Error thrown in KeyCloak integration: Kie Server managed by Business Central

Unzip a clean jBPM 7.24.0; Unzip a clean Keycloak 4.8.3; Install adapter in jbpm: Unzip and install keycloak-wildfly-adapter-dist-4.8.3.Final.zip in the jBPM 7.24.0 folder; → bin/jboss-cli.sh --file=bin/adapter-install-offline.cli Start KC: ./bin/standalone.sh -Djboss.socket.binding.port-offset=100 Import attached realm kie_realm.json; It contains 2 clients, one for kie-server and one for business central; Use the attached standalone.xml in your jbpm installation; Modifications: Added the two secure deployments Added system properties for connectivity (same user/pass configured on KC) <property name="org.kie.server.user" value=""/> <property name="org.kie.server.pwd" value=""/> <property name="org.kie.server.controller.user" value=""/> <property name="org.kie.server.controller.pwd" value=""/> Start jbpm: ./bin/standalone.sh Following error appears when kie server tries to connect to bc: 23:46:29,346 ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /business-central/rest/controller/server/sample-server: java.lang.IllegalStateException: Should never be called in Keycloak flow at org.keycloak.keycloak-undertow-adapter@4.8.3.Final//org.keycloak.adapters.undertow.KeycloakServletExtension$2.verify(KeycloakServletExtension.java:167) at io.undertow.core@2.0.13.Final//io.undertow.security.impl.SecurityContextImpl.login(SecurityContextImpl.java:198) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.spec.HttpServletRequestImpl.login(HttpServletRequestImpl.java:483) at deployment.business-central.war//org.uberfire.ext.security.server.ServletSecurityAuthenticationService.login(ServletSecurityAuthenticationService.java:69) at deployment.business-central.war//org.uberfire.ext.security.server.ServletSecurityAuthenticationService$Proxy$_$$_WeldClientProxy.login(Unknown Source) at deployment.business-central.war//org.uberfire.ext.security.server.BasicAuthSecurityFilter.authenticate(BasicAuthSecurityFilter.java:157) at deployment.business-central.war//org.uberfire.ext.security.server.BasicAuthSecurityFilter.doFilter(BasicAuthSecurityFilter.java:94) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at deployment.business-central.war//org.uberfire.ext.security.server.SecureHeadersFilter.doFilter(SecureHeadersFilter.java:110) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at deployment.business-central.war//org.uberfire.ext.security.server.SecurityIntegrationFilter.doFilter(SecurityIntegrationFilter.java:70) at io.undertow.servlet@2.0.13.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)