// security reasons anyway. Therefore, the FRQ.close() method provides a way to stop the thread
  // explicitly. This test checks that calling that method does allow an app's ClassLoader to be
  // gc'd even if there is a still a FinalizableReferenceQueue in a static field. (Setting the field
  // to null would also work, but only if there are no references to the FRQ anywhere else.)

	// These goroutines yield during local work, so that switching from
	// a blocked goroutine to other goroutines is profitable.
	// As a matter of fact, this benchmark still triggers some spinning in the mutex.
	m := NewDRWMutex(ds, "")
	var acc0, acc1 uint64
	b.SetParallelism(4)
	b.RunParallel(func(pb *testing.PB) {
		c := make(chan bool)
		var data [4 << 10]uint64

			}
		}(index, c)
	}

	// Wait until we have either
	//
	// a) received all refresh responses
	// b) received too many refreshed for quorum to be still possible
	// c) timed out
	//
	lockNotFound, lockRefreshed := 0, 0
	done := false

	for i := 0; i < len(restClnts); i++ {
		select {
		case refreshResult := <-ch:
			if refreshResult.offline {

        sv.setUpdated("20200710072412");
        target.getVersioning().addSnapshotVersion(sv);

        Metadata source = createMetadataFromArtifact(artifact);
        // nothing should be actually changed, but still merge returns true
        assertTrue(target.merge(source));

        // NOTE! Merge updates last updated to source
        assertEquals("20200921071745", source.getVersioning().getLastUpdated());

and it is possible to gradually move apps from Istio 1.0/1.1 to the new environments and
across environments ( for example canary -> prod )

Note: there are still some cluster roles that may need to be fixed, most likely cluster permissions
will need to move to the security component.

## Everything is Optional

        return;
      }

      /*
       * Almost everything in GWT is an AbstractFuture (which is as good as TrustedFuture under
       * GWT). But ImmediateFuture and UncheckedThrowingFuture aren't, so we still need this case.
       */
      try {
        forceSet(getDone(delegate));
      } catch (ExecutionException exception) {
        forceSetException(exception.getCause());

  //    it would just add an edge such that if done() observed non-null, then it would also
  //    definitely observe all earlier writes, but we still have no guarantee that done() would see
  //    the initial write (just stronger guarantees if it does).
  //
  // See: http://cs.oswego.edu/pipermail/concurrency-interest/2015-January/013800.html

		// - xl.meta for inlined objects has already read the data
		//   into memory, any mutation on xl.meta subsequently is
		//   inconsequential to the overall read operation.
		// - xl.meta metadata is still verified for quorum under lock()
		//   however writing the response doesn't need to serialize
		//   concurrent writers
		unlockOnDefer = true
		nsUnlocker = func() { lock.RUnlock(lkctx) }
	}

   * connections.
   */
  private fun retryRoute(connection: RealConnection): Route? {
    return connection.withLock {
      when {
        connection.routeFailureCount != 0 -> null

        // This route is still in use.
        !connection.noNewExchanges -> null

        !connection.route().address.url.canReuseConnectionFor(address.url) -> null

        else -> connection.route()
      }
    }
  }

    HashCode hashCodeA = HashCode.fromBytes(bytesA);
    HashCode hashCodeB = HashCode.fromBytes(bytesB);

    // They aren't equal...
    assertFalse(hashCodeA.equals(hashCodeB));

    // But they still have the same Object#hashCode() value.
    // Technically not a violation of the equals/hashCode contract, but...?
    assertEquals(hashCodeA.hashCode(), hashCodeB.hashCode());
  }