;
+            Map<?, ?> m2 = (Map<?, ?>) o2;
+            return m1.size() == m2.size()
+                    && m1.entrySet().containsAll(m2.entrySet());
+        }
+        return super.mutatesTo(o1, o2);
+    }
+
+    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @Override
+    protected Expression instantiate(Object oldInstance, Encoder enc) {
+        String className = oldInstance.getClass().getName();
+        if (className.endsWith("UnmodifiableCollection")) { //$NON-NLS-1$
+            // Collections.unmodifiableCollection(Collection);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableCollection", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableList")) { //$NON-NLS-1$
+            // Collections.unmodifiableList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableList", new Object[] { new LinkedList(
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableRandomAccessList")) { //$NON-NLS-1$
+            // Collections.unmodifiableList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableList", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSet")) { //$NON-NLS-1$
+            // Collections.unmodifiableSet(Set);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSet", new Object[] { new HashSet( //$NON-NLS-1$
+                            (Set) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSortedSet")) { //$NON-NLS-1$
+            // Collections.unmodifiableSortedSet(set)
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSortedSet", new Object[] { new TreeSet( //$NON-NLS-1$
+                            (SortedSet) oldInstance) });
+        } else if (className.endsWith("UnmodifiableMap")) { //$NON-NLS-1$
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableMap", new Object[] { new HashMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSortedMap")) { //$NON-NLS-1$
+            // Collections.unmodifiableSortedMap(SortedMap);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSortedMap", new Object[] { new TreeMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("SynchronizedCollection")) { //$NON-NLS-1$
+            // Collections.synchronizedCollection(Collection);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedCollection", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("SynchronizedList")) { //$NON-NLS-1$
+            // Collections.synchronizedList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedList", new Object[] { new LinkedList( //$NON-NLS-1$
+                            (List) oldInstance) });
+        } else if (className.endsWith("SynchronizedRandomAccessList")) { //$NON-NLS-1$
+            // Collections.synchronizedList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedList", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (List) oldInstance) });
+        } else if (className.endsWith("SynchronizedSet")) { //$NON-NLS-1$
+            // Collections.synchronizedSet(Set);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSet", new Object[] { new HashSet( //$NON-NLS-1$
+                            (Set) oldInstance) });
+        } else if (className.endsWith("SynchronizedSortedSet")) { //$NON-NLS-1$
+            // Collections.synchronizedSortedSet(SortedSet);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSortedSet", new Object[] { new TreeSet( //$NON-NLS-1$
+                            (SortedSet) oldInstance) });
+        } else if (className.endsWith("SynchronizedMap")) { //$NON-NLS-1$
+            // Collections.synchronizedMap(Map);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedMap", new Object[] { new HashMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("SynchronizedSortedMap")) { //$NON-NLS-1$
+            // Collections.synchronizedSortedMap(SortedMap)
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSortedMap", new Object[] { new TreeMap( //$NON-NLS-1$
+                            (SortedMap) oldInstance) });
+        } else if (className.endsWith("CheckedCollection")) { //$NON-NLS-1$
+            // Collections.checkedCollection(Collection, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedCollection", new Object[] { //$NON-NLS-1$
+                    new ArrayList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedList")) { //$NON-NLS-1$
+            // Collections.checkedList(List, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedList", new Object[] {
+                            new LinkedList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedRandomAccessList")) { //$NON-NLS-1$
+            // Collections.checkedList(List, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedList", new Object[] { //$NON-NLS-1$
+                    new ArrayList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedSet")) { //$NON-NLS-1$
+            // Collections.checkedSet(Set, Class);
+            return new Expression(oldInstance, Collections.class, "checkedSet", //$NON-NLS-1$
+                    new Object[] { new HashSet((Set) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedSortedSet")) { //$NON-NLS-1$
+            // Collections.checkedSortedSet(SortedSet, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedSortedSet", new Object[] { //$NON-NLS-1$
+                    new TreeSet((Set) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedMap")) { //$NON-NLS-1$
+            // Collections.checkedMap(Map, keyType, valueType);
+            return new Expression(oldInstance, Collections.class, "checkedMap", //$NON-NLS-1$
+                    new Object[] { new HashMap((Map) oldInstance),
+                            valueOfField(oldInstance, MAP_KEY_TYPE),
+                            valueOfField(oldInstance, MAP_VALUE_TYPE) });
+        } else if (className.endsWith("CheckedSortedMap")) { //$NON-NLS-1$
+            // Collections.checkedSortedMap(SortedMap, keyType, valueType);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedSortedMap", new Object[] { //$NON-NLS-1$
+                    new TreeMap((Map) oldInstance),
+                            valueOfField(oldInstance, MAP_KEY_TYPE),
+                            valueOfField(oldInstance, MAP_VALUE_TYPE) });
+        }
+        return null;
+    }
+
+    private static Object valueOfField(Object obj, String fieldName) {
+        Class<?> clazz = obj.getClass();
+        Field field = null;
+        while (clazz != null) {
+            for (Field declaredField : clazz.getDeclaredFields()) {
+                if (fieldName.equals(declaredField.getName())) {
+                    field = declaredField;
+                    break;
+                }
+            }
+            clazz = clazz.getSuperclass();
+        }
+        if (field != null) {
+            if (!field.isAccessible()) {
+                field.setAccessible(true);
+            }
+            try {
+                return field.get(obj);
+            } catch (Exception e) {
+                // Ignored
+            }
+        }
+        return null;
+    }
+}
diff --git a/classlib/modules/beans/src/main/java/java/beans/DefaultPersistenceDelegate.java b/classlib/modules/beans/src/main/java/java/beans/DefaultPersistenceDelegate.java
index bd43dac..556664f 100644
--- a/classlib/modules/beans/src/main/java/java/beans/DefaultPersistenceDelegate.java
+++ b/classlib/modules/beans/src/main/java/java/beans/DefaultPersistenceDelegate.java
@@ -141,10 +141,8 @@
                 Object targetVal = enc.get(oldVal);
                 Object newVal = new Expression(newInstance, getter.getName(),
                         null).getValue();
-                boolean invokeSetter = targetVal == null ? (newVal != null && oldVal == null)
-                        : !enc.getPersistenceDelegate(targetVal.getClass())
-                                .mutatesTo(targetVal, newVal);
-                if (invokeSetter) {
+                if (targetVal == null ? (newVal != null && oldVal == null)
+                        : targetVal != newVal && !targetVal.equals(newVal)) {
                     enc.writeStatement(new Statement(oldInstance, setter
                             .getName(), new Object[] { oldVal }));
                 }
diff --git a/classlib/modules/beans/src/main/java/java/beans/Encoder.java b/classlib/modules/beans/src/main/java/java/beans/Encoder.java
index e00bfb1..98d5d1a 100644
--- a/classlib/modules/beans/src/main/java/java/beans/Encoder.java
+++ b/classlib/modules/beans/src/main/java/java/beans/Encoder.java
@@ -71,6 +71,8 @@
 
     private static final DefaultPersistenceDelegate defaultPD = new DefaultPersistenceDelegate();
 
