docs: public void setExpirationTime(long expirationTime) {
  	  if (lock == SET) {
  		 throw new IllegalStateException("EntryInfo is locked");
  	  }
  	  expirationTimeFlag = SET;
  	  this.expirationTime = expirationTime;
  	  this.timeLimit = (int) ((expirationTime - System.currentTimeMillis()) / 1000L);
     }