long accessTime = e.getAccessTime();
        assertTrue(accessTime >= lastAccessTime);
        lastAccessTime = accessTime;
        long writeTime = e.getWriteTime();
        assertTrue(writeTime >= lastWriteTime);
        lastWriteTime = writeTime;
      }

      lastAccessTime = 0;
      lastWriteTime = 0;
      for (ReferenceEntry<K, V> e : segment.accessQueue) {

        long accessTime = e.getAccessTime();
        assertTrue(accessTime >= lastAccessTime);
        lastAccessTime = accessTime;
        long writeTime = e.getWriteTime();
        assertTrue(writeTime >= lastWriteTime);
        lastWriteTime = writeTime;
      }

      lastAccessTime = 0;
      lastWriteTime = 0;
      for (ReferenceEntry<K, V> e : segment.accessQueue) {

    }

    // The code below is exactly the same for each write entry type.

    volatile long writeTime = Long.MAX_VALUE;

    @Override
    public long getWriteTime() {
      return writeTime;
    }

    @Override
    public void setWriteTime(long time) {
      this.writeTime = time;
    }

    // Guarded By Segment.this
    @Weak ReferenceEntry<K, V> nextWrite = nullEntry();

    }

    // The code below is exactly the same for each write entry type.

    volatile long writeTime = Long.MAX_VALUE;

    @Override
    public long getWriteTime() {
      return writeTime;
    }

    @Override
    public void setWriteTime(long time) {
      this.writeTime = time;
    }

    // Guarded By Segment.this
    @Weak ReferenceEntry<K, V> nextWrite = nullEntry();