When running the elytron and elytron-oidc-client integration tests after the Big Bang changes, it seems that the Elytron version used by the server during the test runs is still 1.19.0.Final (the Elytron version from Core) instead of 2.0.0.Beta1 (the Elytron version from WildFly), i.e.,

When running mvn clean install from testsuite/integration/elytron or testsuite/integration/elytron-oidc-client, Elytron 1.19.0.Final appears in the server log file in the testsuite/integration/elytron/target/wildfly/standalone/log/server.log and testsuite/integration/elytron-oidc-client/target/wildfly/standalone/log/server.log files.