presto-spi/src/main/java/io/prestosql/spi/connector/classloader/ClassLoaderSafeConnectorMetadata.java/ClassLoaderSafeConnectorMetadata/revokeRoles
class ClassLoaderSafeConnectorMetadata:    @Override
    public void revokeRoles(ConnectorSession connectorSession, Set<String> roles, Set<PrestoPrincipal> grantees, boolean adminOptionFor, Optional<PrestoPrincipal> grantor)
    {
        try (ThreadContextClassLoader ignored = new ThreadContextClassLoader(classLoader)) {
            delegate.revokeRoles(connectorSession, roles, grantees, adminOptionFor, grantor);
        }
    }