* kubelets are no longer allowed to delete their own Node API object. Prior to 1.11, in rare circumstances related to cloudprovider node ID changes, kubelets would attempt to delete/recreate their Node object at startup. Kubelets older than 1.11 are not supported running against a v1.13+ API server. If an unsupported legacy kubelet encounters this situation, a cluster admin can remove the Node object: ([#71021](https://github.com/kubernetes/kubernetes/pull/71021), [@liggitt](htt...

   * @param processor the object to which to pass the bytes of the stream
   * @return the result of the byte processor
   * @throws IOException if an I/O error occurs
   * @since 14.0
   */
  @CanIgnoreReturnValue // some processors won't return a useful result
  @ParametricNullness
  @J2ktIncompatible
  public static <T extends @Nullable Object> T readBytes(

   * who already know that addr is an array of length 4 or 16.
   *
   * @param addr the raw 4-byte or 16-byte IP address in big-endian order
   * @return an InetAddress object created from the raw IP address
   */
  private static InetAddress bytesToInetAddress(byte[] addr, @Nullable String scope) {
    try {
      InetAddress address = InetAddress.getByAddress(addr);

    * installed StorageClass API object. Alternatively, administrators may choose to
    * keep the automatically installed StorageClass and only disable the defaulting
    * behavior by removing the "is-default-class" annotation from the StorageClass
    * API object.

		if _, ok := policies[v.Name]; !ok {
			policies[v.Name] = defaultPolicyDoc(v.Definition)
		}
	}
}

// LoadIAMCache reads all IAM items and populates a new iamCache object and
// replaces the in-memory cache object.
func (store *IAMStoreSys) LoadIAMCache(ctx context.Context, firstTime bool) error {
	bootstrapTraceMsgFirstTime := func(s string) {
		if firstTime {
			bootstrapTraceMsg(s)
		}
	}

We are going to start from where we left in the previous chapter and increment it.

## About JWT { #about-jwt }

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
```

        assertNotNull(lmhosts.getByName(longHostname, mockContext));
    }

    @Test
    void testGetByNameWithName() {
        // Test the internal getByName method that takes a Name object
        Name name = new Name(mockConfig, "TESTHOST", 0x20, null);
        when(mockConfig.getLmHostsFileName()).thenReturn(null);

        NbtAddress result = lmhosts.getByName(name, mockContext);

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

                        logger.warn("Failed to write {} to response.", id, e);
                    }
                });
    }

    private static StringBuilder appendJson(final String field, final Object value, final StringBuilder buf) {
        buf.append('"').append(StringEscapeUtils.escapeJson(field)).append('"').append(':');
        if (value == null) {
            buf.append("null");