fixed for issue alibaba#849(improved TypeRerence Performance) and ali…

…baba#937

src/main/java/com/alibaba/fastjson/TypeReference.java

@@ -24,8 +24,8 @@
  * parameters, such as {@code Class<?>} or {@code List<? extends CharSequence>}.
  */
 public class TypeReference<T> {
-    static ConcurrentMap<Class<?>, ConcurrentMap<Type, ConcurrentMap<Type, Type>>> classTypeCache
-            = new ConcurrentHashMap<Class<?>, ConcurrentMap<Type, ConcurrentMap<Type, Type>>>(16, 0.75f, 1);
+    static ConcurrentMap<Type, Type> classTypeCache
+            = new ConcurrentHashMap<Type, Type>(16, 0.75f, 1);
 
     protected final Type type;
 
@@ -42,7 +42,7 @@ protected TypeReference(){
 
         type = ((ParameterizedType) superClass).getActualTypeArguments()[0];
     }
-    
+
     /**
      * @since 1.2.9
      * @param actualTypeArguments
@@ -54,7 +54,7 @@ protected TypeReference(Type... actualTypeArguments){
         ParameterizedType argType = (ParameterizedType) ((ParameterizedType) superClass).getActualTypeArguments()[0];
         Type rawType = argType.getRawType();
         Type[] argTypes = argType.getActualTypeArguments();
-        
+
         int actualIndex = 0;
         for (int i = 0; i < argTypes.length; ++i) {
             if (argTypes[i] instanceof TypeVariable) {
@@ -65,31 +65,15 @@ protected TypeReference(Type... actualTypeArguments){
             }
         }
 
-        if (actualTypeArguments.length == 1 && argTypes.length == 1) {
-            ConcurrentMap<Type, ConcurrentMap<Type, Type>> classCache = classTypeCache.get(thisClass);
-            if (classCache == null) {
-                classTypeCache.putIfAbsent(thisClass, new ConcurrentHashMap<Type, ConcurrentMap<Type, Type>>(16, 0.75f, 1));
-                classCache = classTypeCache.get(thisClass);
-            }
-
-            ConcurrentMap<Type, Type> typeCached = classCache.get(argType);
-            if (typeCached == null) {
-                classCache.putIfAbsent(argType, new ConcurrentHashMap<Type, Type>(16, 0.75f, 1));
-                typeCached = classCache.get(argType);
-            }
+        Type key = new ParameterizedTypeImpl(argTypes, thisClass, rawType);
+        Type cachedType = classTypeCache.get(key);
+        if (cachedType == null) {
+            classTypeCache.putIfAbsent(key, key);
+            cachedType = classTypeCache.get(key);
+        }
 
-            Type actualTypeArgument = actualTypeArguments[0];
+        type = cachedType;
 
-            Type cachedType = typeCached.get(actualTypeArgument);
-            if (cachedType == null) {
-                typeCached.putIfAbsent(actualTypeArgument, actualTypeArgument);
-                cachedType = typeCached.get(actualTypeArgument);
-            }
-
-            type = cachedType;
-        } else {
-            type = new ParameterizedTypeImpl(argTypes, thisClass, rawType);
-        }
     }
 
     /**

src/test/java/com/alibaba/json/bvt/TypeReferenceTest12.java

@@ -0,0 +1,33 @@
+package com.alibaba.json.bvt;
+
+import com.alibaba.fastjson.TypeReference;
+import junit.framework.TestCase;
+
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+
+/**
+ * Created by wuwen on 2016/12/7.
+ */
+public class TypeReferenceTest12 extends TestCase {
+
+    public void test_same() throws Exception {
+        ParameterizedType type1 = getType(Integer.class);
+        ParameterizedType type2 = getType();
+
+        assertEquals(type1.getRawType(), type2.getRawType());
+        assertSame(type1.getRawType(), type2.getRawType());
+    }
+
+    <T> ParameterizedType getType(Type type) {
+        return (ParameterizedType)new TypeReference<Model<T>>(type) {}.getType();
+    }
+
+    ParameterizedType getType() {
+        return (ParameterizedType)new TypeReference<Model<Integer>>() {}.getType();
+    }
+
+    public static class Model<T> {
+        public T value;
+    }
+}

src/test/java/com/alibaba/json/bvt/bug/Bug_for_issue_937.java

@@ -0,0 +1,54 @@
+package com.alibaba.json.bvt.bug;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.TypeReference;
+import junit.framework.TestCase;
+import org.junit.Assert;
+
+/**
+ * Created by wuwen on 2016/12/7.
+ */
+public class Bug_for_issue_937 extends TestCase {
+
+    public void test_for_issue() throws Exception {
+        String json = "{outPara:{name:\"user\"}}";
+        Out<Info> out = returnOut(json, Info.class);
+        Assert.assertEquals("user", out.getOutPara().getName());
+    }
+
+    public static <T> Out<T> returnOut(String jsonStr, Class<T> c2) {
+        return JSON.parseObject(jsonStr, new TypeReference<Out<T>>(c2) {
+        });
+    }
+
+    public static class Out<T> {
+        private T outPara;
+
+        public void setOutPara(T t) {
+            outPara = t;
+        }
+
+        public T getOutPara() {
+            return outPara;
+        }
+
+        public Out() {
+        }
+
+        public Out(T t) {
+            setOutPara(t);
+        }
+    }
+
+    public static class Info {
+        private String name;
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+    }
+}