* from this file as necessary.
 *
 * This class also keeps a small buffer of bytes recently read from upstream. This is intended to
 * save a small amount of file I/O and data copying.
 */
class Relay private constructor(
  /**
   * Read/write persistence of the upstream source and its metadata. Its layout is as follows:
   *

      .addNetworkInterceptor(interceptor)
      .build()
    assertThat(original.interceptors.size).isEqualTo(0)
    assertThat(original.networkInterceptors.size).isEqualTo(0)
  }

  /**
   * When copying the client, stateful things like the connection pool are shared across all
   * clients.
   */
  @Test fun cloneSharesStatefulInstances() {
    val client = clientTestRule.newClient()

  @Synchronized
  @Throws(IOException::class)
  override fun close() {
    if (!initialized || closed) {
      closed = true
      return
    }

    // Copying for concurrent iteration.
    for (entry in lruEntries.values.toTypedArray()) {
      if (entry.currentEditor != null) {
        entry.currentEditor?.detach() // Prevent the edit from completing normally.
      }
    }