* {@code Math.addExact(a, b)} will call the {@link Math#addExact(int, int)} overload, not {@link
   * Math#addExact(long, long)}. Also note that adding two {@code int} values can <b>never</b>
   * overflow a {@code long}, so you can just write {@code (long) a + b}.
   *
   * @throws ArithmeticException if {@code a + b} overflows in signed {@code long} arithmetic
   */

 * <p>This class should be used by other collection classes only.
 *
 * @author Mike Bostock
 * @author Jared Levy
 */
@J2ktIncompatible
@GwtCompatible
/*
 * I have decided not to bother adding @ParametricNullness annotations in this class. Adding them is
 * a lot of busy work, and the annotation matters only when the APIs to be annotated are visible to
 * Kotlin code. In this class, nothing is publicly visible (nor exposed indirectly through a

   * other using {@code second = new StatsAccumulator().addAll(first).snapshot()}, if both were
   * obtained by calling {@code snapshot()} on the same {@link StatsAccumulator} without adding any
   * values in between the two calls, or if one is obtained from the other after round-tripping
   * through java serialization. However, floating point rounding errors mean that it may be false

				"application/vnd.mozilla.xul+xml",
				"application/vnd.ms-artgalry",
				"application/vnd.ms-asf",
				"application/vnd.ms-cab-compressed",
				"application/vnd.ms-excel",
				"application/vnd.ms-excel.addin.macroenabled.12",
				"application/vnd.ms-excel.sheet.macroenabled.12",
				"application/vnd.ms-excel.sheet.binary.macroenabled.12",
				"application/vnd.ms-fontobject",
				"application/vnd.ms-htmlhelp",

* Improve Azure instance metadata handling by adding caches. ([#70353](https://github.com/kubernetes/kubernetes/pull/70353), [@feiskyer](https://github.com/feiskyer))
* adding cn-northwest-1 for AWS China Ningxia region ([#70155](https://github.com/kubernetes/kubernetes/pull/70155), [@pahud](https://github.com/pahud))

      while (valueReferenceQueue.poll() != null) {}
    }

    // recency queue, shared by expiration and eviction

    /**
     * Records the relative order in which this read was performed by adding {@code entry} to the
     * recency queue. At write-time, or when the queue is full past the threshold, the queue will be
     * drained and the entries therein processed.
     *

        if (result[0] == 0) {
          distinctElements++;
        }
        this.totalCount += count;
        return (right.height == initHeight) ? this : rebalance();
      }

      // adding count to me!  No rebalance possible.
      result[0] = elemCount;
      long resultCount = (long) elemCount + count;
      checkArgument(resultCount <= Integer.MAX_VALUE);
      this.elemCount += count;

        if (tc.getConfig().isDfsConvertToFQDN()) {
            dri.fixupHost(server);
        }

        if (log.isDebugEnabled()) {
            log.debug("Adding key " + key + " to " + dr);
        }

        /*
         * Subtract the server and share from the pathConsumed so that
         * it reflects the part of the relative path consumed and not

### ConfigMap
* Volumes and environment variables populated from ConfigMap and Secret objects can now tolerate the named source object or specific keys being missing, by adding `optional: true` to the volume or environment variable source specifications. ([#39981](https://github.com/kubernetes/kubernetes/pull/39981), [@fraenkel](https://github.com/fraenkel))

                    CIInfo ci = context.invokerRequest.ciInfo().get();
                    context.logger.info(
                            "Making this build non-interactive, because CI detected. Disable this detection by adding --force-interactive.");
                    context.logger.info("Detected CI system: '" + ci.name() + "': " + ci.message());
                    return false;
                }
            }
        }