## Changelog since v1.21.5

## Changes by Kind

### API Change

- Kube-apiserver: Fixes handling of CRD schemas containing literal null values in enums (#104989, @liggitt) [SIG API Machinery, Apps and Network]

### Feature

- Kubernetes is now built with Golang 1.16.9 (#105672, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]

   * com.google.common.collect.testing.testers.AbstractListTester AbstractListTester}, a call to
   * {@code expectContents()} invokes this version</strong>.
   *
   * @param expected expected value of {@link #container}
   */
  /*
   * TODO: improve this and other implementations and move out of this framework
   * for wider use
   *

    public boolean available() {
        return available;
    }

    @Override
    public void destroy() {
        available = false;
        for (final ComponentHolder<?> componentHolder : singletonMap.values()) {
            try {
                componentHolder.destroy();
            } catch (final Exception e) {
                logger.warn("Failed to destroy " + componentHolder.get(), e);
            }
        }

                SecureKeyManager.secureWipe(keyCopy);
            }
        }
    }

    private static byte[] longToBytes(final long value) {
        final byte[] bytes = new byte[8];
        for (int i = 0; i < 8; i++) {
            bytes[i] = (byte) (value >>> 8 * (7 - i));
        }
        return bytes;
    }

    /**
     * Check if key rotation is needed based on configurable usage limits

   */
  @IgnoreJRERequirement // Users will use this only if they're already using Stream.
  public void writeLines(Stream<? extends CharSequence> lines) throws IOException {
    writeLines(lines, LINE_SEPARATOR.value());
  }

  /**
   * Writes the given lines of text to this sink with each line (including the last) terminated with
   * the given line separator.
   *

        // MockitoExtension handles mock initialization
        // Type1Message.getDefaultWorkstation() is static, so we can't easily mock it without PowerMock.
        // We will proceed assuming it returns a predictable value or handle it as is.
    }

    @Test
    void testConstructor_withSigning() {
        // Test constructor when signing is enabled
        NtlmContext context = new NtlmContext(mockAuth, true);

        assertThrows(IOException.class, () -> {
            ASN1Util.readTagNumber(s, 0x1F);
        });
    }

    @Test
    void testReadTagNumber_EOF() {
        // EOF inside tag value
        InputStream s = new ByteArrayInputStream(new byte[] {});
        assertThrows(EOFException.class, () -> {
            ASN1Util.readTagNumber(s, 0x1F);
        });
    }

    // --- readLength ---

        synchronized (this.sidCache) {
            try (DcerpcHandle handle = DcerpcHandle.getHandle("ncacn_np:" + server + "[\\PIPE\\lsarpc]", tc)) {
                // NetApp doesn't like the 'generic' access mask values
                try (LsaPolicyHandle policyHandle = new LsaPolicyHandle(handle, null, 0x00000001)) {
                    rpc = new MsrpcQueryInformationPolicy(policyHandle, (short) lsarpc.POLICY_INFO_ACCOUNT_DOMAIN, info);

        verify(info, times(1)).clear();
        assertTrue(result.isEmpty(), "List should be cleared");
    }

    // Parameterized test to exercise SMB2 with different recursive and filter values
    @ParameterizedTest(name = "SMB2 param: recursive={0}, filter={1}")
    @CsvSource({ "true, 0", "false, -1" })
    @DisplayName("watch() SMB2 parameterized branches execute without error")

        Configuration mockConfig = mock(Configuration.class);
        Smb2TreeDisconnectRequest request = new Smb2TreeDisconnectRequest(mockConfig);
        byte[] buffer = new byte[256];
        // Fill with non-zero values first
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) 0xFF;
        }

        // When
        request.writeBytesWireFormat(buffer, 10);