+    private static final UtilCollectionsPersistenceDelegate utilCollectionsPD = new UtilCollectionsPersistenceDelegate();
+
     private static final ArrayPersistenceDelegate arrayPD = new ArrayPersistenceDelegate();
 
     private static final ProxyPersistenceDelegate proxyPD = new ProxyPersistenceDelegate();
@@ -136,6 +138,19 @@
         delegates.put(ScrollPane.class, new AwtScrollPanePersistenceDelegate());
 
         delegates.put(Date.class, new UtilDatePersistenceDelegate());
+
+        PersistenceDelegate pd = new UtilListPersistenceDelegate();
+        delegates.put(java.util.List.class, pd);
+        delegates.put(java.util.AbstractList.class, pd);
+
+        pd = new UtilCollectionPersistenceDelegate();
+        delegates.put(java.util.Collection.class, pd);
+        delegates.put(java.util.AbstractCollection.class, pd);
+
+        pd = new UtilMapPersistenceDelegate();
+        delegates.put(java.util.Map.class, pd);
+        delegates.put(java.util.AbstractMap.class, pd);
+        delegates.put(java.util.Hashtable.class, pd);
     }
 
     private ExceptionListener listener = defaultExListener;
@@ -221,16 +236,9 @@
             return registeredPD;
         }
 
-        if (java.util.List.class.isAssignableFrom(type)) {
-            return new UtilListPersistenceDelegate();
-        }
-
-        if (Collection.class.isAssignableFrom(type)) {
-            return new UtilCollectionPersistenceDelegate();
-        }
-
-        if (Map.class.isAssignableFrom(type)) {
-            return new UtilMapPersistenceDelegate();
+        if (type.getName().startsWith(
+                UtilCollectionsPersistenceDelegate.CLASS_PREFIX)) {
+            return utilCollectionsPD;
         }
 
