public void testAddAtIndex_nullSupported() {
    getList().add(0, null);
    expectAdded(0, (E) null);
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  @CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)
  public void testAddAtIndex_nullUnsupported() {
    assertThrows(NullPointerException.class, () -> getList().add(0, null));
    expectUnchanged();

    // Check cache. We use == on purpose because it's cheaper and a cache miss is ok.
    if (entry != null && entry.getKey() == key) {
      return entry.getValue();
    }
    return null;
  }

  void clearCache() {
    cacheEntry = null;
  }

./mc mb -l myminio/versioned

./mc mirror internal myminio/versioned/ --quiet >/dev/null

## Soft delete (creates delete markers)
./mc rm -r --force myminio/versioned >/dev/null

## mirror again to create another set of version on top
./mc mirror internal myminio/versioned/ --quiet >/dev/null

expected_checksum=$(./mc cat internal/dsync/drwmutex.go | md5sum)

        encPart.add(new DERTaggedObject(true, 2, new DEROctetString(encryptedData)));
        v.add(new DERTaggedObject(true, 3, new DERSequence(encPart)));

        if (unknownTag != null) {
            v.add(new DERTaggedObject(true, unknownTag, new DERGeneralString("unknown")));
        }

        return new DERSequence(v).getEncoded();
    }

    /**

                    String name =
                            b.getOriginalKey() != null && b.getOriginalKey().getQualifier() instanceof String s
                                    ? s
                                    : "";
                    map.compute(name, (n, ob) -> ob == null || comparator.compare(ob, b) < 0 ? b : ob);
                }

            assertArrayEquals(testSalt, Arrays.copyOfRange(buffer, 6, 14));
        }

        @Test
        @DisplayName("Should encode with null values")
        void testEncodeWithNullValues() {
            // Arrange
            context = new PreauthIntegrityNegotiateContext(mockConfig, null, null);
            byte[] buffer = new byte[100];

            // Act
            int encodedSize = context.encode(buffer, 0);

   * `heldCertificate` is null.
   */
  @JvmStatic
  fun newKeyManager(
    keyStoreType: String?,
    heldCertificate: HeldCertificate?,
    vararg intermediates: X509Certificate,
  ): X509KeyManager {
    val keyStore = newEmptyKeyStore(keyStoreType)
    if (heldCertificate != null) {
      val chain = arrayOfNulls<Certificate>(1 + intermediates.size)

     * it returns a subclass of Joiner that overrides this method to tolerate null inputs.
     *
     * Unfortunately, we don't distinguish between these two cases in our public API: Joiner.on(...)
     * and Joiner.on(...).useForNull(...) both declare the same return type: plain Joiner. To ensure
     * that users *can* pass null arguments to Joiner, we annotate it as if it always tolerates null
     * inputs, rather than as if it never tolerates them.
     *

        return actionClass;
    }

    /**
     * Overrides fillInStackTrace to return null for performance optimization.
     * This prevents stack trace generation for this exception type.
     *
     * @return null to skip stack trace generation
     */
    @Override
    public synchronized Throwable fillInStackTrace() {
        return null;
    }

     *
     * @param model The model whose build plugin configuration should be expanded, must not be <code>null</code>.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    void expandPluginConfiguration(Model model, ModelBuildingRequest request, ModelProblemCollector problems);