ImmutableMultiset.Builder<String> builder = ImmutableMultiset.builder();
    builder.addCopies("a", 2);
    builder.add("b");
    builder.add("c");
    builder.setCount("b", 0);
    ImmutableMultiset<String> multiset = builder.build();
    assertThat(multiset.elementSet()).containsExactly("a", "c").inOrder();
    builder.add("b");

      ImmutableList.Builder<String> builder = ImmutableList.builder();
      assertThrows(NullPointerException.class, () -> builder.addAll((Iterable<String>) null));
    }

    {
      ImmutableList.Builder<String> builder = ImmutableList.builder();
      assertThrows(NullPointerException.class, () -> builder.addAll((Iterator<String>) null));
    }

    {
      ImmutableList.Builder<String> builder = ImmutableList.builder();

class CertificatePinnerTest {
  @Test
  fun malformedPin() {
    val builder = CertificatePinner.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.add("example.com", "md5/DmxUShsZuNiqPQsX2Oi9uv2sCnw=")
    }
  }

  @Test
  fun malformedBase64() {
    val builder = CertificatePinner.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.add("example.com", "sha1/DmxUShsZuNiqPQsX2Oi9uv2sCnw*")
    }
  }

  }

  public static <K, V> Builder<K, V> builder() {
    return new Builder<K, V>();
  }

  public static final class Builder<K, V> extends ImmutableMap.Builder<K, V> {

    public Builder() {}

    Builder(int initCapacity) {
      super(initCapacity);
    }

    @CanIgnoreReturnValue
    @Override
    public Builder<K, V> put(K key, V value) {
      super.put(key, value);

      if (c != '\t' && c != '\n' && c != '\r') {
        builder.addEscape(c, "\uFFFD");
      }
    }

    // Build the content escaper first and then add quote escaping for the
    // general escaper.
    builder.addEscape('&', "&");
    builder.addEscape('<', "&lt;");
    builder.addEscape('>', "&gt;");
    XML_CONTENT_ESCAPER = builder.build();
    builder.addEscape('\'', "&apos;");
    builder.addEscape('"', "&quot;");

  @Test
  fun emptyNameForbidden() {
    val builder = Request.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.header("", "Value")
    }
    assertFailsWith<IllegalArgumentException> {
      builder.addHeader("", "Value")
    }
  }

  @Test
  fun headerAllowsTabOnlyInValues() {
    val builder = Request.Builder()
    builder.header("key", "sample\tvalue")

    unused = builder.build(); // this is *also* allowed
  }

  public void testBuildMutate() {
    ThreadFactory factory1 = builder.setPriority(1).build();
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());

    builder.setPriority(2); // change the state of the builder
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());
  }

  /** Constructs a graph with the properties specified in {@code builder}. */
  StandardNetwork(NetworkBuilder<? super N, ? super E> builder) {
    this(
        builder,
        builder.nodeOrder.<N, NetworkConnections<N, E>>createMap(
            builder.expectedNodeCount.or(DEFAULT_NODE_COUNT)),
        builder.edgeOrder.<E, N>createMap(builder.expectedEdgeCount.or(DEFAULT_EDGE_COUNT)));
  }

  /**

  /** Constructs a graph with the properties specified in {@code builder}. */
  StandardNetwork(NetworkBuilder<? super N, ? super E> builder) {
    this(
        builder,
        builder.nodeOrder.<N, NetworkConnections<N, E>>createMap(
            builder.expectedNodeCount.or(DEFAULT_NODE_COUNT)),
        builder.edgeOrder.<E, N>createMap(builder.expectedEdgeCount.or(DEFAULT_EDGE_COUNT)));
  }

  /**

    assertThrows(IllegalArgumentException.class, () -> builder.addCopies("a", -2));
  }

  public void testBuilderSetCountHandlesNullsCorrectly() {
    ImmutableSortedMultiset.Builder<String> builder =
        new ImmutableSortedMultiset.Builder<>(Ordering.natural().nullsFirst());
    assertThrows(NullPointerException.class, () -> builder.setCount(null, 2));
  }