ProGuard configuration for Guava with obfuscation and optimization

Question

Looking for a ProGuard configuration for Guava that will obfuscate and optimize, as the default one that is provided on the website does not.

Not only that I cannot

Answer 1

These proguard-rules worked for me: guava 23.3-android

-dontwarn sun.misc.Unsafe
-dontwarn com.google.common.collect.MinMaxPriorityQueue
-dontwarn com.google.common.util.concurrent.FuturesGetChecked**
-dontwarn javax.lang.model.element.Modifier

Answer 2

Total proguard rule for guava 20.0. For now the latest guava 21 does not support android.

-dontwarn com.google.common.base.**
-keep class com.google.common.base.** {*;}
-dontwarn com.google.errorprone.annotations.**
-keep class com.google.errorprone.annotations.** {*;}
-dontwarn   com.google.j2objc.annotations.**
-keep class com.google.j2objc.annotations.** { *; }
-dontwarn   java.lang.ClassValue
-keep class java.lang.ClassValue { *; }
-dontwarn   org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-keep class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement { *; }

Answer 3

Now that Guava 19.0 is released, I found that I had to add these rules.

-keep class com.google.j2objc.annotations.** { *; }
-dontwarn   com.google.j2objc.annotations.**
-keep class java.lang.ClassValue { *; }
-dontwarn   java.lang.ClassValue
-keep class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement { *; }
-dontwarn   org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

Answer 4

This message suggests the following workaround:

-dontwarn com.google.common.collect.MinMaxPriorityQueue 

I'd like to think that Proguard could be changed to make this unnecessary, but we haven't checked with its owners.