if (ownerType == null) {
      return newParameterizedType(rawType, arguments);
    }
    // ParameterizedTypeImpl constructor already checks, but we want to throw NPE before IAE
    checkNotNull(arguments);
    checkArgument(rawType.getEnclosingClass() != null, "Owner type for unenclosed %s", rawType);
    return new ParameterizedTypeImpl(ownerType, rawType, arguments);
  }

        // Set the deferred field directly since it's a public field
        mockNdrBuffer.deferred = mockDeferredNdrBuffer;
        // Set up deferred buffer chain to avoid NPE
        mockDeferredNdrBuffer.deferred = mockDeferredNdrBuffer; // Self-reference to avoid NPE
        lenient().when(mockNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);
        lenient().when(mockDeferredNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);

   * nulls as long as the *last* element is *not* null.
   *
   * (To "go out of its way," the method tracks a `set` bit so that it can distinguish "the final
   * split has a last element of null, so throw NPE" from "the final split was empty, so look for an
   * element in the prior one.")
   */
  public static <T> java.util.Optional<T> findLast(Stream<T> stream) {
    final class OptionalState {
      boolean set = false;

      boolean changed = false;
      Iterator<Map<C, V>> iterator = backingMap.values().iterator();
      while (iterator.hasNext()) {
        Map<C, V> map = iterator.next();
        // map.keySet().removeAll(c) can throw a NPE when map is a TreeMap with
        // natural ordering and c contains a null.
        if (Iterators.removeAll(map.keySet().iterator(), c)) {
          changed = true;
          if (map.isEmpty()) {

    public boolean hasNext() {
      while (!checkNotNull(iterator).hasNext()) {
        // this weird checkNotNull positioning appears required by our tests, which expect
        // both hasNext and next to throw NPE if an input iterator is null.

        topMetaIterator = getTopMetaIterator();
        if (topMetaIterator == null) {
          return false;
        }

        iterator = topMetaIterator.next();

- Fix CVE-2020-8555 for Gluster client connections. ([#97922](https://github.com/kubernetes/kubernetes/pull/97922), [@liggitt](https://github.com/liggitt)) [SIG Storage]
- Fix NPE in ephemeral storage eviction ([#98261](https://github.com/kubernetes/kubernetes/pull/98261), [@wzshiming](https://github.com/wzshiming)) [SIG Node]