support abstract method annotation. issue #744 #911

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

@@ -1162,6 +1162,41 @@ public class TypeUtils {
             }
         }
 
+        Class<?> superClass = clazz.getSuperclass();
+        if (superClass == null) {
+            return null;
+        }
+
+        if (Modifier.isAbstract(superClass.getModifiers())) {
+            Class<?>[] types = method.getParameterTypes();
+
+            for (Method interfaceMethod : superClass.getMethods()) {
+                Class<?>[] interfaceTypes = interfaceMethod.getParameterTypes();
+                if (interfaceTypes.length != types.length) {
+                    continue;
+                }
+                if (!interfaceMethod.getName().equals(method.getName())) {
+                    continue;
+                }
+                boolean match = true;
+                for (int i = 0; i < types.length; ++i) {
+                    if (!interfaceTypes[i].equals(types[i])) {
+                        match = false;
+                        break;
+                    }
+                }
+
+                if (!match) {
+                    continue;
+                }
+
+                JSONField annotation = interfaceMethod.getAnnotation(JSONField.class);
+                if (annotation != null) {
+                    return annotation;
+                }
+            }
+        }
+
         return null;
     }
 

src/test/java/com/alibaba/json/bvt/bug/Issue744.java

@@ -0,0 +1,26 @@
+package com.alibaba.json.bvt.bug;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.annotation.JSONField;
+import junit.framework.TestCase;
+
+import java.util.Date;
+
+/**
+ * Created by wenshao on 2016/11/13.
+ */
+public class Issue744 extends TestCase {
+
+    public static class Model {
+        @JSONField(format="yyyy-MM-dd'T'HH:mm:ss")
+        public Date date;
+    }
+
+    public void test() {
+        String text = "{\"date\":\"9999-09-08T00:00:00\"}";
+        Model model =JSON.parseObject(text, Model.class);
+
+        String text2 = JSON.toJSONString(model);
+        System.out.println(text2);
+    }
+}

src/test/java/com/alibaba/json/bvt/bug/Issue744_1.java

@@ -0,0 +1,37 @@
+package com.alibaba.json.bvt.bug;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.annotation.JSONField;
+import junit.framework.TestCase;
+
+/**
+ * Created by wenshao on 2016/11/13.
+ */
+public class Issue744_1 extends TestCase {
+
+    public void test_for_issue() throws Exception {
+        C c = new C();
+        c.setName("name");
+
+        String json = JSON.toJSONString(c);
+        assertEquals("{}", json);
+    }
+
+    public static abstract class B {
+        @JSONField(serialize = false, deserialize = false)
+        public abstract String getName();
+
+    }
+
+    public static class C extends B {
+        private String name;
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+    }
+}