support android mXXX fieldName. for issue 443. #443

src/main/java/com/alibaba/fastjson/util/TypeUtils.java

@@ -1441,9 +1441,16 @@ public static Field getField(Class<?> clazz, String fieldName, Field[] declaredF
         if (field == null) {
             field = getField0(clazz, "_" + fieldName, declaredFields);
         }
+
         if (field == null) {
             field = getField0(clazz, "m_" + fieldName, declaredFields);
         }
+
+        if (field == null) {
+            String mName = "m" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
+            field = getField0(clazz, mName, declaredFields);
+        }
+
         return field;
     }
 

src/test/java/com/alibaba/json/bvt/android/MFieldTest.java

@@ -0,0 +1,38 @@
+package com.alibaba.json.bvt.android;
+
+import org.junit.Assert;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.annotation.JSONField;
+
+import junit.framework.TestCase;
+
+public class MFieldTest extends TestCase {
+
+    public void test_mfield() throws Exception {
+        VO vo = new VO();
+        vo.setName("xxx");
+
+        String text = JSON.toJSONString(vo);
+
+        Assert.assertEquals("{\"new_message\":\"xxx\"}", text);
+
+        VO vo1 = JSON.parseObject(text, VO.class);
+        Assert.assertEquals(vo.mName, vo1.mName);
+    }
+
+    public static class VO {
+
+        @JSONField(name = "new_message")
+        private String mName;
+
+        public String getName() {
+            return mName;
+        }
+
+        public void setName(String name) {
+            this.mName = name;
+        }
+
+    }
+}