PageManager pageManager = m_engine.getPageManager();
// Forcibly expire any page locks
PageLock lock = pageManager.getCurrentLock(page);
if (lock != null) {
pageManager.unlockPage(lock);
}
// Remove all of the existing ACLs.
String pageText = m_engine.getPureText(page);
Matcher matcher = DefaultAclManager.ACL_PATTERN.matcher(pageText);