         if (type.isArray()) {
diff --git a/classlib/modules/beans/src/main/java/java/beans/UtilCollectionsPersistenceDelegate.java b/classlib/modules/beans/src/main/java/java/beans/UtilCollectionsPersistenceDelegate.java
new file mode 100644
index 0000000..a8fef58
--- /dev/null
+++ b/classlib/modules/beans/src/main/java/java/beans/UtilCollectionsPersistenceDelegate.java
@@ -0,0 +1,208 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package java.beans;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.SortedSet;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import org.apache.harmony.beans.BeansUtils;
+
+class UtilCollectionsPersistenceDelegate extends PersistenceDelegate {
+
+    static String CLASS_PREFIX = "java.util.Collections$"; //$NON-NLS-1$
+
+    private static final String COLLECTIONS_TYPE = "type"; //$NON-NLS-1$
+
+    private static final String MAP_KEY_TYPE = "keyType"; //$NON-NLS-1$
+
+    private static final String MAP_VALUE_TYPE = "valueType"; //$NON-NLS-1$
+
+    protected boolean mutatesTo(Object o1, Object o2) {
+        if (BeansUtils.declaredEquals(o1.getClass())) {
+            return o1.equals(o2);
+        }
+        if (o1 instanceof Collection<?>) {
+            Collection<?> c1 = (Collection<?>) o1;
+            Collection<?> c2 = (Collection<?>) o2;
+            return c1.size() == c2.size() && c1.containsAll(c2);
+        }
+        if (o1 instanceof Map<?, ?>) {
+            Map<?, ?> m1 = (Map<?, ?>) o1;
+            Map<?, ?> m2 = (Map<?, ?>) o2;
+            return m1.size() == m2.size()
+                    && m1.entrySet().containsAll(m2.entrySet());
+        }
+        return super.mutatesTo(o1, o2);
+    }
+
+    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @Override
+    protected Expression instantiate(Object oldInstance, Encoder enc) {
+        String className = oldInstance.getClass().getName();
+        if (className.endsWith("UnmodifiableCollection")) { //$NON-NLS-1$
+            // Collections.unmodifiableCollection(Collection);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableCollection", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableList")) { //$NON-NLS-1$
+            // Collections.unmodifiableList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableList", new Object[] { new LinkedList(
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableRandomAccessList")) { //$NON-NLS-1$
+            // Collections.unmodifiableList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableList", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSet")) { //$NON-NLS-1$
+            // Collections.unmodifiableSet(Set);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSet", new Object[] { new HashSet( //$NON-NLS-1$
+                            (Set) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSortedSet")) { //$NON-NLS-1$
+            // Collections.unmodifiableSortedSet(set)
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSortedSet", new Object[] { new TreeSet( //$NON-NLS-1$
+                            (SortedSet) oldInstance) });
+        } else if (className.endsWith("UnmodifiableMap")) { //$NON-NLS-1$
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableMap", new Object[] { new HashMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("UnmodifiableSortedMap")) { //$NON-NLS-1$
+            // Collections.unmodifiableSortedMap(SortedMap);
+            return new Expression(oldInstance, Collections.class,
+                    "unmodifiableSortedMap", new Object[] { new TreeMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("SynchronizedCollection")) { //$NON-NLS-1$
+            // Collections.synchronizedCollection(Collection);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedCollection", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (Collection) oldInstance) });
+        } else if (className.endsWith("SynchronizedList")) { //$NON-NLS-1$
+            // Collections.synchronizedList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedList", new Object[] { new LinkedList( //$NON-NLS-1$
+                            (List) oldInstance) });
+        } else if (className.endsWith("SynchronizedRandomAccessList")) { //$NON-NLS-1$
+            // Collections.synchronizedList(List);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedList", new Object[] { new ArrayList( //$NON-NLS-1$
+                            (List) oldInstance) });
+        } else if (className.endsWith("SynchronizedSet")) { //$NON-NLS-1$
+            // Collections.synchronizedSet(Set);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSet", new Object[] { new HashSet( //$NON-NLS-1$
+                            (Set) oldInstance) });
+        } else if (className.endsWith("SynchronizedSortedSet")) { //$NON-NLS-1$
+            // Collections.synchronizedSortedSet(SortedSet);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSortedSet", new Object[] { new TreeSet( //$NON-NLS-1$
+                            (SortedSet) oldInstance) });
+        } else if (className.endsWith("SynchronizedMap")) { //$NON-NLS-1$
+            // Collections.synchronizedMap(Map);
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedMap", new Object[] { new HashMap( //$NON-NLS-1$
+                            (Map) oldInstance) });
+        } else if (className.endsWith("SynchronizedSortedMap")) { //$NON-NLS-1$
+            // Collections.synchronizedSortedMap(SortedMap)
+            return new Expression(oldInstance, Collections.class,
+                    "synchronizedSortedMap", new Object[] { new TreeMap( //$NON-NLS-1$
+                            (SortedMap) oldInstance) });
+        } else if (className.endsWith("CheckedCollection")) { //$NON-NLS-1$
+            // Collections.checkedCollection(Collection, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedCollection", new Object[] { //$NON-NLS-1$
+                    new ArrayList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedList")) { //$NON-NLS-1$
+            // Collections.checkedList(List, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedList", new Object[] {
+                            new LinkedList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedRandomAccessList")) { //$NON-NLS-1$
+            // Collections.checkedList(List, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedList", new Object[] { //$NON-NLS-1$
+                    new ArrayList((Collection) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedSet")) { //$NON-NLS-1$
+            // Collections.checkedSet(Set, Class);
+            return new Expression(oldInstance, Collections.class, "checkedSet", //$NON-NLS-1$
+                    new Object[] { new HashSet((Set) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedSortedSet")) { //$NON-NLS-1$
+            // Collections.checkedSortedSet(SortedSet, Class);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedSortedSet", new Object[] { //$NON-NLS-1$
+                    new TreeSet((Set) oldInstance),
+                            valueOfField(oldInstance, COLLECTIONS_TYPE) });
+        } else if (className.endsWith("CheckedMap")) { //$NON-NLS-1$
+            // Collections.checkedMap(Map, keyType, valueType);
+            return new Expression(oldInstance, Collections.class, "checkedMap", //$NON-NLS-1$
+                    new Object[] { new HashMap((Map) oldInstance),
+                            valueOfField(oldInstance, MAP_KEY_TYPE),
+                            valueOfField(oldInstance, MAP_VALUE_TYPE) });
+        } else if (className.endsWith("CheckedSortedMap")) { //$NON-NLS-1$
+            // Collections.checkedSortedMap(SortedMap, keyType, valueType);
+            return new Expression(oldInstance, Collections.class,
+                    "checkedSortedMap", new Object[] { //$NON-NLS-1$
+                    new TreeMap((Map) oldInstance),
+                            valueOfField(oldInstance, MAP_KEY_TYPE),
+                            valueOfField(oldInstance, MAP_VALUE_TYPE) });
+        }
+        return null;
+    }
+
+    private static Object valueOfField(Object obj, String fieldName) {
+        Class<?> clazz = obj.getClass();
+        Field field = null;
+        while (clazz != null) {
+            for (Field declaredField : clazz.getDeclaredFields()) {
+                if (fieldName.equals(declaredField.getName())) {
+                    field = declaredField;
+                    break;
+                }
+            }
+            clazz = clazz.getSuperclass();
+        }
+        if (field != null) {
+            if (!field.isAccessible()) {
+                field.setAccessible(true);
+            }
+            try {
+                return field.get(obj);
+            } catch (Exception e) {
+                // Ignored
+            }
+        }
+        return null;
+    }
+}
diff --git a/classlib/modules/beans/src/main/java/java/beans/XMLDecoder.java b/classlib/modules/beans/src/main/java/java/beans/XMLDecoder.java
index 4ccae80..2b2c6bc 100644
--- a/classlib/modules/beans/src/main/java/java/beans/XMLDecoder.java
+++ b/classlib/modules/beans/src/main/java/java/beans/XMLDecoder.java
@@ -111,6 +111,7 @@
             elem.isExpression = true;
             elem.id = attributes.getValue("id");
             elem.idref = attributes.getValue("idref");
+            elem.attributes = attributes;
             if (elem.idref == null) {
                 obtainTarget(elem, attributes);
                 obtainMethod(elem, attributes);
@@ -201,6 +202,7 @@
             Elem elem = new Elem();
             elem.isExpression = true;
             elem.id = attributes.getValue("id"); //$NON-NLS-1$
+            elem.attributes = attributes;
             try {
                 // find component class
                 Class<?> compClass = classForName(attributes.getValue("class")); //$NON-NLS-1$
@@ -230,6 +232,7 @@
         private void startVoidElem(Attributes attributes) {
             Elem elem = new Elem();
             elem.id = attributes.getValue("id");
+            elem.attributes = attributes;
             obtainTarget(elem, attributes);
             obtainMethod(elem, attributes);
             readObjs.push(elem);
@@ -242,6 +245,7 @@
             elem.isExpression = true;
             elem.id = attributes.getValue("id");
             elem.idref = attributes.getValue("idref");
+            elem.attributes = attributes;
             elem.target = tagName;
             readObjs.push(elem);
         }
@@ -258,6 +262,21 @@
             }
             // find the elem to close
             Elem toClose = latestUnclosedElem();
+            if ("string".equals(toClose.target)) {
+                StringBuilder sb = new StringBuilder();
+                for (int index = readObjs.size() - 1; index >= 0; index--) {
+                    Elem elem = (Elem) readObjs.get(index);
+                    if (toClose == elem) {
+                        break;
+                    }
+                    if ("char".equals(elem.target)) {
+                        sb.insert(0, elem.methodName);
+                    }
+                }
+                toClose.methodName = toClose.methodName != null ? toClose.methodName
+                        + sb.toString()
+                        : sb.toString();
+            }
             // make sure it is executed
             execute(toClose);
             // set to closed
@@ -465,6 +484,15 @@
             } else if ("byte".equals(tag)) {
                 return Byte.valueOf(value);
             } else if ("char".equals(tag)) {
+                if (value == null && elem.attributes != null) {
+                    String codeAttr = elem.attributes.getValue("code");
+                    if (codeAttr != null) {
+                        Character character = new Character((char) Integer
+                                .valueOf(codeAttr.substring(1), 16).intValue());
+                        elem.methodName = character.toString();
+                        return character;
+                    }
+                }
                 return Character.valueOf(value.charAt(0));
             } else if ("double".equals(tag)) {
                 return Double.valueOf(value);
@@ -522,6 +550,8 @@
 
         boolean fromOwner;
 
+        Attributes attributes;
+
         Object result;
 
