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Area

core

Describe the bug

I've implemented a custom email provider, which used to work absolutely fine in v21. Already then, I found out that this only works when you disable the default freemarker provider. If this is not done, I get the following error when trying to send any email:

Failed authentication: java.lang.NullPointerException: Cannot invoke "org.keycloak.email.EmailTemplateProvider.setRealm(org.keycloak.models.RealmModel)" because the return value of "org.keycloak.models.KeycloakSession.getProvider(java.lang.Class)" is null

Disabling freemarker email template is done in the build and run steps as follows:

kc.sh build --spi-email-template-freemarker-enabled=false
kc.sh start --optimized --spi-email-template-freemarker-enabled=false

Resulting in it being disabled:

As said, this used to work in v21. Now in v23 it still works in dev mode, but not in prod mode:

Is there some change in the way this is done, or is there a bug? Or alternatively, can I set up my email template provider in such a way that I don't have to disable the freemarker template?

Version

23.0.6

Regression

• The issue is a regression

Expected behavior

Freemarker email template provider is removed

Actual behavior

Freemarker email template provider is not removed

How to Reproduce?

Add --spi-email-template-freemarker-enabled=false to build and start commands in Keycloak v23

Anything else?

No response