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diff --git a/support/general/src/test/java/org/wamblee/reflection/ObjectTraversalTest.java b/support/general/src/test/java/org/wamblee/reflection/ObjectTraversalTest.java
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+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * Licensed 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 org.wamblee.reflection;
+
+import static org.mockito.Matchers.*;
+import static org.mockito.Mockito.*;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.derby.impl.sql.execute.OnceResultSet;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.wamblee.reflection.ObjectTraversal.ObjectVisitor;
+
+import static junit.framework.TestCase.*;
+
+public class ObjectTraversalTest {
+
+    @Mock
+    private ObjectVisitor visitor;
+
+    private ObjectTraversal traversal;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        traversal = new ObjectTraversal(visitor);
+
+        when(visitor.mustVisit(any(Class.class))).thenReturn(true);
+        when(visitor.mustVisit(any(Field.class))).thenReturn(true);
+        when(visitor.mustVisit(any(Method.class))).thenReturn(true);
+        
+        when(visitor.visitPlainObject(any())).thenReturn(true);
+        when(visitor.visitArray(any())).thenReturn(true);
+        when(visitor.visitList(any(List.class))).thenReturn(true);
+        when(visitor.visitMap(any(Map.class))).thenReturn(true);
+        when(visitor.visitSet(any(Set.class))).thenReturn(true);
+        
+    }
+    
+    public static class X1 { 
+        
+    }
+
+    public static class X2 { 
+        private X1 x; 
+    }
+  
+    
+    @Test
+    public void testTraverseFields() throws Exception {
+        X2 x2 = new X2();
+        X1 x1 = new X1(); 
+        x2.x = x1;
+        traversal.accept(x2);
+        verify(visitor).mustVisit(X2.class);
+        verify(visitor).mustVisit(X1.class);
+        verify(visitor).mustVisit(eq(X2.class.getDeclaredField("x")));
+        verify(visitor).visitPlainObject(same(x2));
+        verify(visitor).visitPlainObject(same(x1));
+        verifyNoMoreInteractions(visitor);
+    }
+    
+    public static class TraversalNonTraversedFields {
+        private int x;
+        private Object y = new Object();
+    }
+
+    @Test
+    public void testNonTraversedFields() throws Exception {
+        TraversalNonTraversedFields obj =new TraversalNonTraversedFields();
+        traversal.accept(obj);
+        verify(visitor).mustVisit(TraversalNonTraversedFields.class);
+        verify(visitor).mustVisit(eq(TraversalNonTraversedFields.class.getDeclaredField("x")));
+        verify(visitor).mustVisit(eq(TraversalNonTraversedFields.class.getDeclaredField("y")));
+        verify(visitor).visitPlainObject(same(obj));
+    }
+    
+    public static class X3 { 
+        
+    }
+    
+    public static class X4 { 
+        public X3 getX3() { 
+            return new X3();
+        }
+    }
+    
+
+    @Test
+    public void testTraverseMethods() throws Exception {
+        X4 x4 = new X4();
+        traversal.accept(x4);
+        verify(visitor).mustVisit(X4.class);
+        verify(visitor).mustVisit(X3.class);
+        verify(visitor).mustVisit(eq(X4.class.getDeclaredMethod("getX3")));
+        verify(visitor).visitPlainObject(same(x4));
+        verify(visitor).visitPlainObject(isA(X3.class));
+        verifyNoMoreInteractions(visitor);
+    }
+
+    @Test
+    public void testTraverseList() {
+        List list = new ArrayList(); 
+        list.add(new X1());
+        list.add(new X3());
+        traversal.accept(list);
+        verify(visitor).visitList(same(list));
+        verify(visitor).visitPlainObject(isA(X1.class));
+        verify(visitor).visitPlainObject(isA(X3.class));
+    }
+
+    @Test
+    public void testTraverseMap() {
+        Map<String,Object> map = new HashMap<String,Object>(); 
+        map.put("x1", new X1());
+        map.put("x3", new X3());
+        traversal.accept(map);
+        verify(visitor).visitMap(same(map));
+        verify(visitor).visitPlainObject(isA(X1.class));
+        verify(visitor).visitPlainObject(isA(X3.class));
+    }
+
+    @Test
+    public void testTraverseSet() {
+        Set set = new HashSet(); 
+        set.add(new X1());
+        set.add(new X3());
+        traversal.accept(set);
+        verify(visitor).visitSet(same(set));
+        verify(visitor).visitPlainObject(isA(X1.class));
+        verify(visitor).visitPlainObject(isA(X3.class));
+    }
+
+    @Test
