java.lang.ClassCastException: java.util.Collections$SingletonList cannot be cast to java.lang.String

[eparkhomenko]

When I try to get application credentials using following code:
PartnerCredentials.getInstance().generateByApplicationCredentials(
account.getCspClientId(),
account.getCspKey(),
"/" + account.getCspDomain() // e.g. 'test.onmicrosoft.com'
);

I see such exception:

com.microsoft.store.partnercenter.exception.PartnerException: Failed to do the application AAD login at com.microsoft.store.partnercenter.extensions.ApplicationPartnerCredentials.authenticate(ApplicationPartnerCredentials.java:172) ~[partnercenter-1.14.1.jar:1.14.1] at com.microsoft.store.partnercenter.extensions.PartnerCredentials.generateByApplicationCredentials(PartnerCredentials.java:69) ~[partnercenter-1.14.1.jar:1.14.1] at com.microsoft.store.partnercenter.extensions.PartnerCredentials.generateByApplicationCredentials(PartnerCredentials.java:50) ~[partnercenter-1.14.1.jar:1.14.1] Caused by: java.util.concurrent.ExecutionException: java.lang.ClassCastException: java.util.Collections$SingletonList cannot be cast to java.lang.String at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) ~[na:1.8.0_181] at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) ~[na:1.8.0_181] at com.microsoft.store.partnercenter.extensions.ApplicationPartnerCredentials.authenticate(ApplicationPartnerCredentials.java:168) ~[partnercenter-1.14.1.jar:1.14.1] ... 103 common frames omitted Caused by: java.lang.ClassCastException: java.util.Collections$SingletonList cannot be cast to java.lang.String at com.nimbusds.oauth2.sdk.util.URLUtils.serializeParameters(URLUtils.java:105) ~[oauth2-oidc-sdk-5.18.1.jar:5.18.1] at com.microsoft.aad.msal4j.TokenRequest.toOauthHttpRequest(TokenRequest.java:168) ~[msal4j-0.5.0-preview.jar:0.5.0-preview] at com.microsoft.aad.msal4j.TokenRequest.executeOauthRequestAndProcessResponse(TokenRequest.java:55) ~[msal4j-0.5.0-preview.jar:0.5.0-preview] at com.microsoft.aad.msal4j.ClientApplicationBase.acquireTokenCommon(ClientApplicationBase.java:163) ~[msal4j-0.5.0-preview.jar:0.5.0-preview] at com.microsoft.aad.msal4j.AcquireTokenByAuthorizationGrantSupplier.execute(AcquireTokenByAuthorizationGrantSupplier.java:52) ~[msal4j-0.5.0-preview.jar:0.5.0-preview] at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:57) ~[msal4j-0.5.0-preview.jar:0.5.0-preview] at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:17) ~[msal4j-0.5.0-preview.jar:0.5.0-preview]

Environment

MacOS Mojave 10.14.6 (18G95)
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

[ghost]

@eparkhomenko thank you for bring this to our attention. I have recently made some changes that will address this issue.

[sean-m-oleary]

@eparkhomenko thank you for bring this to our attention. I have recently made some changes that will address this issue.

what were the changes? I'm facing a similar issue using MSAL and OAuth

[ghost]

@eparkhomenko and @lanman2000 version 1.15.1 was just pushed to Maven Central, and it contains a fix for this issue. Please let us know if you have any issues are updating.

[sean-m-oleary]

Thank you! @IsaiahWilliams

[abitgcp]

Hi, Can anyone guide me what exactly was the change added in 1.15.1 version to fix this issue?
I see a lot of changes in that version and so not able to figure out what exactly was the fix.
I am facing the same issue in Partner-Center-Java-Samples Github project.
https://github.com/microsoft/Partner-Center-Java-Samples