The logcat is below. what is wrong?

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> 07-24 10:54:13.529: E/AndroidRuntime(12130): FATAL EXCEPTION: AsyncTask #3
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): java.lang.RuntimeException: An error occured while executing doInBackground()
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at android.os.AsyncTask$3.done(AsyncTask.java:299)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.lang.Thread.run(Thread.java:856)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): Caused by: java.lang.AssertionError: illegal type variable reference
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at org.apache.harmony.luni.lang.reflect.ImplForVariable.resolve(ImplForVariable.java:113)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at org.apache.harmony.luni.lang.reflect.ImplForVariable.getGenericDeclaration(ImplForVariable.java:127)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at org.apache.harmony.luni.lang.reflect.ImplForVariable.hashCode(ImplForVariable.java:46)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.Arrays.hashCode(Arrays.java:1260)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.google.gson.internal.$Gson$Types$ParameterizedTypeImpl.hashCode(SourceFile:475)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.google.gson.reflect.TypeToken.(SourceFile:64)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.gaozhi.wh.asynctask.MyAsyncTask$2$1.(SourceFile:78)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.gaozhi.wh.asynctask.MyAsyncTask$2.call(SourceFile:78)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.gaozhi.wh.asynctask.MyAsyncTask$2.call(SourceFile:1)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.gaozhi.wh.utils.async.AsyncTaskUtils$2.doInBackground(SourceFile:114)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at com.gaozhi.wh.utils.async.AsyncTaskUtils$2.doInBackground(SourceFile:1)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at android.os.AsyncTask$2.call(AsyncTask.java:287)
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> 07-24 10:54:13.529: E/AndroidRuntime(12130): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
> 07-24 10:54:13.529: E/AndroidRuntime(12130): ... 4 more
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I found that is caused by this line of code error

`info = GsonUtils.getMutileBean(result,new TypeToken<JsonResult<T>>() {}.getType());`

```
public static <T> T getMutileBean(String jsonData, Type type)
        throws Exception {
    return new Gson().fromJson(jsonData, type);
}

```

.

But I had add proguard configuration for Gson

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> # Gson uses generic type information stored in a class file when working with fields. Proguard
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> 
> # removes such information by default, so configure it to keep all of it.
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> 
> -keepattributes Signature
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> # For using GSON @Expose annotation
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> -keepattributes *Annotation*
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> # Gson specific classes
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> -keep class sun.misc.Unsafe { \*; }
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> 
> #-keep class com.google.gson.stream.\*\* { \*; }
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> # Application classes that will be serialized/deserialized over Gson
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> 
> -keep class com.google.gson.examples.android.model.\*\* { \*; }
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> 
>