Impossible to obfuscate project with proguard using library version 1.0.4 and 1.0.5

[andrey-shikhov]

Proguard failed obfuscation with library 1.0.4+ but all is ok for 1.0.3.
From proguard docs:
Warning: can't find enclosing class/method If there are unresolved references to classes that are defined inside methods in your input, once more, your compiled class files are most likely inconsistent. Possibly, some class file didn't get recompiled properly, or some class file was left behind after its source file was removed. Try removing all compiled class files and rebuilding your project.

Failure log:

Warning: com.annimon.stream.Collectors$1$1: can't find enclosing method 'com.annimon.stream.function.Supplier supplier()' in program class com.annimon.stream.Collectors$1
Warning: com.annimon.stream.Collectors$1$2: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$1
Warning: com.annimon.stream.Collectors$2$1: can't find enclosing method 'com.annimon.stream.function.Supplier supplier()' in program class com.annimon.stream.Collectors$2
Warning: com.annimon.stream.Collectors$2$2: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$2
Warning: com.annimon.stream.Collectors$3$1: can't find enclosing method 'com.annimon.stream.function.Supplier supplier()' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$2: can't find referenced field 'java.lang.CharSequence val$delimiter' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$2: can't find referenced field 'java.lang.CharSequence val$prefix' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$2: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$3: can't find referenced field 'java.lang.String val$emptyValue' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$3: can't find referenced field 'java.lang.CharSequence val$suffix' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$3$3: can't find enclosing method 'com.annimon.stream.function.Function finisher()' in program class com.annimon.stream.Collectors$3
Warning: com.annimon.stream.Collectors$4$1: can't find enclosing method 'com.annimon.stream.function.Supplier supplier()' in program class com.annimon.stream.Collectors$4
Warning: com.annimon.stream.Collectors$4$2: can't find referenced field 'com.annimon.stream.function.Function val$mapper' in program class com.annimon.stream.Collectors$4
Warning: com.annimon.stream.Collectors$4$2: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$4
Warning: com.annimon.stream.Collectors$4$3: can't find enclosing method 'com.annimon.stream.function.Function finisher()' in program class com.annimon.stream.Collectors$4
Warning: com.annimon.stream.Collectors$5$1: can't find enclosing method 'com.annimon.stream.function.Supplier supplier()' in program class com.annimon.stream.Collectors$5
Warning: com.annimon.stream.Collectors$5$2: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$5
Warning: com.annimon.stream.Collectors$5$3: can't find enclosing method 'com.annimon.stream.function.Function finisher()' in program class com.annimon.stream.Collectors$5
Warning: com.annimon.stream.Collectors$7$1: can't find referenced field 'com.annimon.stream.function.Function val$classifier' in program class com.annimon.stream.Collectors$7
Warning: com.annimon.stream.Collectors$7$1: can't find referenced field 'com.annimon.stream.Collector val$downstream' in program class com.annimon.stream.Collectors$7
Warning: com.annimon.stream.Collectors$7$1: can't find enclosing method 'com.annimon.stream.function.BiConsumer accumulator()' in program class com.annimon.stream.Collectors$7
Warning: com.annimon.stream.Collectors$7$2: can't find referenced field 'com.annimon.stream.Collector val$downstream' in program class com.annimon.stream.Collectors$7
Warning: com.annimon.stream.Collectors$7$2: can't find enclosing method 'com.annimon.stream.function.Function finisher()' in program class com.annimon.stream.Collectors$7
Warning: com.annimon.stream.function.BiFunction$Util$2: can't find enclosing method 'com.annimon.stream.function.BiFunction minBy(java.util.Comparator)' in program class com.annimon.stream.function.BiFunction$Util
Warning: com.annimon.stream.function.BiFunction$Util$3: can't find enclosing method 'com.annimon.stream.function.BiFunction maxBy(java.util.Comparator)' in program class com.annimon.stream.function.BiFunction$Util

[aNNiMON]

@andrey-shikhov what proguard config you use?

Try this option
-keepattributes EnclosingMethod

[andrey-shikhov]

Proguard options don't matter because proguard interrupts itself during loading all library jars to build dependency tree, before obfuscation begin.
I created sample project which shows issue, try to run './gradlew assembleRelease' and it will fail, but assembleDebug version is working. https://drive.google.com/file/d/0B5KouoPaI5qqUWZvemk3RktCN1U/view?usp=sharing

[aNNiMON]

@andrey-shikhov this is just warning. I think default proguard configuration was changed with latest Android SDK Tools version, so it fails instead ignoring warnings.

Try this option:
-dontwarn com.annimon.stream.**

[andrey-shikhov]

So, I made some research, proguard dontwarn seems to be working. I also made check out this repository and assembled library. Then, replaced remote dependency in test project above with that jar and these warnings are gone(without dontwarn rule), so I think something is wrong with build in repository.
My config: Ubuntu 15.10 x64, oracle jdk 1.8.0_66

[aNNiMON]

Thanks for pointing to that issue. You're right, the problem is in build system.

I've updated library on Maven, please, check it now. Perhaps, you will need to clean gradle cache /.gradle/caches/modules-2/files-2.1/com.annimon/stream/. Since you're using jcenter, it may need more time to update library.

[jaredsburrows]

@andrey-shikhov I ma using gradle with no proguard rules it everything is working file. Can you share you build.gradle?