is a view of what created it, we use _as_.
 *  Fix: Permit response codes of zero for compatibility with OkHttp 3.x.
 *  Fix: Change the return type of `MockWebServer.takeRequest()` to be nullable.
 *  Fix: Make `Call.clone()` public to Kotlin callers.


## Version 4.0.0-RC1

_2019-06-03_

 *  First stable preview of OkHttp 4.


## Version 3.x

[Change log](https://square.github.io/okhttp/changelog_3x/)

    public CharSource asCharSource(Charset charset) {
      checkNotNull(charset);
      return CharSource.empty();
    }

    @Override
    public byte[] read() {
      return bytes; // length is 0, no need to clone
    }

    @Override
    public String toString() {
      return "ByteSource.empty()";
    }
  }

  private static final class ConcatenatedByteSource extends ByteSource {

          unlock();
        }
      }
    }

    /**
     * Removes an entry from within a table. All entries following the removed node can stay, but
     * all preceding ones need to be cloned.
     *
     * <p>This method does not decrement count for the removed entry, but does decrement count for
     * all partially collected entries which are skipped. As such callers which are modifying count

	t.lastDayMu.RLock()
	defer t.lastDayMu.RUnlock()

	res := make(DailyAllTierStats, len(t.lastDayStats))
	for tier, st := range t.lastDayStats {
		res[tier] = st.clone()
	}
	return res
}

// UpdateWorkers at the end of this function leaves n goroutines waiting for
// transition tasks
func (t *transitionState) UpdateWorkers(n int) {
	t.mu.Lock()
	defer t.mu.Unlock()

urn n.each(function(e){var t=n.eq(e);h&&(r[0]=d.call(this,e,t.html())),$e(t,r,i,o)});if(f&&(t=(e=Ae(r,n[0].ownerDocument,!1,n,o)).firstChild,1===e.childNodes.length&&(e=t),t||o)){for(s=(a=ce.map(Se(e,"script"),Ie)).length;c<f;c++)u=e,c!==p&&(u=ce.clone(u,!0,!0),s&&ce.merge(a,Se(u,"script"))),i.call(n[c],u,c);if(s)for(l=a[a.length-1].ownerDocument,ce.map(a,We),c=0;c<s;c++)u=a[c],Ce.test(u.type||"")&&!_.access(u,"globalEval")&&ce.contains(l,u)&&(u.src&&"module"!==(u.type||"").toLowerCase()?ce._eva...

      this.expandTableThreshold = 0;
    }

    RegularSetBuilderImpl(RegularSetBuilderImpl<E> toCopy) {
      super(toCopy);
      this.hashTable = (toCopy.hashTable == null) ? null : toCopy.hashTable.clone();
      this.maxRunBeforeFallback = toCopy.maxRunBeforeFallback;
      this.expandTableThreshold = toCopy.expandTableThreshold;
      this.hashCode = toCopy.hashCode;
    }

    @Override

		if e == nil { // got final fragment
			break
		}
		if e != ErrBufferFull { // unexpected error
			err = e
			break
		}

		// Make a copy of the buffer.
		buf := bytes.Clone(frag)
		fullBuffers = append(fullBuffers, buf)
		totalLen += len(buf)
	}

	totalLen += len(frag)
	return fullBuffers, frag, totalLen, err
}

			if g.metricsGroupOpts.dependBucketTargetSys {
				if globalBucketTargetSys == nil {
					return []MetricV2{}, nil
				}
			}
			return read(GlobalContext), nil
		},
	)
}

func (m *MetricV2) clone() MetricV2 {
	metric := MetricV2{
		Description:          m.Description,
		Value:                m.Value,
		HistogramBucketLabel: m.HistogramBucketLabel,

        this.targetHost = targetHost;
        this.transport = transport.acquire();
        this.trees = new CopyOnWriteArrayList<>();
        this.credentials = tf.getCredentials().unwrap(CredentialsInternal.class).clone();

        // Initialize multi-channel support
        this.channelManager = new ChannelManager(tf, this);

        // Initialize SMB3 feature managers
        this.leaseManager = new LeaseManager(tf);

            return cur;
        }
    }

    byte[] getPreauthIntegrityHash() {
        synchronized (this.preauthHashLock) {
            return this.preauthIntegrityHash != null ? this.preauthIntegrityHash.clone() : null;
        }
    }

    private void updatePreauthHash(final byte[] input) throws CIFSException {
        synchronized (this.preauthHashLock) {
            try {