* Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param hostname The parameter value of hostname. (NotNull)
     */
    public void setHostname(String hostname) {
        registerVariable("hostname", hostname);
    }

    /**
     * Set the value of clustername, used in parameter comment. <br>

public final class HashMultiset<E extends @Nullable Object> extends AbstractMapBasedMultiset<E> {

  /** Creates a new, empty {@code HashMultiset} using the default initial capacity. */
  public static <E extends @Nullable Object> HashMultiset<E> create() {
    return new HashMultiset<>();
  }

  /**
   * Creates a new, empty {@code HashMultiset} with the specified expected number of distinct
   * elements.
   *

    //                                                                         ===========
    protected final ColumnInfo _columnCreatedBy = cci("createdBy", "createdBy", null, null, String.class, "createdBy", null, false, false,
            false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);

    @ValidateTypeFailure
    public Integer sortOrder;

    @Size(max = 1000)
    public String createdBy;

    @ValidateTypeFailure
    public Long createdTime;

    public void initialize() {
        crudMode = CrudMode.CREATE;
        boost = 1.0f;
        sortOrder = 0;
        createdBy = ComponentUtil.getSystemHelper().getUsername();
        createdTime = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();

            }
        }
        return webConfig;
    }

    @Override
    public String toString() {
        return "RequestHeader [webConfig=" + webConfig + ", createdBy=" + createdBy + ", createdTime=" + createdTime + ", name=" + name
                + ", updatedBy=" + updatedBy + ", updatedTime=" + updatedTime + ", value=" + value + ", webConfigId=" + webConfigId

        } else {
            super.addFieldToSource(sourceMap, field, value);
        }
    }

    @Override
    public String toString() {
        return "UserInfo [createdAt=" + createdAt + ", updatedAt=" + updatedAt + ", docMeta=" + docMeta + "]";
    }

    @Override
    public String getEventType() {
        return "user";
    }

// The following is the test flow.
// 1. Create bucket.
// 2. Insert Object.
// 3. Use "X-Amz-Copy-Source" header to copy the previously created object.
// 4. Validate the content of copied object.
func (s *TestSuiteCommon) TestCopyObject(c *check) {
	// generate a random bucket name.
	bucketName := getRandomBucketName()
	// HTTP request to create the bucket.

            Cell r = new Cell(x); // Optimistically create
            if (busy == 0 && casBusy()) {
              boolean created = false;
              try { // Recheck under lock
                Cell[] rs;
                int m, j;
                if ((rs = cells) != null && (m = rs.length) > 0 && rs[j = (m - 1) & h] == null) {
                  rs[j] = r;
                  created = true;
                }
              } finally {

/** Never actually created; instead delegates to JdkBackedImmutableMultiset. */
@ElementTypesAreNonnullByDefault
class RegularImmutableMultiset<E> extends ImmutableMultiset<E> {
  static final ImmutableMultiset<Object> EMPTY =
      JdkBackedImmutableMultiset.create(ImmutableList.of());

  RegularImmutableMultiset() {}

  static <E> ImmutableMultiset<E> create(Collection<? extends Entry<? extends E>> entries) {

{!> ../../docs_src/body_updates/tutorial002.py!}
```

////

/// tip

You can actually use this same technique with an HTTP `PUT` operation.

But the example here uses `PATCH` because it was created for these use cases.

///

/// note

Notice that the input model is still validated.