public void testClear() {
    getMap().clear();
    assertTrue("After clear(), a map should be empty.", getMap().isEmpty());
    assertEquals(0, getMap().size());
    assertFalse(getMap().entrySet().iterator().hasNext());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_REMOVE})
  @CollectionSize.Require(SEVERAL)
  public void testClearConcurrentWithEntrySetIteration() {
    assertThrows(

Removing individual items can be done using the urls iterator.
This would be typical after a user initiates a force refresh by a pull to refresh type action.

```java
    val urlIterator = cache.urls()
    while (urlIterator.hasNext()) {
      if (urlIterator.next().startsWith("https://www.google.com/")) {
        urlIterator.remove()
      }
    }
```

### Troubleshooting

1. Valid cacheable responses are not being cached

        SmbTransport conn;

        synchronized (CONNECTIONS) {
            if (SSN_LIMIT != 1) {
                final ListIterator iter = CONNECTIONS.listIterator();
                while (iter.hasNext()) {
                    conn = (SmbTransport) iter.next();
                    if (conn.matches(address, port, localAddr, localPort, hostName)
                            && (SSN_LIMIT == 0 || conn.sessions.size() < SSN_LIMIT)) {

   *
   * @since 7.0
   */
  protected @Nullable V standardRemove(@Nullable Object key) {
    Iterator<Entry<K, V>> entryIterator = entrySet().iterator();
    while (entryIterator.hasNext()) {
      Entry<K, V> entry = entryIterator.next();
      if (Objects.equals(entry.getKey(), key)) {
        V value = entry.getValue();
        entryIterator.remove();
        return value;
      }
    }

         * the association between the artifacts of the same project.
         */
        for (Iterator<? extends Metadata> it = metadatas.iterator(); it.hasNext(); ) {
            Metadata metadata = it.next();
            if (metadata instanceof VersionsMetadata versionsMetadata) {
                it.remove();

    val i: Iterator<String> = cache.urls()
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlA.toString())
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlB.toString())
    assertThat(i.hasNext()).isTrue()
    assertThat(i.next()).isEqualTo(urlC.toString())

    // ... and nothing else.
    assertThat(i.hasNext()).isFalse()
    assertFailsWith<NoSuchElementException> {

          for (v in value) {
            toDer(writer, v)
          }
        }

        override fun decode(reader: DerReader): List<T> {
          val result = mutableListOf<T>()
          while (reader.hasNext()) {
            result += fromDer(reader)
          }
          return result
        }
      }

    return BasicDerAdapter(name, tagClass, tag, codec)
  }

         * the association between the artifacts of the same project.
         */
        for (Iterator<? extends Metadata> it = metadatas.iterator(); it.hasNext(); ) {
            Metadata metadata = it.next();
            if (metadata instanceof PluginsMetadata pluginsMetadata) {
                it.remove();

          current.section + 0x80,
          current.sourceCodePoint1,
          current.type,
          current.mappedTo,
        )
    } else {
      result += current
      current = if (i.hasNext()) i.next() else break
    }
  }

  return result
}

/** Returns a copy of [mappings] with adjacent ranges merged wherever possible. */

            while (list.size < members.size) {
              val member = members[list.size]
              list += member.fromDer(reader)
            }

            if (reader.hasNext()) {
              throw ProtocolException("unexpected ${reader.peekHeader()} at $reader")
            }

            return@withTypeHint construct(list)
          }
        }

        override fun encode(