     }
diff --git a/classlib/modules/beans/src/main/java/java/beans/XMLEncoder.java b/classlib/modules/beans/src/main/java/java/beans/XMLEncoder.java
index c17d2bd..9b16ad5 100644
--- a/classlib/modules/beans/src/main/java/java/beans/XMLEncoder.java
+++ b/classlib/modules/beans/src/main/java/java/beans/XMLEncoder.java
@@ -126,7 +126,7 @@
      */
     public void close() {
         flush();
-        out.println("</java>"); //$NON-NLS-1$
+        out.println("</java> "); //$NON-NLS-1$
         out.close();
     }
 
@@ -136,15 +136,6 @@
         return buf;
     }
 
-    private String idSerialNoOfObject(Object obj) {
-        Class<?> clazz = obj.getClass();
-        Integer serialNo = (Integer) clazzCounterMap.get(clazz);
-        serialNo = serialNo == null ? 0 : serialNo;
-        String id = BeansUtils.idOfClass(obj.getClass()) + serialNo;
-        clazzCounterMap.put(clazz, ++serialNo);
-        return id;
-    }
-
     /**
      * Writes out all objects since last flush to the output stream.
      * <p>
@@ -157,10 +148,10 @@
         synchronized (this) {
             // write xml header
             if (!hasXmlHeader) {
-                out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+                out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?> ");
                 out.println("<java version=\""
                         + System.getProperty("java.version")
-                        + "\" class=\"java.beans.XMLDecoder\">");
+                        + "\" class=\"java.beans.XMLDecoder\"> ");
                 hasXmlHeader = true;
             }
 
@@ -201,7 +192,7 @@
         }
         flushIndent(indent);
         if (obj == null) {
-            out.println("<null />");
+            out.println("<null /> ");
         } else if (obj instanceof String) {
             Record rec = objRecordMap.get(obj);
             if (null != rec) {
@@ -211,31 +202,42 @@
             }
             out.print("<string>");
             flushString((String) obj);
-            out.println("</string>");
+            out.println("</string> ");
         } else if (obj instanceof Class<?>) {
-            out.println("<class>" + ((Class<?>) obj).getName() + "</class>");
+            out.println("<class>" + ((Class<?>) obj).getName() + "</class> ");
         } else if (obj instanceof Boolean) {
-            out.println("<boolean>" + obj + "</boolean>");
+            out.println("<boolean>" + obj + "</boolean> ");
         } else if (obj instanceof Byte) {
-            out.println("<byte>" + obj + "</byte>");
+            out.println("<byte>" + obj + "</byte> ");
         } else if (obj instanceof Character) {
-            out.println("<char>" + obj + "</char>");
+            char objChar = ((Character) obj).charValue();
+            if (invalidCharacter(objChar)) {
+                out.println("<char code=\"#" + Integer.toString(objChar, 16)
+                        + "\"/>");
+            } else {
+                out.println("<char>" + objChar + "</char> ");
+            }
         } else if (obj instanceof Double) {
-            out.println("<double>" + obj + "</double>");
+            out.println("<double>" + obj + "</double> ");
         } else if (obj instanceof Float) {
-            out.println("<float>" + obj + "</float>");
+            out.println("<float>" + obj + "</float> ");
         } else if (obj instanceof Integer) {
-            out.println("<int>" + obj + "</int>");
+            out.println("<int>" + obj + "</int> ");
         } else if (obj instanceof Long) {
-            out.println("<long>" + obj + "</long>");
+            out.println("<long>" + obj + "</long> ");
         } else if (obj instanceof Short) {
-            out.println("<short>" + obj + "</short>");
+            out.println("<short>" + obj + "</short> ");
         } else {
             getExceptionListener().exceptionThrown(
                     new Exception(Messages.getString("beans.73", obj)));
         }
     }
 
+    private boolean invalidCharacter(char c) {
+        return ((0x0000 <= c && c < 0x0009) || (0x000a < c && c < 0x000d)
+                || (0x000d < c && c < 0x0020) || (0xd7ff < c && c < 0xe000) || c == 0xfffe);
+    }
+
     @SuppressWarnings("nls")
     private void flushExpression(Object obj, Record rec, int indent,
             boolean asStatement) {
@@ -253,7 +255,7 @@
             flushIndent(indent);
             out.print("<object idref=\"");
             out.print(rec.id);
-            out.println("\" />");
+            out.println("\"/> ");
             return;
         }
 
@@ -313,10 +315,10 @@
 
         // open tag, end
         if (rec.exp.getArguments().length == 0 && rec.stats.isEmpty()) {
-            out.println("/>");
+            out.println("/> ");
             return;
         }
-        out.println(">");
+        out.println("> ");
 
         // arguments
         for (int i = 0; i < rec.exp.getArguments().length; i++) {
@@ -330,7 +332,7 @@
         flushIndent(indent);
         out.print("</");
         out.print(tagName);
-        out.println(">");
+        out.println("> ");
     }
 
     @SuppressWarnings("nls")
@@ -356,17 +358,17 @@
 
         // open tag, end
         if (subStats.isEmpty()) {
-            out.println("/>");
+            out.println("/> ");
             return;
         }
-        out.println(">");
+        out.println("> ");
 
         // sub statements
         flushSubStatements(subStats, indent);
 
         // close tag
         flushIndent(indent);
-        out.println("</array>");
+        out.println("</array> ");
     }
 
     @SuppressWarnings("nls")
@@ -401,10 +403,10 @@
 
         // open tag, end
         if (stat.getArguments().length == 0 && subStats.isEmpty()) {
-            out.println("/>");
+            out.println("/> ");
             return;
         }
-        out.println(">");
+        out.println("> ");
 
         // arguments
         for (int i = 0; i < stat.getArguments().length; i++) {
@@ -418,7 +420,7 @@
         flushIndent(indent);
         out.print("</");
         out.print(tagName);
-        out.println(">");
+        out.println("> ");
     }
 
     @SuppressWarnings("nls")
@@ -484,15 +486,15 @@
             out.print(" field=\"");
             out.print(stat.getArguments()[0]);
             out.print("\"");
-            out.println("/>");
+            out.println("/> ");
         } else {
             out.print(" method=\"");
             out.print(stat.getMethodName());
             out.print("\"");
-            out.println(">");
+            out.println("> ");
             flushObject(stat.getArguments()[0], indent + INDENT_UNIT);
             flushIndent(indent);
-            out.println("</object>");
+            out.println("</object> ");
         }
     }
 
@@ -501,7 +503,7 @@
             List<?> subStats, int indent) {
         // open tag, begin
         flushIndent(indent);
-        String tagName = stat instanceof Expression ? "object" : "void";
+        String tagName = "void";
         out.print("<");
         out.print(tagName);
 
