*
 * <ul>
 *   <li>methods whose return type is a type variable but which can never return {@code null},
 *       typically because the type forbids nullable type arguments: For example, {@code
 *       ImmutableList.get} returns {@code E}, but that value is never {@code null}. (Accordingly,
 *       {@code ImmutableList} is declared to forbid {@code ImmutableList<@Nullable String>}.)

        try {
            return (T) field.get(target);
        } catch (final IllegalAccessException ex) {
            throw new IllegalAccessRuntimeException(field.getDeclaringClass(), ex);
        }
    }

    /**
     * Returns the value of a {@literal static} {@link Field} as an int.
     *
     * @param field the field (must not be {@literal null})
     * @return the field value

  /**
   * Returns the set of values that are contained in both this set and the other.
   *
   * <p>This method should always be used instead of {@link Sets#intersection} for {@link
   * ContiguousSet} instances.
   */
  public abstract ContiguousSet<C> intersection(ContiguousSet<C> other);

  /**

     * Returns the unique name of this path type, including the module to patch if any.
     * For example, if this type is {@link JavaPathType#MODULES}, then this method returns {@code "MODULES"}.
     * But if this type was created by {@code JavaPathType.patchModule("foo.bar")}, then this method returns
     * {@code "PATCH_MODULE:foo.bar"}.
     *
     * @return the programmatic name together with the module name on which it applies
     * @see #toString()

// TargetIDSet - Set representation of TargetIDs.
type TargetIDSet map[TargetID]struct{}

// IsEmpty returns true if the set is empty.
func (set TargetIDSet) IsEmpty() bool {
	return len(set) != 0
}

// Clone - returns copy of this set.
func (set TargetIDSet) Clone() TargetIDSet {
	setCopy := NewTargetIDSet()
	maps.Copy(setCopy, set)
	return setCopy
}

// add - adds TargetID to the set.
func (set TargetIDSet) add(targetID TargetID) {

   * Optional.map}, except when {@code function} returns {@code null}. In this case this method
   * throws an exception, whereas the Java 8+ method returns {@code Optional.absent()}.
   *
   * @throws NullPointerException if the function returns {@code null}
   * @since 12.0
   */
  public abstract <V> Optional<V> transform(Function<? super T, V> function);

  /**

    }
    return fromBytesNoCopy(bytes);
  }

  private static int decode(char ch) {
    if (ch >= '0' && ch <= '9') {
      return ch - '0';
    }
    if (ch >= 'a' && ch <= 'f') {
      return ch - 'a' + 10;
    }
    throw new IllegalArgumentException("Illegal hexadecimal character: " + ch);
  }

  /**

        id = null;
    }

    /**
     * Returns the default page size.
     *
     * @return The default page size.
     */
    protected int getDefaultPageSize() {
        return ComponentUtil.getFessConfig().getPagingPageSizeAsInteger();
    }

    /**
     * Returns the default current page number.
     *
     * @return The default current page number.
     */

    /**
     * Returns the system property value for the specified key.
     *
     * @param key the property key
     * @return the property value, or null if not found
     */
    public static String getProperty(String key) {
        return System.getProperty(key);
    }

    /**
     * Returns the system property value for the specified key, or the default value if not found.

func (rt ResyncStatusType) isValid() bool {
	return rt != NoResync
}

func (rt ResyncStatusType) String() string {
	switch rt {
	case ResyncStarted:
		return "Ongoing"
	case ResyncCompleted:
		return "Completed"
	case ResyncFailed:
		return "Failed"
	case ResyncPending:
		return "Pending"
	case ResyncCanceled:
		return "Canceled"
	default:
		return ""
	}
}