我正在开发一个Android应用程序,它使用JSON字符串从服务器下载兴趣点。一切都工作正常但是因为我已经开始测试4.2.1,我收到了以下错误:
01-28 15:32:14.167: E/AndroidRuntime(31174): FATAL EXCEPTION: AsyncTask #1
01-28 15:32:14.167: E/AndroidRuntime(31174): java.lang.RuntimeException: An error occured while executing doInBackground()
01-28 15:32:14.167: E/AndroidRuntime(31174): at android.os.AsyncTask$3.done(AsyncTask.java:299)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
01-28 15:32:14.167: E/AndroidRuntime(31174): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
01-28 15:32:14.167: E/AndroidRuntime(31174): at java.lang.Thread.run(Thread.java:856)
01-28 15:32:14.167: E/AndroidRuntime(31174): Caused by: java.lang.StackOverflowError
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:371)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:375)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:380)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.$Gson$Types.resolve($Gson$Types.java:355)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:117)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:72)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.Gson.getAdapter(Gson.java:353)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.<init>(ReflectiveTypeAdapterFactory.java:82)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:81)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:118)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:72)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.Gson.getAdapter(Gson.java:353)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.<init>(ReflectiveTypeAdapterFactory.java:82)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:81)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:118)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:72)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.Gson.getAdapter(Gson.java:353)
01-28 15:32:14.167: E/AndroidRuntime(31174): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.<init>(ReflectiveTypeAdapterFactory.java:
奇怪的是,它在我尝试的其他每个版本上都能正常工作......
以下是我认为崩溃的行:
Gson g = new Gson();
JSONResponse jsonResponse = g.fromJson(serverReply, JSONResponse.class); <---
和我想要创建的课程:
/**
* The JSONResponse from the server
* @author Tom
*
*/
public class JSONResponse {
private String status;
private PointOfInterest result;
/**
* Creates a JSONResponse object
* @param json
* @return
*/
static JSONResponse convertJSONToResponse(String json){
Gson gson = new Gson();
JSONResponse jsonResponse = gson.fromJson(json, JSONResponse.class);
return jsonResponse;
}
/**
* Get Point of Interest
*/
public PointOfInterest getPointofInterest(){
return result;
}
public String getStatus(){
return status;
}
/**
* Get PrivateSection, area we can put our own data
*/
/*
public String getPrivateSection(){
return privateSection;
}
*/
/**
* Creates a JSONResponse object
* @param json
* @return
*/
String convertJSONResponseToJSON(){
Gson gson = new Gson();
return gson.toJson(this);
}
}
请注意我知道我在这里使用的设计模式很糟糕,这个应用程序适用于我在大学学习的移动应用程序课程,所以请放轻松我!
修改 事实证明,将gson降级为1.7.1对我有用。
答案 0 :(得分:14)
答案 1 :(得分:3)
查看此错误报告。 http://code.google.com/p/google-gson/issues/detail?id=440
评论#12:
我相信在API 17中,WeakReference和SoftReference的内部变为自我指涉,这将触发这一点。您是否正在使用Gson序列化WeakReference或SoftReference?如果是,您应该为这些类型编写自己的TypeAdapter。
代码中的某些内容会导致循环引用,并且由于它一直运行到4.2.1(API 17),因此它很可能是Java类之一。它仍然可能是你的代码,但我非常怀疑。