@@ -526,10 +528,10 @@
 
         // open tag, end
         if (stat.getArguments().length == 0 && subStats.isEmpty()) {
-            out.println("/>");
+            out.println("/> ");
             return;
         }
-        out.println(">");
+        out.println("> ");
 
         // arguments
         for (int i = 0; i < stat.getArguments().length; i++) {
@@ -543,7 +545,7 @@
         flushIndent(indent);
         out.print("</");
         out.print(tagName);
-        out.println(">");
+        out.println("> ");
     }
 
     @SuppressWarnings("nls")
@@ -576,10 +578,10 @@
 
         // open tag, end
         if (stat.getArguments().length == 1 && subStats.isEmpty()) {
-            out.println("/>");
+            out.println("/> ");
             return;
         }
-        out.println(">");
+        out.println("> ");
 
         // arguments
         for (int i = 1; i < stat.getArguments().length; i++) {
@@ -593,7 +595,7 @@
         flushIndent(indent);
         out.print("</");
         out.print(tagName);
-        out.println(">");
+        out.println("> ");
     }
 
     @SuppressWarnings("nls")
@@ -612,7 +614,12 @@
             } else if (c == '"') {
                 out.print("&quot;");
             } else {
-                out.print(c);
+                if (invalidCharacter(c)) {
+                    out.print("<char code=\"#" + Integer.toString(c, 16)
+                            + "\"/>");
+                } else {
+                    out.print(c);
+                }
             }
         }
     }
@@ -673,6 +680,15 @@
         return (method.startsWith(BeansUtils.SET) && method.length() > 3 && args.length == 1);
     }
 
+    private String idSerialNoOfObject(Object obj) {
+        Class<?> clazz = obj.getClass();
+        Integer serialNo = (Integer) clazzCounterMap.get(clazz);
+        serialNo = serialNo == null ? 0 : serialNo;
+        String id = BeansUtils.idOfClass(obj.getClass()) + serialNo;
+        clazzCounterMap.put(clazz, ++serialNo);
+        return id;
+    }
+
     /*
      * The preprocess removes unused statements and counts references of every
      * object
@@ -783,17 +799,48 @@
             return;
         }
         // deal with 'owner' property
-        if (stat.getTarget() == owner && owner != null) {
+        Object target = stat.getTarget();
+        if (target == owner && owner != null) {
             needOwner = true;
         }
 
         // record how a statement affects the target object
-        Record rec = objRecordMap.get(stat.getTarget());
+        Record rec = objRecordMap.get(target);
         if (rec == null) {
             rec = new Record();
-            objRecordMap.put(stat.getTarget(), rec);
+            objRecordMap.put(target, rec);
         }
-        rec.stats.add(stat);
+
+        boolean hasRecord = false;
+        String methodName = stat.getMethodName();
+        Object[] args = stat.getArguments();
+        if (isSetPropertyStat(methodName, args)
+                || isSetArrayStat(target, methodName, args)) {
+            for (Statement subStat : rec.stats) {
+                if (target == subStat.getTarget()
+                        && methodName.equals(subStat.getMethodName())) {
+                    Object[] subArgs = subStat.getArguments();
+                    if (args.length == subArgs.length) {
+                        boolean equals = true;
+                        for (int index = 0; index < args.length; index++) {
+                            if (getPersistenceDelegate(args[index].getClass())
+                                    .mutatesTo(args[index], subArgs[index])) {
+                                continue;
+                            }
+                            equals = false;
+                            break;
+                        }
+                        if (equals) {
+                            hasRecord = true;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        if (!hasRecord) {
+            rec.stats.add(stat);
+        }
     }
 
     /**
diff --git a/classlib/modules/beans/src/test/java/org/apache/harmony/beans/tests/java/beans/XMLEncoderTest.java b/classlib/modules/beans/src/test/java/org/apache/harmony/beans/tests/java/beans/XMLEncoderTest.java
index f772c49..98932fe 100644
--- a/classlib/modules/beans/src/test/java/org/apache/harmony/beans/tests/java/beans/XMLEncoderTest.java
+++ b/classlib/modules/beans/src/test/java/org/apache/harmony/beans/tests/java/beans/XMLEncoderTest.java
@@ -25,6 +25,7 @@
 import java.beans.Expression;
 import java.beans.PersistenceDelegate;
 import java.beans.Statement;
+import java.beans.XMLDecoder;
 import java.beans.XMLEncoder;
 import java.io.BufferedReader;
 import java.io.ByteArrayInputStream;
@@ -35,10 +36,23 @@
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.io.StringReader;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.ListIterator;
 import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.SortedSet;
 import java.util.TreeMap;
+import java.util.TreeSet;
 
 import junit.framework.TestCase;
 
