w = addToStringField(sb, prefix, o -> !o.isEmpty(), "prefix", w);
                w = addToStringField(sb, namespaceUri, o -> !o.isEmpty(), "namespaceUri", w);
                w = addToStringField(sb, name, o -> !o.isEmpty(), "name", w);
                w = addToStringField(sb, value, o -> !o.isEmpty(), "value", w);
                w = addToStringField(sb, attributes, o -> !o.isEmpty(), "attributes", w);

        rangeMap.put(range1, 1);
        rangeMap.put(range2, 2);

        Range<Integer> expected;
        if (range1.isEmpty()) {
          if (range2.isEmpty()) {
            expected = null;
          } else {
            expected = range2;
          }
        } else {
          if (range2.isEmpty()) {
            expected = range1;
          } else {
            expected = range1.span(range2);
          }

  }

  /**
   * Returns {@code true} if {@code rowKeyList().size == 0} or {@code columnKeyList().size() == 0}.
   */
  @Override
  public boolean isEmpty() {
    return rowList.isEmpty() || columnList.isEmpty();
  }

  /**
   * {@inheritDoc}
   *
   * @throws IllegalArgumentException if {@code rowKey} is not in {@link #rowKeySet()} or {@code

        if (!tags.isEmpty()) {
            filterList.add(buildFilterQuery(FieldNames.TAGS, tags));
        }

        roles.add(SuggestConstants.DEFAULT_ROLE);
        if (!roles.isEmpty()) {
            filterList.add(buildFilterQuery(FieldNames.ROLES, roles));
        }

        if (!fields.isEmpty()) {
            filterList.add(buildFilterQuery(FieldNames.FIELDS, fields));

    return Maps.immutableEntry(key, value);
  }

  private void assertMapSize(Map<?, ?> map, int size) {
    assertThat(map).hasSize(size);
    if (size > 0) {
      assertThat(map.isEmpty()).isFalse();
    } else {
      assertThat(map.isEmpty()).isTrue();
    }
    assertCollectionSize(map.keySet(), size);
    assertCollectionSize(map.entrySet(), size);
    assertCollectionSize(map.values(), size);
  }

    assertThat(ClassPath.getClassPathFromManifest(new File("some.jar"), null)).isEmpty();
  }

  public void testGetClassPathFromManifest_noClassPath() throws IOException {
    File jarFile = new File("base.jar");
    assertThat(ClassPath.getClassPathFromManifest(jarFile, manifest(""))).isEmpty();
  }

  public void testGetClassPathFromManifest_emptyClassPath() throws IOException {

    assertThat(a.eventSequence).isEmpty()
    assertThat(b.takeEvent()).isInstanceOf<CallStart>()
    assertThat(b.eventSequence).isEmpty()
    assertThat(c.takeEvent()).isInstanceOf<CallStart>()
    assertThat(c.eventSequence).isEmpty()
    assertThat(d.takeEvent()).isInstanceOf<CallStart>()
    assertThat(d.eventSequence).isEmpty()
  }

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        Map map = project1.getArtifactMap();

        assertNotNull(map, "No artifacts");
        assertFalse(map.isEmpty(), "No Artifacts");
        assertTrue(map.size() == 2, "Set size should be 2, is " + map.size());

        assertTrue(map.containsKey("maven-test:t09-a"), "maven-test:t09-a is not in the project");

        runtime.registerData("labelTypeItems", labelTypeItems);
        runtime.registerData("displayLabelTypeItems", labelTypeItems != null && !labelTypeItems.isEmpty());

        Locale locale = ComponentUtil.getRequestManager().getUserLocale();
        if (locale == null) {
            locale = Locale.ENGLISH;
        }

    private static final String TEAMCITY_VERSION = "TEAMCITY_VERSION";

    @Override
    public Optional<CIInfo> detectCI() {
        String ciEnv = System.getenv(TEAMCITY_VERSION);
        if (ciEnv != null && !ciEnv.trim().isEmpty()) {
            return Optional.of(new CIInfo() {
                @Override
                public String name() {
                    return NAME;
                }
            });
        }