}
    assertEquals(expected, builder.toString());
    assertFullyRead(reader);

    // read all to one CharBuffer
    reader = new CharSequenceReader(charSequence);
    CharBuffer buf2 = CharBuffer.allocate(expected.length());
    assertEquals(expected.length() == 0 ? -1 : expected.length(), reader.read(buf2));
    Java8Compatibility.flip(buf2);
    assertEquals(expected, buf2.toString());
    assertFullyRead(reader);

                artifact.toString());
    }

    @Test
    void testToStringNullGroupId() {
        artifact.setGroupId(null);
        assertEquals(artifactId + ":" + type + ":" + classifier + ":" + version + ":" + scope, artifact.toString());
    }

    @Test
    void testToStringNullClassifier() {

    val properties = propertiesSupplier.get()
    for (p in properties) {
        when (jvmSignature) {
            p.fieldSignature?.toString() -> return predicate.match(p)
            p.getterSignature?.toString() -> return predicate.match(p.getter)
            p.setterSignature?.toString() -> return p.setter?.let { predicate.match(it) } ?: false
        }
    }
    return false
}

interface AttributePredicate {

    }

  fun addHeader(
    name: String,
    value: Any,
  ) = apply {
    headersBuilder.add(name, value.toString())
  }

  fun addHeaderLenient(
    name: String,
    value: Any,
  ) = apply {
    addHeaderLenient(headersBuilder, name, value.toString())
  }

  fun setHeader(
    name: String,
    value: Any,
  ) = apply {
    removeHeader(name)

    @Override
    public int hashCode() {
      assertTrue(Thread.holdsLock(mutex));
      return super.hashCode();
    }

    @Override
    public String toString() {
      assertTrue(Thread.holdsLock(mutex));
      return super.toString();
    }

    private static final long serialVersionUID = 0;
  }

  /*
   * This is somewhat of a weak test; we verify that all of the methods are

    assertThat(graph.edgeValueOrDefault(4, 4, DEFAULT)).isEqualTo("valueD");

    String toString = graph.toString();
    assertThat(toString).contains("valueA");
    assertThat(toString).contains("valueB");
    assertThat(toString).contains("valueC");
    assertThat(toString).contains("valueD");
  }

  @Test
  public void undirectedGraph() {

    assertEquals("[foo x 2, bar]", multiset.toString());
  }

  public void testCreateWithSize() {
    Multiset<String> multiset = LinkedHashMultiset.create(50);
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
    assertEquals("[foo x 2, bar]", multiset.toString());
  }

  public void testCreateFromIterable() {

    StringBuilder builder = new StringBuilder(array.length * 5);
    builder.append(toString(array[0]));
    for (int i = 1; i < array.length; i++) {
      builder.append(separator).append(toString(array[i]));
    }
    return builder.toString();
  }

  /**
   * Returns a comparator that compares two arrays of unsigned {@code long} values <a

        MavenProperties sp = new MavenProperties(false);
        if (Files.exists(path)) {
            sp.load(path);
        }
        properties.forEach(
                (k, v) -> sp.put(k.toString(), escape ? DefaultInterpolator.escape(v.toString()) : v.toString()));
        loadIncludes(path, sp, callback);
        substitute(sp, callback);
        sp.forEach(properties::setProperty);
    }

        return this;
    }

    public boolean isResolveTransitively() {
        return resolveTransitively;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder()
                .append("REQUEST: ")
                .append(LS)
                .append("artifact: ")
                .append(artifact)