columns := make([]string, 0, len(mapValues))

	// when the length of mapValues is zero,return directly here
	// no need to call stmt.SelectAndOmitColumns method
	if len(mapValues) == 0 {
		stmt.AddError(gorm.ErrEmptySlice)
		return
	}

	var (
		result                    = make(map[string][]interface{}, len(mapValues))

  }

  /**
   * Returns an immutable multimap containing the same mappings as {@code multimap}, in the
   * "key-grouped" iteration order described in the class documentation.
   *
   * <p>Despite the method name, this method attempts to avoid actually copying the data when it is
   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *

  private static final int GREATEST = Integer.MAX_VALUE;

  private static final int[] VALUES = {LEAST, (int) -1, (int) 0, (int) 1, GREATEST};

  // We need to test that our method behaves like the JDK method.
  @SuppressWarnings("InlineMeInliner")
  public void testHashCode() {
    for (int value : VALUES) {
      assertThat(Ints.hashCode(value)).isEqualTo(Integer.hashCode(value));
    }
  }

  public void testNewLinkedListEmpty() {
    @SuppressWarnings("UseCollectionConstructor") // test of factory method
    LinkedList<Integer> list = Lists.newLinkedList();
    assertEquals(emptyList(), list);
  }

  public void testNewLinkedListFromCollection() {
    @SuppressWarnings("UseCollectionConstructor") // test of factory method
    LinkedList<Integer> list = Lists.newLinkedList(SOME_COLLECTION);
    assertEquals(SOME_COLLECTION, list);

    HttpUrl
      .Builder()
      .scheme(if (sslSocketFactory != null) "https" else "http")
      .host(uriHost)
      .port(uriPort)
      .build()

  /**
   * The protocols the client supports. This method always returns a non-null list that
   * contains minimally [Protocol.HTTP_1_1].
   */
  @get:JvmName("protocols")
  val protocols: List<Protocol> = protocols.toImmutableList()

  @get:JvmName("connectionSpecs")

    public String errorCount;

    /** Last time this URL was accessed. */
    public String lastAccessTime;

    /**
     * Clears all pager data and resets to default values.
     * This method resets pagination state and search filters.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;
        existNextPage = false;

   * This implementation requires O(|N|) time. Classes extending this one may manually keep track of
   * the number of edges as the graph is updated, and override this method for better performance.
   */
  protected long edgeCount() {
    long degreeSum = 0L;
    for (N node : nodes()) {
      degreeSum += degree(node);
    }

        SingletonContext.registerSmbURLHandler();
        assertEquals("com.example|jcifs|org.test", System.getProperty("java.protocol.handler.pkgs"));
    }

    // Helper method to get the singleton instance via reflection for assertion
    private Object getSingletonInstanceViaReflection() {
        try {
            Field instance = SingletonContext.class.getDeclaredField("INSTANCE");

    @Test
    void readBytesWireFormatTooShortException() {
        Configuration cfg = mock(Configuration.class);
        SmbComLockingAndX cmd = new SmbComLockingAndX(cfg);
        // arrays of size 1 so internal method will attempt to decode a range
        setField(cmd, "unlocks", new LockingAndXRange[] { new LockingAndXRange(false) });
        setField(cmd, "locks", new LockingAndXRange[] { new LockingAndXRange(false) });

El middleware responde a dos tipos particulares de request HTTP...

### Requests de preflight CORS

Estos son cualquier request `OPTIONS` con headers `Origin` y `Access-Control-Request-Method`.

En este caso, el middleware interceptará el request entrante y responderá con los headers CORS adecuados, y un response `200` o `400` con fines informativos.

### Requests simples