code: public synchronized boolean removeInstance(T element) {
  		if (end == start) return false;
  		if (end == -1) {
  			for (int i = array.length - 1; i >= 0; --i)
  				if (array[i] == element) {
  					removeAt(i);
  					return true;
  				}
  			return false;
  		}
  		if (end < start) {
  			for (int i = array.length - 1; i >= start; --i)
  				if (array[i] == element) {
  					removeAt(i);
  					return true;
  				}
  			for (int i = 0; i < end; ++i)
  				if (array[i] == element) {
  					removeAt(i);
  					return true;
  				}
  			return false;
  		}
  		for (int i = start; i < end; ++i)
  			if (array[i] == element) {
  				removeAt(i);
  				return true;
  			}
  		return false;
  	}
docs: Remove the given instance.