+    public void testTraverseArray() {
+        Object[] obj = new Object[2]; 
+        obj[0] = new X1();
+        obj[1] = new X3();
+        traversal.accept(obj);
+        verify(visitor).visitArray(same(obj));
+        verify(visitor).visitPlainObject(isA(X1.class));
+        verify(visitor).visitPlainObject(isA(X3.class));
+    }
+
+    @Test
+    public void testExcludeClasses() {
+        X2 x2 = new X2(); 
+        x2.x = new X1();
+        when(visitor.mustVisit(X1.class)).thenReturn(false);
+        traversal.accept(x2);
+        verify(visitor).visitPlainObject(same(x2));
+        verify(visitor, never()).visitPlainObject(same(x2.x));
+    }
+
+    @Test
+    public void testExcludeFields() {
+        X2 x2 = new X2(); 
+        x2.x = new X1();
+        when(visitor.mustVisit(any(Field.class))).thenReturn(false);
+        traversal.accept(x2);
+        verify(visitor).visitPlainObject(same(x2));
+        verify(visitor, never()).visitPlainObject(same(x2.x));
+    }
+
+    @Test
+    public void testExcludeMethods() {
+        X4 x4 = new X4(); 
+        when(visitor.mustVisit(any(Method.class))).thenReturn(false);
+        traversal.accept(x4);
+        verify(visitor).visitPlainObject(same(x4));
+        verify(visitor, never()).visitPlainObject(isA(X3.class));
+    }
+    
+    public static class X5 { 
+        private X6 x6;
+    }
+    
+    public static class X6 { 
+        private X5 x5;
+    }
+    
+    @Test
+    public void testCyclic() {
+        X6 x6 = new X6();
+        X5 x5 = new X5(); 
+        x6.x5 = x5;
+        x5.x6 = x6;
+        traversal.accept(x6);
+        verify(visitor).visitPlainObject(same(x6));
+        verify(visitor).visitPlainObject(same(x5));
+    }
+
+    @Test
+    public void testCyclicList() {
+        List list = new ArrayList(); 
+        list.add(list); 
+        traversal.accept(list); 
+        verify(visitor, times(1)).visitList(same(list));
+    }
+
+    @Test
+    public void testCyclicMap() {
+        Map map = new HashMap(); 
+        map.put("x", map); 
+        traversal.accept(map); 
+        verify(visitor, times(1)).visitMap(same(map));
+    }
+
+    @Test
+    public void testCyclicSet() {
+        Set set = new HashSet(); 
+        set.add(set); 
+        traversal.accept(set); 
+        verify(visitor, times(1)).visitSet(same(set));
+    }
+
+    @Test
+    public void testCyclicArray() {
+        Object[] obj = new Object[1]; 
+        obj[0] = obj; 
+        traversal.accept(obj); 
+        verify(visitor, times(1)).visitArray(same(obj));
+    }
+
+    @Test
+    public void testVisitNull() {
+        traversal.accept(null);
+    }
+    
+    @Test
+    public void testExcludeFieldByReturningFalseInVisit() {
+        X2 x2 = new X2(); 
+        x2.x = new X1();
+        when(visitor.visitPlainObject(any())).thenReturn(false);
+        traversal.accept(x2);
+        verify(visitor).visitPlainObject(same(x2));
+        verify(visitor, never()).visitPlainObject(same(x2.x));
+    }
+    
+    @Test
+    public void testTraverseListExcludeElements() {
+        List list = new ArrayList(); 
+        list.add(new X1());
+        list.add(new X3());
+        when(visitor.visitList(any(List.class))).thenReturn(false);
+        traversal.accept(list);
+        verify(visitor).visitList(same(list));
+        verify(visitor, never()).visitPlainObject(any());
+    }
+
+    @Test
+    public void testTraverseMapExcludeElements() {
+        Map<String,Object> map = new HashMap<String,Object>(); 
+        map.put("x1", new X1());
+        map.put("x3", new X3());
+        when(visitor.visitMap(any(Map.class))).thenReturn(false);
+        traversal.accept(map);
+        verify(visitor).visitMap(same(map));
+        verify(visitor, never()).visitPlainObject(any());
+    }
+
+    @Test
+    public void testTraverseSetExcludeElements() {
+        Set set = new HashSet(); 
+        set.add(new X1());
+        set.add(new X3());
+        when(visitor.visitSet(any(Set.class))).thenReturn(false);
+
+        traversal.accept(set);
+        verify(visitor).visitSet(same(set));
+        verify(visitor, never()).visitPlainObject(any());
+    }
+
+    @Test
+    public void testTraverseArrayExcludeElements() {
+        Object[] obj = new Object[2]; 
+        obj[0] = new X1();
+        obj[1] = new X3();
+        when(visitor.visitArray(any())).thenReturn(false);
+
+        traversal.accept(obj);
+        verify(visitor).visitArray(same(obj));
+        verify(visitor, never()).visitPlainObject(any());
+    }
+
+}