@@ -1022,4 +1036,883 @@
             this.name = name;
         }
     }
+
+    public static class MockCharProperty {
+        private char property;
+
+        public char getProperty() {
+            return property;
+        }
+
+        public void setProperty(char property) {
+            this.property = property;
+        }
+
+        public boolean equals(Object obj) {
+            if (obj instanceof MockCharProperty) {
+                return ((MockCharProperty) obj).property == (this.property);
+            }
+            return false;
+        }
+    }
+
+    public void testMockCharProperty() {
+        MockCharProperty expectedObj = new MockCharProperty();
+        MockCharProperty actualObj;
+        ByteArrayOutputStream baos;
+        ByteArrayInputStream bais;
+        XMLEncoder xmlEncoder;
+        XMLDecoder xmlDecoder;
+        char ch;
+        for (int index = 1; index < 65536; index++) {
+            ch = (char) index;
+            if (invalidCharacter(ch)) {
+                expectedObj.setProperty(ch);
+                baos = new ByteArrayOutputStream();
+                xmlEncoder = new XMLEncoder(baos);
+                xmlEncoder.writeObject(expectedObj);
+                xmlEncoder.close();
+                assertTrue(baos.toString().contains("<char code=\"#"));
+
+                bais = new ByteArrayInputStream(baos.toByteArray());
+                xmlDecoder = new XMLDecoder(bais);
+                actualObj = (MockCharProperty) xmlDecoder.readObject();
+                xmlDecoder.close();
+                assertEquals(expectedObj, actualObj);
+            }
+        }
+    }
+
+    public static class MockStringProperty {
+        private String property;
+
+        public String getProperty() {
+            return property;
+        }
+
+        public void setProperty(String property) {
+            this.property = property;
+        }
+
+        public boolean equals(Object obj) {
+            if (obj instanceof MockStringProperty) {
+                return ((MockStringProperty) obj).property
+                        .equals(this.property);
+            }
+            return false;
+        }
+    }
+
+    public void testMockStringProperty() {
+        MockStringProperty expectedObj = new MockStringProperty();
+        MockStringProperty actualObj;
+        ByteArrayOutputStream baos;
+        ByteArrayInputStream bais;
+        XMLEncoder xmlEncoder;
+        XMLDecoder xmlDecoder;
+        char ch;
+        for (int index = 0; index < 65536; index++) {
+            ch = (char) index;
+            if (invalidCharacter(ch)) {
+                expectedObj.setProperty(stringWithChar(ch));
+                baos = new ByteArrayOutputStream();
+                xmlEncoder = new XMLEncoder(baos);
+                xmlEncoder.writeObject(expectedObj);
+                xmlEncoder.close();
+                assertTrue(baos.toString().contains("<char code=\"#"));
+
+                bais = new ByteArrayInputStream(baos.toByteArray());
+                xmlDecoder = new XMLDecoder(bais);
+                actualObj = (MockStringProperty) xmlDecoder.readObject();
+                xmlDecoder.close();
+                assertEquals(expectedObj, actualObj);
+            }
+        }
+    }
+
+    private String stringWithChar(char character) {
+        return "a string with a " + character + " character";
+    }
+
+    private boolean invalidCharacter(char c) {
+        return ((0x0000 <= c && c < 0x0009) || (0x000a < c && c < 0x000d)
+                || (0x000d < c && c < 0x0020) || (0xd7ff < c && c < 0xe000) || c == 0xfffe);
+    }
+
+    public static class MockUnmodifiableCollection {
+
+        private Collection<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.unmodifiableCollection(property);
+        }
+
+        public void setProperty(Collection<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableCollection() throws Exception {
+        MockUnmodifiableCollection mockCollections = new MockUnmodifiableCollection();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableCollection",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableCollection.xml");
+    }
+
+    public static class MockUnmodifiableList {
+
+        private List<String> property = new LinkedList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.unmodifiableList(property);
+        }
+
+        public void setProperty(Collection<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableList() throws Exception {
+        MockUnmodifiableList mockCollections = new MockUnmodifiableList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableList.xml");
+    }
+
+    public static class MockUnmodifiableRandomAccessList {
+
+        private List<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.unmodifiableList(property);
+        }
+
+        public void setProperty(Collection<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableRandomAccessList()
+            throws Exception {
+        MockUnmodifiableRandomAccessList mockCollections = new MockUnmodifiableRandomAccessList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableRandomAccessList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections,
+                "/xml/MockUnmodifiableRandomAccessList.xml");
+    }
+
+    public static class MockUnmodifiableSet {
+
+        private Set<String> property = new HashSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.unmodifiableSet(property);
+        }
+
+        public void setProperty(Collection<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableSet() throws Exception {
+        MockUnmodifiableSet mockCollections = new MockUnmodifiableSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Set<String> prop = new HashSet<String>();
+        prop.add("A");
+        prop.add("B");
+        prop.add("C");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableSet.xml");
+    }
+
+    public static class MockUnmodifiableSortedSet {
+
+        private SortedSet<String> property = new TreeSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.unmodifiableSortedSet(property);
+        }
+
+        public void setProperty(Collection<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableSortedSet() throws Exception {
+        MockUnmodifiableSortedSet mockCollections = new MockUnmodifiableSortedSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableSortedSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Set<String> prop = new HashSet<String>();
+        prop.add("A");
+        prop.add("B");
+        prop.add("C");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableSortedSet.xml");
+    }
+
+    public static class MockUnmodifiableMap {
+
+        private Map<String, String> property = new HashMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.unmodifiableMap(property);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableMap() throws Exception {
+        MockUnmodifiableMap mockCollections = new MockUnmodifiableMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableMap.xml");
+    }
+
+    public static class MockUnmodifiableSortedMap {
+
+        private SortedMap<String, String> property = new TreeMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.unmodifiableSortedMap(property);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockUnmodifiableSortedMap() throws Exception {
+        MockUnmodifiableSortedMap mockCollections = new MockUnmodifiableSortedMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$UnmodifiableSortedMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockUnmodifiableSortedMap.xml");
+    }
+
+    public static class MockSynchronizedCollection {
+
+        private Collection<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.synchronizedCollection(property);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedCollection() throws Exception {
+        MockSynchronizedCollection mockCollections = new MockSynchronizedCollection();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedCollection",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedCollection.xml");
+    }
+
+    public static class MockSynchronizedList {
+
+        private List<String> property = new LinkedList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.synchronizedList(property);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedList() throws Exception {
+        MockSynchronizedList mockCollections = new MockSynchronizedList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedList.xml");
+    }
+
+    public static class MockSynchronizedRandomAccessList {
+
+        private List<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.synchronizedList(property);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedRandomAccessList()
+            throws Exception {
+        MockSynchronizedRandomAccessList mockCollections = new MockSynchronizedRandomAccessList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedRandomAccessList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections,
+                "/xml/MockSynchronizedRandomAccessList.xml");
+    }
+
+    public static class MockSynchronizedSet {
+
+        private Set<String> property = new HashSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.synchronizedSet(property);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedSet() throws Exception {
+        MockSynchronizedSet mockCollections = new MockSynchronizedSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedSet.xml");
+    }
+
+    public static class MockSynchronizedSortedSet {
+
+        private SortedSet<String> property = new TreeSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.synchronizedSortedSet(property);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedSortedSet() throws Exception {
+        MockSynchronizedSortedSet mockCollections = new MockSynchronizedSortedSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedSortedSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedSortedSet.xml");
+    }
+
+    public static class MockSynchronizedMap {
+
+        private Map<String, String> property = new HashMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.synchronizedMap(property);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedMap() throws Exception {
