android.net.Uri support.

src/main/java/com/alibaba/fastjson/parser/ParserConfig.java

@@ -208,7 +208,13 @@ public class ParserConfig {
         } else if (Throwable.class.isAssignableFrom(clazz)) {
             deserializer = new ThrowableDeserializer(this, clazz);
         } else {
-            deserializer = new JavaBeanDeserializer(this, clazz, type);
+            String clazzName = clazz.getName();
+
+            if (clazzName.equals("android.net.Uri")) {
+                deserializer = MiscCodec.instance;
+            } else {
+                deserializer = new JavaBeanDeserializer(this, clazz, type);
+            }
         }
 
         putDeserializer(type, deserializer);

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

@@ -762,6 +762,10 @@ public class TypeUtils {
         if (className == null || className.length() == 0) {
             return null;
         }
+
+        if (className.length() >= 256) {
+            throw new JSONException("className too long. " + className);
+        }
         
         Class<?> clazz = mappings.get(className);
 
@@ -795,7 +799,7 @@ public class TypeUtils {
         try {
             ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
 
-            if (contextClassLoader != null) {
+            if (contextClassLoader != null && contextClassLoader != classLoader) {
                 clazz = contextClassLoader.loadClass(className);
 
                 mappings.put(className, clazz);

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

@@ -0,0 +1,24 @@
+package com.alibaba.json.bvt.android;
+
+import android.net.Uri;
+import com.alibaba.fastjson.JSON;
+import junit.framework.TestCase;
+
+/**
+ * Created by wenshao on 23/02/2017.
+ */
+public class UriTest extends TestCase {
+    public void test_android_uri() throws Exception {
+        Uri uri = Uri.parse("https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/bd_logo1_31bdc765.png");
+        String str = JSON.toJSONString(uri);
+
+        assertEquals("\"https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/bd_logo1_31bdc765.png\"", str);
+
+        Uri uri2 = JSON.parseObject(str, Uri.class);
+
+    }
+
+    public static class Model {
+
+    }
+}