diff --git a/src/main/java/com/alibaba/fastjson/JSONObject.java b/src/main/java/com/alibaba/fastjson/JSONObject.java
index 51db38969..80ddc3f2c 100644
--- a/src/main/java/com/alibaba/fastjson/JSONObject.java
+++ b/src/main/java/com/alibaba/fastjson/JSONObject.java
@@ -42,6 +42,7 @@ import java.util.Map;
 import java.util.Set;
 
 import com.alibaba.fastjson.annotation.JSONField;
+import com.alibaba.fastjson.parser.ParserConfig;
 import com.alibaba.fastjson.util.TypeUtils;
 
 /**
@@ -365,7 +366,7 @@ public class JSONObject extends JSON implements Map<String, Object>, JSONAware,
 
         if (parameterTypes.length == 0) {
             Class<?> returnType = method.getReturnType();
-            if (returnType == Void.class) {
+            if (returnType == void.class) {
                 throw new JSONException("illegal getter");
             }
 
@@ -396,9 +397,10 @@ public class JSONObject extends JSON implements Map<String, Object>, JSONAware,
                 }
             }
             
-            return map.get(name);
+            Object value = map.get(name);
+            return TypeUtils.cast(value, method.getGenericReturnType(), ParserConfig.getGlobalInstance());
         }
 
-        return null;
+        throw new UnsupportedOperationException(method.toGenericString());
     }
 }
diff --git a/src/main/java/com/alibaba/fastjson/parser/deserializer/JavaBeanDeserializer.java b/src/main/java/com/alibaba/fastjson/parser/deserializer/JavaBeanDeserializer.java
index 922807084..b280702c3 100644
--- a/src/main/java/com/alibaba/fastjson/parser/deserializer/JavaBeanDeserializer.java
+++ b/src/main/java/com/alibaba/fastjson/parser/deserializer/JavaBeanDeserializer.java
@@ -1,8 +1,5 @@
 package com.alibaba.fastjson.parser.deserializer;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
 import java.lang.reflect.Proxy;
 import java.lang.reflect.Type;
 import java.util.ArrayList;
@@ -13,7 +10,6 @@ import java.util.Map;
 
 import com.alibaba.fastjson.JSONException;
 import com.alibaba.fastjson.JSONObject;
-import com.alibaba.fastjson.annotation.JSONCreator;
 import com.alibaba.fastjson.parser.DefaultExtJSONParser;
 import com.alibaba.fastjson.parser.DefaultExtJSONParser.ResolveTask;
 import com.alibaba.fastjson.parser.Feature;
diff --git a/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest.java b/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest.java
index abd3b0dd5..4311099e6 100644
--- a/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest.java
+++ b/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest.java
@@ -168,6 +168,11 @@ public class JSONObjectTest extends TestCase {
 
         Assert.assertTrue(json.getJSONObject("obj") == null);
     }
+    
+    public void test_bytes () throws Exception {
+        JSONObject object = new JSONObject();
+        Assert.assertNull(object.getBytes("bytes"));
+    }
 
     public void test_getObject() throws Exception {
         JSONObject json = new JSONObject();
diff --git a/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest3.java b/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest3.java
new file mode 100644
index 000000000..275082cc0
--- /dev/null
+++ b/src/test/java/com/alibaba/json/test/bvt/JSONObjectTest3.java
@@ -0,0 +1,182 @@
+package com.alibaba.json.test.bvt;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONException;
+import com.alibaba.fastjson.annotation.JSONField;
+
+public class JSONObjectTest3 extends TestCase {
+
+    public void test_0() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+        Assert.assertEquals("123", bean.getValue());
+        Assert.assertEquals(false, bean.isBig());
+        Assert.assertEquals(123, bean.getIntValue());
+
+        bean.setBig(true);
+        Assert.assertEquals(true, bean.isBig());
+
+        bean.setID(567);
+        Assert.assertEquals(567, bean.getID());
+
+    }
+
+    public void test_error_0() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.f();
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_1() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.f(1);
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_2() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.get();
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_3() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.is();
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_4() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        Exception error = null;
+        try {
+            bean.f(1, 2);
+        } catch (UnsupportedOperationException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_5() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.getA();
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_6() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.f1(1);
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_7() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.set(1);
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public void test_error_8() throws Exception {
+        String text = "{value:'123',big:false}";
+        Bean bean = JSON.parseObject(text, Bean.class);
+
+        JSONException error = null;
+        try {
+            bean.xx();
+        } catch (JSONException ex) {
+            error = ex;
+        }
+        Assert.assertNotNull(error);
+    }
+
+    public static interface Bean {
+
+        String getValue();
+
+        void setValue(String value);
+
+        boolean isBig();
+
+        @JSONField
+        void setBig(boolean value);
+
+        @JSONField(name = "value")
+        int getIntValue();
+
+        @JSONField(name = "id")
+        void setID(int value);
+
+        @JSONField(name = "id")
+        int getID();
+
+        Object get();
+
+        Object xx();
+
+        void set(int i);
+
+        boolean is();
+
+        void getA();
+
+        void f();
+
+        Object f(int a);
+
+        void f1(int a);
+
+        void f(int a, int b);
+    }
+}