*
   * <p><b>Warning:</b> this method silently converts checked exceptions to unchecked exceptions,
   * and should not be used with cache loaders which throw checked exceptions. In such cases use
   * {@link #get} instead.
   *
   * @throws UncheckedExecutionException if an exception was thrown while loading the value. (As
   *     explained in the last paragraph above, this should be an unchecked exception only.)

    }

    /**
     * Dispatches all listeners {@linkplain #enqueue enqueued} prior to this call, serially and in
     * order.
     */
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    void dispatch() {
      boolean scheduleEventRunner = false;
      synchronized (this) {
        if (!isThreadScheduled) {
          isThreadScheduled = true;
          scheduleEventRunner = true;

     * Indicates whether remote repositories should be re-checked for updated artifacts/metadata regardless of their
     * configured update policy.
     *
     * @return {@code true} if remote repositories should be re-checked for updated artifacts/metadata, {@code false}
     *         otherwise.
     */
    boolean isForceUpdate();

    /**
     * Enables/disabled forced checks for updated artifacts/metadata on remote repositories.
     *

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;

/** Static utility method for unchecked throwing of any {@link Throwable}. */
@GwtCompatible
final class SneakyThrows<T extends Throwable> {
  /**
   * Throws {@code t} as if it were an unchecked {@link Throwable}.
   *
   * <p>This method is useful primarily when we make a reflective call to a method with no {@code

{
  "upstream": "elastic/elasticsearch",
  "targetBranchChoices": [
    { "name": "master", "checked": true },
    { "name": "7.x", "checked": true },
    "7.15",
    "7.14",
    "6.8"
  ],
  "targetPRLabels": ["backport"],
  "branchLabelMapping": {
    "^v8.0.0$": "master",
    "^v7.16.0$": "7.x",
    "^v(\\d+).(\\d+).\\d+$": "$1.$2"
  }

 *   {@literal @Override} public int hashCode() {...}
 *   ...
 * }
 * </pre>
 *
 * <p>No cascading checks are performed against the return values of methods unless the method is a
 * static factory method. Neither are semantics of mutation methods such as {@code
 * someList.add(obj)} checked. For more detailed discussion of supported and unsupported cases, see
 * {@link #testEquals}, {@link #testNulls} and {@link #testSerializable}.

   *       exceptions).
   * </ul>
   *
   * <p>The overall principle is to continue to treat every checked exception as a checked
   * exception, every unchecked exception as an unchecked exception, and every error as an error. In
   * addition, the cause of any {@code ExecutionException} is wrapped in order to ensure that the

    public T get() {
      // A 2-field variant of Double Checked Locking.
      if (!initialized) {
        synchronized (lock) {
          if (!initialized) {
            T t = delegate.get();
            value = t;
            initialized = true;
            return t;
          }
        }
      }
      // This is safe because we checked `initialized`.
      return uncheckedCastNullableTToT(value);
    }

   * IOException}, {@code RuntimeException}, {@code Error} or a checked exception of the given type.
   * Otherwise, it will be rethrown wrapped in a {@code RuntimeException}. <b>Note:</b> Be sure to
   * declare all of the checked exception types your try block can throw when calling an overload of
   * this method so as to avoid losing the original exception type.
   *

    }

    /**
     * Dispatches all listeners {@linkplain #enqueue enqueued} prior to this call, serially and in
     * order.
     */
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    void dispatch() {
      boolean scheduleEventRunner = false;
      synchronized (this) {
        if (!isThreadScheduled) {
          isThreadScheduled = true;
          scheduleEventRunner = true;