[Android] SDK 17.2.0 NEW R8/Proguard issue (not in 17.1.1)

Question

When updating to io.intercom.android:intercom-sdk version 17.2.0If R8/Proguard is enabled the following error occurs on the build:Missing class lombok.Generated (referenced from: io.ably.lib.network.HttpBody io.ably.lib.network.HttpResponse$HttpResponseBuilder.body and 94 other contexts) This does not happen on version 17.1.1  It looks like maybe something changed in the build but didn’t include a rule in it’s consumer-rules.pro?  gemini says: -dontwarn lombok.** may fix it?

Sean M · Accepted Answer

Hi ​@J.T.Seán here from the Intercom engineering support team 👋 how are you doing today?Thanksfor reportingthis! You're correct, theAbly library (a dependency) usesLombok annotations that are compile-time only.Lombok is a Java annotation librarythat generates codeduringcompilation(likegetters, setters, builders, etc.). Oncethe code is compiled, Lombok'sjobis done, it's not needed at runtime. TheAbly library includesLombok as acompileOnlydependency, so theannotationsare available during build butaren't packaged intothe final library.WhenR8/ProGuard analyses thebytecode, it sees referencestolombok.Generatedand other Lombok classes, but thoseclassesdon't exist inthe runtimeclasspath(because they wereintentionally excluded). Thistriggersthe"Missingclass" warning.So excluding Lombok from ProGuard/R8 warnings like you have said will resolve this.

J.T. · Answer

So would it make sense for you add that to Intercom’sconsumer-rules.pro for the library so end users don’t run into this?

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