Thread w = thread;
      if (w != null) {
        thread = null;
        LockSupport.unpark(w);
      }
    }
  }

  /*
   * Now that we've initialized everything else, we can run the initialization code for
   * ATOMIC_HELPER. That initialization code may log after we assign to ATOMIC_HELPER.
   */

  private static final AtomicHelper ATOMIC_HELPER;

  static {

   * explicitly closed.
   */
  fun truncateLastFrame(length: Int): Http2Writer {
    val lastFrame = outFrames.removeAt(outFrames.size - 1)
    require(length < bytesOut.size - lastFrame.start)

    // Move everything from bytesOut into a new buffer.
    val fullBuffer = Buffer()
    bytesOut.read(fullBuffer, bytesOut.size)

    // Copy back all but what we're truncating.
    fullBuffer.read(bytesOut, lastFrame.start + length)

            ? UnsafeByteArray.UNSAFE_LITTLE_ENDIAN
            : UnsafeByteArray.UNSAFE_BIG_ENDIAN;
      }
    } catch (Throwable t) {
      // ensure we really catch *everything*
    }

    return JavaLittleEndianBytes.INSTANCE;
  }

  // Compare AbstractFuture.VarHandleAtomicHelperMaker.
  private enum VarHandleLittleEndianBytesMaker {
    INSTANCE {
      /**

  /**
   * Returns a {@link ScheduledExecutorService} that never executes anything.
   *
   * <p>The {@code shutdownNow} method of the returned executor always returns an empty list despite
   * the fact that everything is still technically awaiting execution. The {@code getDelay} method
   * of any {@link ScheduledFuture} returned by the executor will always return the max long value
   * instead of the time until the user-specified delay.
   */

makes HTTP and HTTPS calls. It lets you specify which responses to return and
then verify that requests were made as expected.

Because it exercises your full HTTP stack, you can be confident that you're
testing everything. You can even copy & paste HTTP responses from your real web
server to create representative test cases. Or test that your code survives in
awkward-to-reproduce situations like 500 errors or slow-loading responses.

    }

    public void test_labelTypePattern_match_noPatterns() {
        LabelTypePattern pattern = new LabelTypePattern("test", null, null);

        // Should match everything when no patterns
        assertTrue(pattern.match("/any/path"));
        assertTrue(pattern.match("/test/path"));
    }

    public void test_labelTypePattern_match_multilinePaths() {

        return (GetCheckedTypeValidator) theClass.getEnumConstants()[0];
      } catch (ClassNotFoundException
          | RuntimeException
          | Error t) { // ensure we really catch *everything*
        return weakSetValidator();
      }
    }
  }

  // TODO(cpovirk): change parameter order to match other helper methods (Class, Throwable)?

@DoNotMock("Use ImmutableList.of or another implementation")
@GwtCompatible
@SuppressWarnings("serial") // we're overriding default serialization
// TODO(kevinb): I think we should push everything down to "BaseImmutableCollection" or something,
// just to do everything we can to emphasize the "practically an interface" nature of this class.
public abstract class ImmutableCollection<E> extends AbstractCollection<E> implements Serializable {
  /*

    .signedBy(intermediateCertificate)
    .build();
```

To serve this configuration the server needs to provide its clients with a chain of certificates
starting with its own and including everything up-to but not including the root. We don't need to
include root certificates because the client already has them.

```java
HandshakeCertificates serverHandshakeCertificates = new HandshakeCertificates.Builder()

      attempt = 0,
      tunnelRequest = tunnelRequest,
      connectionSpecIndex = -1,
      isTlsFallback = false,
    )
  }

  /**
   * Returns a request that creates a TLS tunnel via an HTTP proxy. Everything in the tunnel request
   * is sent unencrypted to the proxy server, so tunnels include only the minimum set of headers.
   * This avoids sending potentially sensitive data like HTTP cookies to the proxy unencrypted.
   *