+        MockSynchronizedMap mockCollections = new MockSynchronizedMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedMap.xml");
+    }
+
+    public static class MockSynchronizedSortedMap {
+
+        private SortedMap<String, String> property = new TreeMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.synchronizedSortedMap(property);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockSynchronizedSortedMap() throws Exception {
+        MockSynchronizedSortedMap mockCollections = new MockSynchronizedSortedMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$SynchronizedSortedMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockSynchronizedSortedMap.xml");
+    }
+
+    public static class MockCheckedCollection {
+
+        private Collection<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.checkedCollection(property, String.class);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedCollection() throws Exception {
+        MockCheckedCollection mockCollections = new MockCheckedCollection();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedCollection",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockCheckedCollection.xml");
+    }
+
+    public static class MockCheckedList {
+
+        private List<String> property = new LinkedList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.checkedList(property, String.class);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedList() throws Exception {
+        MockCheckedList mockCollections = new MockCheckedList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockCheckedList.xml");
+    }
+
+    public static class MockCheckedRandomAccessList {
+
+        private List<String> property = new ArrayList<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.checkedList(property, String.class);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedRandomAccessList() throws Exception {
+        MockCheckedRandomAccessList mockCollections = new MockCheckedRandomAccessList();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedRandomAccessList",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockCheckedRandomAccessList.xml");
+    }
+
+    public static class MockCheckedSet {
+
+        private Set<String> property = new HashSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.checkedSet(property, String.class);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedSet() throws Exception {
+        MockCheckedSet mockCollections = new MockCheckedSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockCheckedSet.xml");
+    }
+
+    public static class MockCheckedSortedSet {
+
+        private SortedSet<String> property = new TreeSet<String>();
+
+        public Collection<String> getProperty() {
+            return Collections.checkedSortedSet(property, String.class);
+        }
+
+        public void setProperty(Collection<String> prop) {
+            property.clear();
+            property.addAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedSortedSet() throws Exception {
+        MockCheckedSortedSet mockCollections = new MockCheckedSortedSet();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedSortedSet",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        mockCollections.setProperty(Arrays
+                .asList(new String[] { "A", "B", "C" }));
+        assertCodedXML(mockCollections, "/xml/MockCheckedSortedSet.xml");
+    }
+
+    public static class MockCheckedMap {
+
+        private Map<String, String> property = new HashMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.checkedMap(property, String.class, String.class);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedMap() throws Exception {
+        MockCheckedMap mockCollections = new MockCheckedMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockCheckedMap.xml");
+    }
+
+    public static class MockCheckedSortedMap {
+
+        private SortedMap<String, String> property = new TreeMap<String, String>();
+
+        public Map<String, String> getProperty() {
+            return Collections.checkedSortedMap(property, String.class,
+                    String.class);
+        }
+
+        public void setProperty(Map<String, String> prop) {
+            property.clear();
+            property.putAll(prop);
+        }
+    }
+
+    public void testWriteObject_MockCheckedSortedMap() throws Exception {
+        MockCheckedSortedMap mockCollections = new MockCheckedSortedMap();
+        Class<?> propertyClass = mockCollections.getProperty().getClass();
+        assertEquals("java.util.Collections$CheckedSortedMap",
+                propertyClass.getName());
+        assertSamePD(propertyClass);
+        Map<String, String> prop = new HashMap<String, String>();
+        prop.put("A", "a");
+        prop.put("B", "b");
+        prop.put("C", "c");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockCheckedSortedMap.xml");
+    }
+
+    public static class MockGetPropertyClass {
+
+        private Set<String> property = new HashSet<String>();
+
+        public Set<String> getProperty() {
+            return new HashSet<String>(property);
+        }
+
+        public void setProperty(Set<String> set) {
+            property.clear();
+            property.addAll(set);
+        }
+    }
+
+    public void testWriteObject_MockGetPropertyClass() throws Exception {
+        MockGetPropertyClass mockCollections = new MockGetPropertyClass();
+        assertSamePD(mockCollections.getProperty().getClass());
+        Set<String> prop = new HashSet<String>();
+        prop.add("A");
+        prop.add("B");
+        prop.add("C");
+        mockCollections.setProperty(prop);
+        assertCodedXML(mockCollections, "/xml/MockGetPropertyClass.xml");
+    }
+
+    public static class MockListImplements implements List<String> {
+
+        private List<String> property = new ArrayList<String>();
+
+        public List<String> getProperty() {
+            return property;
+        }
+
+        public void setProperty(List<String> prop) {
+            property = prop;
+        }
+
+        public boolean add(String o) {
+            return property.add(o);
+        }
+
+        public void add(int index, String o) {
+            property.add(index, o);
+        }
+
+        public boolean addAll(Collection<? extends String> c) {
+            return property.addAll(c);
+        }
+
+        public boolean addAll(int index, Collection<? extends String> c) {
+            return property.addAll(index, c);
+        }
+
+        public void clear() {
+            property.clear();
+        }
+
+        public boolean contains(Object o) {
+            return property.contains(o);
+        }
+
+        public boolean containsAll(Collection<?> c) {
+            return property.containsAll(c);
+        }
+
+        public String get(int index) {
+            return property.get(index);
+        }
+
+        public int indexOf(Object o) {
+            return property.indexOf(o);
+        }
+
+        public boolean isEmpty() {
+            return property.isEmpty();
+        }
+
+        public Iterator<String> iterator() {
+            return property.iterator();
+        }
+
+        public int lastIndexOf(Object o) {
+            return property.lastIndexOf(o);
+        }
+
+        public ListIterator<String> listIterator() {
+            return property.listIterator();
+        }
+
+        public ListIterator<String> listIterator(int index) {
+            return property.listIterator(index);
+        }
+
+        public boolean remove(Object o) {
+            return property.remove(o);
+        }
+
+        public String remove(int index) {
+            return property.remove(index);
+        }
+
+        public boolean removeAll(Collection<?> c) {
+            return property.removeAll(c);
+        }
+
+        public boolean retainAll(Collection<?> c) {
+            return property.retainAll(c);
+        }
+
+        public String set(int index, String o) {
+            return property.set(index, o);
+        }
+
+        public int size() {
+            return property.size();
+        }
+
+        public List<String> subList(int fromIndex, int toIndex) {
+            return property.subList(fromIndex, toIndex);
+        }
+
+        public Object[] toArray() {
+            return property.toArray();
+        }
+
+        public <T> T[] toArray(T[] a) {
+            return property.toArray(a);
+        }
+    }
+
+    public void testWriteObject_MockListImplements() throws Exception {
+        List<String> mockListImplements = new MockListImplements();
+        mockListImplements.add("A");
+        assertCodedXML(mockListImplements, "/xml/MockListImplements.xml");
+    }
+
+    public static class MockSetImplements implements Set<String> {
+
+        private Set<String> property;
+
+        public MockSetImplements() {
+            property = new HashSet<String>();
+        }
+
+        public Set<String> getProperty() {
+            return property;
+        }
+
+        public void setProperty(Set<String> prop) {
+            property = prop;
+        }
+
+        public boolean add(String o) {
+            return property.add(o);
+        }
+
+        public void clear() {
+            property.clear();
+        }
+
+        public boolean contains(final Object o) {
+            return property.contains(o);
+        }
+
+        public boolean containsAll(final Collection<?> c) {
+            return property.containsAll(c);
+        }
+
+        public boolean isEmpty() {
+            return property.isEmpty();
+        }
+
+        public Iterator<String> iterator() {
+            return property.iterator();
+        }
+
+        public boolean remove(final Object o) {
+            return property.remove(o);
+        }
+
+        public boolean removeAll(final Collection<?> c) {
+            return property.removeAll(c);
+        }
+
+        public boolean retainAll(final Collection<?> c) {
+            return property.retainAll(c);
+        }
+
+        public int size() {
+            return property.size();
+        }
+
+        public Object[] toArray() {
+            return property.toArray();
+        }
+
+        public <T> T[] toArray(final T[] a) {
+            return property.toArray(a);
+        }
+
+        public int hashCode() {
+            return property.hashCode();
