Android上的Proguard和Netty 5(Proguard and Netty 5 on Android)

 我已经看到关于这个问题的几个问题，但是它们是针对旧版Netty的。 
 我已经尝试了他们的答案，使用io.netty切换org.jboss.netty，但发生同样的错误。 
 
 我试图编译一个使用Netty 5.0.0Alpha2（build＃16）并启用了Proguard的Android应用程序。 
 
 没有Proguard，应用程序运行良好。 
 只要启用Proguard，我会在尝试使用Netty时遇到此异常： 
 
java.lang.IllegalStateException: unknown type parameter 'I': class io.netty.channel.SimpleChannelInboundHandler
    at io.netty.util.internal.TypeParameterMatcher.find0(Unknown Source)
    at io.netty.util.internal.TypeParameterMatcher.find(Unknown Source)
    at io.netty.channel.SimpleChannelInboundHandler.<init>(Unknown Source)
    at io.netty.channel.SimpleChannelInboundHandler.<init>(Unknown Source)
    ...
 
 这是我的Proguard配置： 
 
# billing
-keep class com.android.vending.billing.**

# butterknife
-dontwarn butterknife.internal.**
-keep class **$$ViewInjector {
    *;
}
-keepnames class * {
    @butterknife.InjectView *;
}

# admob
-keep public class com.google.android.gms.ads.** {
    public *;
}

-keep public class com.google.ads.** {
    public *;
}

# logging
-assumenosideeffects class android.util.Log

# netty (partial)
-dontwarn io.netty.**
-dontwarn sun.**
 
 我已经测试了它，没有使用-twtwarn选项来查看警告是否会指向正确的方向，但是它都缺少可选的依赖项，如slf4j和Tomcat。 
 
 我也尝试过排除所有Netty类，如下所示： 
 
-keep class io.netty.** {
    *;
}
 
 ...但似乎并没有解决它。 

I've seen a couple questions regarding this issue, but they are for older versions of Netty.
 I have tried their answers, switching org.jboss.netty out with io.netty, but the same error occurs.
 
I'm trying to compile an Android app that uses Netty 5.0.0Alpha2 (build #16) with Proguard enabled.
 
Without Proguard, the app runs fine.
 As soon as I enable Proguard, I get this exception when it tries to use Netty:
 
java.lang.IllegalStateException: unknown type parameter 'I': class io.netty.channel.SimpleChannelInboundHandler
    at io.netty.util.internal.TypeParameterMatcher.find0(Unknown Source)
    at io.netty.util.internal.TypeParameterMatcher.find(Unknown Source)
    at io.netty.channel.SimpleChannelInboundHandler.<init>(Unknown Source)
    at io.netty.channel.SimpleChannelInboundHandler.<init>(Unknown Source)
    ...
 
This is my Proguard config:
 
# billing
-keep class com.android.vending.billing.**

# butterknife
-dontwarn butterknife.internal.**
-keep class **$$ViewInjector {
    *;
}
-keepnames class * {
    @butterknife.InjectView *;
}

# admob
-keep public class com.google.android.gms.ads.** {
    public *;
}

-keep public class com.google.ads.** {
    public *;
}

# logging
-assumenosideeffects class android.util.Log

# netty (partial)
-dontwarn io.netty.**
-dontwarn sun.**
 
I have tested it without the -dontwarn options to see if the warnings would point me in the right direction, but it's all missing optional dependencies like slf4j and Tomcat.
 
I have also tried excluding all the Netty classes like so:
 
-keep class io.netty.** {
    *;
}
 
...but that does not appear to fix it either.

原文：https://stackoverflow.com/questions/27083667