groups are reset

Hi,

I found this line to reset the previously assigned groups of the user.
Just change it to this.roles= new ArrayList(); and it should be working as expected again.

https://github.com/Azure-Samples/ms-identity-msal-java-samples/blob/32f2740e43b88d9251d265f81c2d9e9d5b83ca45/3-java-servlet-web-app/1-Authentication/sign-in/src/main/java/com/microsoft/azuresamples/msal4j/helpers/IdentityContextData.java#L140

Best regards,
Jan

Start in 3-java-servlet-web-app/1-Authentication/sign-in/src/main/java/com/microsoft/azuresamples/msal4j/helpers/IdentityContextData.java at line 140, where the issue identifies the group reset. Inspect how the roles list is initialized and verify in the sign-in sample that previously assigned groups are retained after the change.

索引モデルが issue の本文から書いたものです。