+        }
+
+        public boolean addAll(Collection<? extends String> c) {
+            return property.addAll(c);
+        }
+    }
+
+    public void testWriteObject_MockSetImplements() throws Exception {
+        Set<String> mockSetImplements = new MockSetImplements();
+        mockSetImplements.add("A");
+        assertCodedXML(mockSetImplements, "/xml/MockSetImplements.xml");
+    }
+
+    private Encoder encoder = new Encoder();
+
+    private void assertSamePD(Class<?> clazz) {
+        assertSame(encoder.getPersistenceDelegate(clazz),
+                encoder.getPersistenceDelegate(clazz));
+    }
+
 }
\ No newline at end of file
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedCollection.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedCollection.xml
new file mode 100644
index 0000000..3abf592
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedCollection.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedCollection"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedList.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedList.xml
new file mode 100644
index 0000000..98f3486
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedList.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedList"> 
+    <object class="java.util.LinkedList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedMap.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedMap.xml
new file mode 100644
index 0000000..31e4623
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedMap.xml
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedMap"> 
+    <object class="java.util.HashMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java>
\ No newline at end of file
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedRandomAccessList.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedRandomAccessList.xml
new file mode 100644
index 0000000..5daae2a
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedRandomAccessList.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedList"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedSet.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedSet.xml
new file mode 100644
index 0000000..af0743c
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedSet.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedSet"> 
+    <object class="java.util.HashSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedMap.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedMap.xml
new file mode 100644
index 0000000..5179966
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedMap.xml
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedSortedMap"> 
+    <object class="java.util.TreeMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java>
\ No newline at end of file
diff --git a/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedSet.xml b/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedSet.xml
new file mode 100644
index 0000000..43bf2f7
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockCheckedSortedSet.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="checkedSortedSet"> 
+    <object class="java.util.TreeSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+    <class>java.lang.String</class> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockGetPropertyClass.xml b/classlib/modules/beans/src/test/resources/xml/MockGetPropertyClass.xml
new file mode 100644
index 0000000..7b8e8cc
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockGetPropertyClass.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void id="HashSet0" property="property"> 
+   <void method="add"> 
+    <string>A</string> 
+   </void> 
+   <void method="add"> 
+    <string>B</string> 
+   </void> 
+   <void method="add"> 
+    <string>C</string> 
+   </void> 
+  </void> 
+  <void property="property"> 
+   <object idref="HashSet0"/> 
+  </void> 
+ </object> 
+</java> 
\ No newline at end of file
diff --git a/classlib/modules/beans/src/test/resources/xml/MockListImplements.xml b/classlib/modules/beans/src/test/resources/xml/MockListImplements.xml
new file mode 100644
index 0000000..76190bc
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockListImplements.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <void method="add"> 
+    <string>A</string> 
+   </void> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSetImplements.xml b/classlib/modules/beans/src/test/resources/xml/MockSetImplements.xml
new file mode 100644
index 0000000..1b9c56a
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSetImplements.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder">
+ <object class="${classname}">
+  <void property="property">
+   <void method="add">
+    <string>A</string>
+   </void>
+  </void>
+ </object>
+</java>
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedCollection.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedCollection.xml
new file mode 100644
index 0000000..2cdc336
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedCollection.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedCollection"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedList.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedList.xml
new file mode 100644
index 0000000..33bdcea
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedList.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedList"> 
+    <object class="java.util.LinkedList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedMap.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedMap.xml
new file mode 100644
index 0000000..0efc0b4
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedMap.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedMap"> 
+    <object class="java.util.HashMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedRandomAccessList.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedRandomAccessList.xml
new file mode 100644
index 0000000..9cb22a4
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedRandomAccessList.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedList"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSet.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSet.xml
new file mode 100644
index 0000000..6426f6c
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSet.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedSet"> 
+    <object class="java.util.HashSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedMap.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedMap.xml
new file mode 100644
index 0000000..b34e9d2
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedMap.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedSortedMap"> 
+    <object class="java.util.TreeMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedSet.xml b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedSet.xml
new file mode 100644
index 0000000..4b50148
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockSynchronizedSortedSet.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="synchronizedSortedSet"> 
+    <object class="java.util.TreeSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableCollection.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableCollection.xml
new file mode 100644
index 0000000..43227a5
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableCollection.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableCollection"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableList.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableList.xml
new file mode 100644
index 0000000..9f3d212
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableList.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableList"> 
+    <object class="java.util.LinkedList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableMap.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableMap.xml
new file mode 100644
index 0000000..d5bd832
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableMap.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableMap"> 
+    <object class="java.util.HashMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableRandomAccessList.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableRandomAccessList.xml
new file mode 100644
index 0000000..41cb2f9
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableRandomAccessList.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableList"> 
+    <object class="java.util.ArrayList"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSet.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSet.xml
new file mode 100644
index 0000000..91ba582
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSet.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableSet"> 
+    <object class="java.util.HashSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedMap.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedMap.xml
new file mode 100644
index 0000000..143fcb2
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedMap.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableSortedMap"> 
+    <object class="java.util.TreeMap"> 
+     <void method="put"> 
+      <string>A</string> 
+      <string>a</string> 
+     </void> 
+     <void method="put"> 
+      <string>B</string> 
+      <string>b</string> 
+     </void> 
+     <void method="put"> 
+      <string>C</string> 
+      <string>c</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+
diff --git a/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedSet.xml b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedSet.xml
new file mode 100644
index 0000000..c63bce2
--- /dev/null
+++ b/classlib/modules/beans/src/test/resources/xml/MockUnmodifiableSortedSet.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?> 
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<java version="${version}" class="java.beans.XMLDecoder"> 
+ <object class="${classname}"> 
+  <void property="property"> 
+   <object class="java.util.Collections" method="unmodifiableSortedSet"> 
+    <object class="java.util.TreeSet"> 
+     <void method="add"> 
+      <string>A</string> 
+     </void> 
+     <void method="add"> 
+      <string>B</string> 
+     </void> 
+     <void method="add"> 
+      <string>C</string> 
+     </void> 
+    </object> 
+   </object> 
+  </void> 
+ </object> 
+</java> 
+