/**
   * This classloader disallows {@link java.lang.invoke.VarHandle}, {@link sun.misc.Unsafe} and
   * {@link AtomicReferenceFieldUpdater}, which will prevent us from selecting the {@code
   * AtomicReferenceFieldUpdaterAtomicHelper} strategy.
   */
  private static final ClassLoader NO_ATOMIC_REFERENCE_FIELD_UPDATER =
      getClassLoader(
          ImmutableSet.of(
              "java.lang.invoke.VarHandle",