// safely publish these objects and we won't need this whole discussion.
  // TODO(user,lukes): consider adding volatile to all these fields since in current known JVMs
  // that should resolve the issue. This comes at the cost of adding more write barriers to the
  // implementations.

  private Futures() {}

  /**

   *     the {@link ExecutionException} thrown by {@link Future#get()} on the {@link Future}
   *     underlying this step or, if {@code get()} throws a different kind of exception, that
   *     exception itself. To avoid hiding bugs and other unrecoverable errors, callers should
   *     prefer more specific types, avoiding {@code Throwable.class} in particular.

* Adding lock files for kubeconfig updating ([#28034](https://github.com/kubernetes/kubernetes/pull/28034), [@krousey](https://github.com/krousey))
* federation service controller: fixing the logic to update DNS records ([#27999](https://github.com/kubernetes/kubernetes/pull/27999), [@quinton-hoole](https://github.com/quinton-hoole))

    }
    assertWithMessage("table size after adding %s elements", size)
        .that(bucketsOf(map1))
        .isEqualTo(initialBuckets);

    /*
     * Something slightly different happens when the entries are added all at
     * once; make sure that passes too.
     */
    map2.putAll(map1);
    assertWithMessage("table size after adding %s elements", size)
        .that(bucketsOf(map1))

   * the other.
   *
   * <p>The resulting multimap's views have iterators that don't support {@code remove()}, but all
   * other methods are supported by the multimap and its views. When adding a key that doesn't
   * satisfy the predicate, the multimap's {@code put()}, {@code putAll()}, and {@code
   * replaceValues()} methods throw an {@link IllegalArgumentException}.
   *

    }
    assertWithMessage("table size after adding %s elements", size)
        .that(bucketsOf(map1))
        .isEqualTo(initialBuckets);

    /*
     * Something slightly different happens when the entries are added all at
     * once; make sure that passes too.
     */
    map2.putAll(map1);
    assertWithMessage("table size after adding %s elements", size)
        .that(bucketsOf(map1))

 * <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

 * <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

 *  New: Add multiple path segments using a single string in `HttpUrl.Builder`.
 *  New: Support SHA-256 pins in certificate pinner.


## Version 3.1.2

_2016-02-10_

 *  Fix: Don’t crash when finding the trust manager on Robolectric. We attempted
    to detect the host platform and got confused because Robolectric looks like
    Android but isn’t!
 *  Fix: Change `CertificatePinner` to skip sanitizing the certificate chain

            logger.debug("URL conversion: original={}, converted={}", attrValue, u);
        }
        if (StringUtil.isNotBlank(u)) {
            if (logger.isDebugEnabled()) {
                logger.debug("Adding child URL: url={}", u);
            }
            urlList.add(u);
        } else if (logger.isDebugEnabled()) {
            logger.debug("Skipping child URL: url={}", u);
        }
    }

    /**