Android Cling/Upnp proguard

Question

我使用 Cling 创建了应用程序并且工作正常但是当我创建发布版本时我收到以下消息并且渲染器没有播放任何内容:

   11-22 16:24:53.341  20172-20172/? I/RendererCommand﹕ TrackMetadata : TrackMetadata [id=1, title=IMG-20151120-WA0007, artist=, genre=, artURI=res=http://192.168.1.4:8089/1.jpg, itemClass=object.item.imageItem]
11-22 16:24:53.345  20172-20172/? V/RendererCommand﹕ Resume
11-22 16:24:53.351  20172-20301/? W/RendererCommand﹕ Fail to stop ! Error: Current state of service prevents invoking that action. Error writing request message. Can't transform message payload: java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType. (HTTP response was: 500 Internal Server Error)
11-22 16:24:53.351  20172-20301/? I/RendererCommand﹕ Set uri to http://192.168.1.4:8089/1.jpg
11-22 16:24:53.353  20172-20386/? D/RendererCommand﹕ Update state !
11-22 16:24:53.354  20172-20264/? W/RendererCommand﹕ Fail to set URI ! Error: Current state of service prevents invoking that action. Error writing request message. Can't transform message payload: java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType. (HTTP response was: 500 Internal Server Error)
11-22 16:24:53.354  20172-20262/? W/RendererCommand﹕ Fail to get position info ! Error: Current state of service prevents invoking that action. Error writing request message. Can't transform message payload: java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType. (HTTP response was: 500 Internal Server Error)
11-22 16:24:54.354  20172-20386/? D/RendererCommand﹕ Update state !

下面是我的proguard条目:

-dontoptimize
-dontshrink
-dontskipnonpubliclibraryclasses
-dontpreverify
-allowaccessmodification
-verbose

-dontwarn org.fourthline.cling.**
-dontwarn org.seamless.**
-dontwarn org.eclipse.jetty.**
-dontwarn android.support.v4.app.**
-dontwarn android.support.design.widget.**

-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-keep class javax.** { *; }
-keep class org.** { *; }
-keep class org.fourthline.cling.** { *;}
-keep class org.seamless.** { *;}
-keep class org.eclipse.jetty.** { *;}
-keep class org.slf4j.** { *;}
-keep class javax.servlet.** { *;}

-keepclasseswithmembernames class * {
    native <methods>;
}

-keepclasseswithmembernames class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembernames class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}


-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

-keepattributes *Annotation*

Answer 1

好的，在阅读了 proguard 手册并进行了多次尝试之后，我终于通过将上述 prguard 文件的最后一行修改为

-keepattributes Annotation, InnerClasses, Signature

一切正常

来自混淆

Specifies the generic signature of the class, field, or method. Compilers may need this information to properly compile classes that use generic types from compiled libraries. Code may access this signature by reflection.

问题是反射(reflection)