in src/main/java/org/apache/sling/jackrabbit/usermanager/impl/post/CreateUserServlet.java [176:184]
private void ungetSession(final Session session) {
if (session != null) {
try {
session.logout();
} catch (Exception t) {
log.error(String.format("Unable to log out of session: %s", t.getMessage()), t);
}
}
}