Proguard error when try to catch MsalUiRequiredException

[thaworn-li]

Hi, I have a problem when try to build released app with proguard enable. we found an error like this when R8 minifiy

Missing class com.google.crypto.tink.subtle.Ed25519Sign$KeyPair (referenced from: com.nimbusds.jose.jwk.OctetKeyPair com.nimbusds.jose.jwk.gen.OctetKeyPairGenerator.generate()) Missing class com.google.crypto.tink.subtle.Ed25519Sign (referenced from: com.google.crypto.tink.subtle.Ed25519Sign com.nimbusds.jose.crypto.Ed25519Signer.tinkSigner and 2 other contexts) Missing class com.google.crypto.tink.subtle.Ed25519Verify (referenced from: com.google.crypto.tink.subtle.Ed25519Verify com.nimbusds.jose.crypto.Ed25519Verifier.tinkVerifier and 2 other contexts) Missing class com.google.crypto.tink.subtle.X25519 (referenced from: com.nimbusds.jose.JWECryptoParts com.nimbusds.jose.crypto.X25519Encrypter.encrypt(com.nimbusds.jose.JWEHeader, byte[]) and 2 other contexts) Missing class edu.umd.c

[negoe]

Hi @thaworn-li Can you please share the following:

• Device: [e.g. Pixel, OnePlus 6, etc]
• Android Version: [e.g. API Level, Build Number]
• MSAL Version

This needs further investigation from our side in order to confirm you.

[thaworn-li]

Hi @negoe. Sorry to answer you late.

I try to build .aab release version to publish to playstore.

Here is my config in android project

• const val SDK_MIN = 23 const val SDK_TARGET = 33 const val SDK_COMPILE = 33 JAVA_VERSION = JavaVersion.VERSION_11
• MSAL version = 4.9.0

Here is the code that causes proguard failure. If I remove this code, It will be work fine.

Build error message Missing class com.google.crypto.tink.subtle.Ed25519Sign$KeyPair (referenced from: com.nimbusds.jose.jwk.OctetKeyPair com.nimbusds.jose.jwk.gen.OctetKeyPairGenerator.generate()) Missing class com.google.crypto.tink.subtle.Ed25519Sign (referenced from: com.google.crypto.tink.subtle.Ed25519Sign com.nimbusds.jose.crypto.Ed25519Signer.tinkSigner and 2 other contexts) Missing class com.google.crypto.tink.subtle.Ed25519Verify (referenced from: com.google.crypto.tink.subtle.Ed25519Verify com.nimbusds.jose.crypto.Ed25519Verifier.tinkVerifier and 2 other contexts) Missing class com.google.crypto.tink.subtle.X25519 (referenced from: com.nimbusds.jose.JWECryptoParts com.nimbusds.jose.crypto.X25519Encrypter.encrypt(com.nimbusds.jose.JWEHeader, byte[]) and 2 other contexts) Missing class edu.umd.cs.findbugs.annotations.NonNull (referenced from: java.util.Map com.microsoft.identity.common.java.challengehandlers.PKeyAuthChallenge.getChallengeHeaderWithSignedJwt(com.microsoft.identity.common.java.challengehandlers.IDeviceCertificate) and 13 other contexts) Missing class edu.umd.cs.findbugs.annotations.Nullable (referenced from: android.app.Activity com.microsoft.identity.common.internal.platform.AndroidPlatformUtil.mActivity and 296 other contexts) Missing class edu.umd.cs.findbugs.annotations.SuppressFBWarnings (referenced from: boolean com.microsoft.identity.common.crypto.AndroidWrappedKeyLoader.sSkipKeyInvalidationCheck and 72 other contexts)

[melissaahn]

If you are still seeing this issue with more current versions of MSAL, please reach out to your Microsoft representative, and they will create a support ticket. Thank you.