@CollectionSize.Require(absent = ZERO)
  public void testKeySetIteratorRemove() {
    int initialSize = getNumElements();
    Iterator<K> iterator = getMap().keySet().iterator();
    iterator.next();
    iterator.remove();
    assertEquals(initialSize - 1, getMap().size());
    assertEquals(initialSize - 1, getMap().inverse().size());
  }

And it should have an `access_token`, with a string containing our access token.

For this simple example, we are going to just be completely insecure and return the same `username` as the token.

/// tip

In the next chapter, you will see a real secure implementation, with password hashing and <abbr title="JSON Web Tokens">JWT</abbr> tokens.

But for now, let's focus on the specific details we need.

///

    @Override
    public boolean hasNext() {
        if (line == EMPTY) {
            line = ReaderUtil.readLine(reader);
        }
        return line != null;
    }

    @Override
    public String next() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        final String result = line;
        line = EMPTY;
        return result;
    }

    @Override

 */
public class SmbComLogoffAndX extends AndXServerMessageBlock {

    /**
     * Creates a new SMB1 logoff request to end a user session.
     *
     * @param config the CIFS configuration
     * @param andx the next command in the AndX chain, or null
     */
    public SmbComLogoffAndX(final Configuration config, final ServerMessageBlock andx) {
        super(config, SMB_COM_LOGOFF_ANDX, andx);
    }

    @Override

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import static java.text.DateFormat.FULL;
import static java.text.DateFormat.LONG;
import static java.text.DateFormat.MEDIUM;
import static java.text.DateFormat.SHORT;
import static java.text.DateFormat.getDateInstance;
import static org.codelibs.core.collection.MultiIterator.iterable;

    Exception getException();

    /**
     * Sets an exception for this response.
     *
     * @param e the exception to set
     */
    void exception(Exception e);

    /**
     * Gets the next response in the chain.
     *
     * @return chained response
     */
    Response getNextResponse();

  }

  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  @CollectionSize.Require(ONE)
  public void testValuesIteratorRemove() {
    Iterator<V> valuesItr = multimap().values().iterator();
    valuesItr.next();
    valuesItr.remove();
    assertTrue(multimap().isEmpty());
  }

    assertThrows(
        ConcurrentModificationException.class,
        () -> {
          Iterator<E> iterator = collection.iterator();
          collection.clear();
          iterator.next();
        });
  }

    for (Iterator<Entry<K, V>> unfilteredItr = multimap.unfiltered().entries().iterator();
        unfilteredItr.hasNext(); ) {
      Entry<K, V> entry = unfilteredItr.next();
      if (entryPredicate.apply(entry) && Objects.equals(entry.getValue(), o)) {
        unfilteredItr.remove();
        return true;
      }
    }
    return false;
  }

  @Override

        Iterator iter = set.iterator();
        assertTrue(set.size() == 4, "Set size should be 4, is " + set.size());

        while (iter.hasNext()) {
            Artifact artifact = (Artifact) iter.next();
            System.out.println("Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion()
                    + " Optional=" + (artifact.isOptional() ? "true" : "false"));
            assertTrue(