Can't shrink flurry with proguard

Here is my proguard config (I copied it from android tools folder and added some lines).

-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
-optimizationpasses 5
-allowaccessmodification
-dontpreverify
    
# The remainder of this file is identical to the non-optimized version
# of the Proguard configuration file (except that the other file has
# flags to turn off optimization).

-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose

-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
    native <methods>;
}

# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
   void set*(***);
   *** get*();
}

# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

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

-keepclassmembers class **.R$* {
    public static <fields>;
}

# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version.  We know about them, and they are safe.
-dontwarn android.support.**

######################
# added by me
########################
# guava
-keepclasseswithmembers class com.google.common.base.internal.Finalizer{
    <methods>;
}

-dontwarn sun.misc.Unsafe
-dontwarn com.google.common.collect.MinMaxPriorityQueue

#
#Action Bar Sherlock
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }


#-dontobfuscate    
#-libraryjars libs/FlurryAgent.jar

I would like to use Flurry in my app, but when I try to obfuscate my app with FlurryAgen.jar the proguard fails saying a dozens of errors like this:

Warning: com.flurry.android.ay: can't find referenced class com.google.ads.AdListener

Also proguard fails when I try not to obfuscate the sources.

How to use flurry with proguard? And how to make proguard not to obfuscate my sources?

UPDATE Also I mentioned that the FlurryAgent.jar seems already obfuscated - http://korniltsev.ru/p/jBU0f1c.png . Maybe we can ignore shrinking the whole jar?

Finally I managed to do that like this:

-keep class com.flurry.** { *; }
-dontwarn com.flurry.**