assertThat(StringUtil.defaultString("aaa", null), is("aaa"));
        assertThat(StringUtil.defaultString(null, null), is(nullValue()));
    }

    @Test
    public void testNewStringUnsafe() {
        assertNull(StringUtil.newStringUnsafe(null));
        Method newStringUnsafeMethod = StringUtil.newStringUnsafeMethod;
        if (newStringUnsafeMethod != null) {

    }

    // Edge inputs: null context returns null session per mock setup
    @Test
    @DisplayName("getSmbSession(ctx) with null context returns null as stubbed")
    void getSmbSession_byContext_null() {
        when(transport.getSmbSession(isNull(jcifs.CIFSContext.class))).thenReturn(null);
        assertNull(transport.getSmbSession((jcifs.CIFSContext) null));

    return RecordedResponse(priorResponse.request, priorResponse, null, null, null)
  }

  /**
   * Asserts that the current response used the network and returns the network response.
   */
  fun networkResponse(): RecordedResponse {
    val networkResponse = response!!.networkResponse!!
    return RecordedResponse(networkResponse.request, networkResponse, null, null, null)
  }

        if (boost != null) {
            addFieldToSource(sourceMap, "boost", boost);
        }
        if (createdBy != null) {
            addFieldToSource(sourceMap, "createdBy", createdBy);
        }
        if (createdTime != null) {
            addFieldToSource(sourceMap, "createdTime", createdTime);
        }
        if (maxSize != null) {
            addFieldToSource(sourceMap, "maxSize", maxSize);

        if (_conditionQuery != null) {
            QueryBuilder queryBuilder = _conditionQuery.getQuery();
            if (queryBuilder != null) {
                builder.setQuery(queryBuilder);
            }
            _conditionQuery.getFieldSortBuilderList().forEach(sort -> {
                builder.addSort(sort);
            });
        }

        if (_conditionAggregation != null) {

   * @return {@code string} if it is not null; {@code ""} otherwise
   */
  static String nullToEmpty(@Nullable String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not empty; {@code null} otherwise
   */

     */
    @Nonnull
    ProjectBuilderResult build(ProjectBuilderRequest request) throws ProjectBuilderException;

    /**
     * Creates a {@link org.apache.maven.api.Project} from a POM file.
     *
     * @param session the {@link Session}, must not be {@code null}
     * @param source The {@link Source}, must not be {@code null}

    assertEquals(0, multimap().keys().count(null));
  }

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(ALLOWS_NULL_KEYS)
  public void testKeysWithNullKey() {
    resetContainer(mapEntry((K) null, v0()), mapEntry((K) null, v1()), mapEntry(k1(), v0()));
    Multiset<K> keys = multimap().keys();
    assertEquals(2, keys.count(null));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());

        if (INSTANCE != null) {
            throw new CIFSException("Singleton context is already initialized");
        }
        final Properties p = new Properties();
        try {
            final String filename = System.getProperty("jcifs.properties");
            if (filename != null && filename.length() > 1) {

@GwtCompatible
final class CollectPreconditions {

  static void checkEntryNotNull(Object key, Object value) {
    if (key == null) {
      throw new NullPointerException("null key in entry: null=" + value);
    } else if (value == null) {
      throw new NullPointerException("null value in entry: " + key + "=null");
    }
  }

  @CanIgnoreReturnValue
  static int checkNonnegative(int value, String name) {
    if (value < 0) {