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Keycloak 21.1.2: java.lang.IllegalStateException: Could not find ScriptEngine for script

I am using quay.io/keycloak/keycloak:21.1.2 docker image with Java script adapters, I get below error when the Javascript adapters are executed in the authentication flow

keycloak-1 keycloak 2023-09-26 11:19:33,012 WARN [org.keycloak.services] (executor-thread-5) KC-SERVICES0013: Failed authentication: java.lang.IllegalStateException: Could not find ScriptEngine for script: Script{id='null', realmId='master', name='role-based-authenticator', type='text/javascript', code='AuthenticationFlowError = Java.type("org.keycloak.authentication.AuthenticationFlowError");

But as per release notes at https://www.keycloak.org/docs/latest/release_notes/index.html#keycloak-21-1-0 version 21.1.0 onwards Nashorn javascript engine is available in Keycloak server by default, but for some reason this does not work. How can i fix this?

Via Active questions tagged javascript - Stack Overflow https://ift.tt/xKvh1HG

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