public boolean contains(long start, long end) {
        assert start <= end;
        return end <= getSafePoint() || m_map.encloses(range(start, end));
    }
public boolean contains ( long start , long end ) { assert start <= end ; return end <= getSafePoint ( ) || m_map . encloses ( range ( start , end ) ) ; }
Check if this tracker contains the given range. If the given range is
before the safe point, it always returns true.
@return true if the given range can be covered by the tracker.