Is there an valid proguard rule for RxJava and FasterXML?

android proguard rx-java kotlin fasterxml
Marvin picture Marvin · Oct 29, 2015 · Viewed 7.9k times · Source

Now the only problem stopping me from using kotlin in production is that I can't find a correct proguard file for it.

What I used:

1.Kotlin

2.Anko

3.Jackson-Kotlin-module

Here's the warning message:

:app:proguardRelease
Warning: com.fasterxml.jackson.databind.ext.DOMSerializer: can't find referenced class org.w3c.dom.bootstrap.DOMImplementationRegistry
Warning: rx.internal.util.unsafe.BaseLinkedQueueConsumerNodeRef: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.ConcurrentCircularArrayQueue: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.ConcurrentSequencedCircularArrayQueue: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.MpmcArrayQueueConsumerField: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.MpmcArrayQueueProducerField: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.MpscLinkedQueue: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.SpmcArrayQueueConsumerField: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.SpmcArrayQueueProducerField: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.SpscArrayQueue: can't find referenced class sun.misc.Unsafe
Warning: rx.internal.util.unsafe.UnsafeAccess: can't find referenced class sun.misc.Unsafe
Warning: there were 41 unresolved references to classes or interfaces.

Answer

Andrey Breslav picture Andrey Breslav · Nov 2, 2015

It has nothing to do with Kotlin. Ignore the warnings in your proguard file:

-dontwarn sun.misc.Unsafe
-dontwarn org.w3c.dom.bootstrap.DOMImplementationRegistry

Related questions

How to avoid reverse engineering of an APK file?

I am developing a payment processing app for Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file. If someone changes the .apk extension to .zip then they can unzip …

Read More
How to remove all debug logging calls before building the release version of an Android app?

According to Google, I must "deactivate any calls to Log methods in the source code" before publishing my Android app to Google Play. Extract from section 3 of the publication checklist: Make sure you deactivate logging and disable the debugging option …

Read More
Best practice for storing and protecting private API keys in applications

Most app developers will integrate some third party libraries into their apps. If it's to access a service, such as Dropbox or YouTube, or for logging crashes. The number of third party libraries and services is staggering. Most of those …

Read More