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RxJava 2.2.13 Proguard issue

See original GitHub issue

After updating to RxJava 2.2.13 we get the following proguard warnings and the build fails:

Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find superclass or interface java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find superclass or interface java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find superclass or interface java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscription: can't find superclass or interface java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowPublisherFromReactive: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$FlowToReactiveSubscription: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactivePublisherFromFlow: can't find referenced class java.util.concurrent.Flow$Publisher
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowProcessor: can't find referenced class java.util.concurrent.Flow$Processor
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscriber: can't find referenced class java.util.concurrent.Flow$Subscriber
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription
Warning: org.reactivestreams.FlowAdapters$ReactiveToFlowSubscription: can't find referenced class java.util.concurrent.Flow$Subscription

I assume it’s because of the changes from Reactive Streams 1.0.3:

FlowAdapters artifact removed, FlowAdapters moved into the core jar https://github.com/reactive-streams/reactive-streams-jvm/issues/424

Any advice on how to fix Proguard?

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Comments:5 (3 by maintainers)

github_iconTop GitHub Comments

8reactions
akarnokdcommented, Oct 15, 2019

You may suppress the warning apparently, one of these could work:

-dontwarn org.reactivestreams.FlowAdapters
-dontwarn org.reactivestreams.**
-dontwarn java.util.concurrent.flow.**
-dontwarn java.util.concurrent.**
1reaction
vanniktechcommented, Nov 7, 2019

I believe it’s as simple as this:

diff --git a/src/main/resources/META-INF/proguard/rxjava2.pro b/src/main/resources/META-INF/proguard/rxjava2.pro
new file mode 100644
index 000000000..b9994780a
--- /dev/null
+++ b/src/main/resources/META-INF/proguard/rxjava2.pro
@@ -0,0 +1,2 @@
+# Reactive Stream specification is bringing them but not using them.
+-dontwarn java.util.concurrent.Flow
\ No newline at end of file

I wanted to submit a PR but RxJava does not work with Gradle 5.x and the Gradle Wrapper 4.x that is being used does not like my Java 11 version 🤷‍♂️ Hence I can’t verify it

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