[keycloak-dev] Exception handling for own REST API - is it possible to register own javax.ws.rs.ext.ExceptionMapper?

Hi, I'm implementing my own REST endpoint using RealmResourceProvider and I'm thinking how to perform error handling (which is not covered in example). Is it possible to register my javax.ws.rs.ext.ExceptionMapper subclass to handle my exceptions? I tried to add subclass of it annotated with javax.ws.rs.ext.Provider into my code but it is not used. I get common error page with: *Stack Trace* org.jboss.resteasy.spi.UnhandledException: com.redhat.developer.keycloak.rest.InvalidParametersException: email param must be specified Thansk in advance. Vlastimil -- Vlastimil Elias Principal Software Engineer Red Hat Developer | Engineering