* of the queue is evicted to make room.
   *
   * @return {@code true} always
   */
  @Override
  @CanIgnoreReturnValue
  public boolean offer(E e) {
    return add(e);
  }

  /**
   * Adds the given element to this queue. If the queue is currently full, the element at the head
   * of the queue is evicted to make room.
   *
   * @return {@code true} always
   */

    // of the values gets evicted. With weak keys, we use identity equality, which means using
    // System.identityHashCode, which means the assignment of keys to segments is nondeterministic,
    // so more than (maximumSize / #segments) keys could get assigned to the same segment, which
    // would cause one to be evicted.
    return new CacheBuilderFactory()

            }
        };

        try {
            emptyEnv.get("non.existent.property");
            fail("Should throw ConfigPropertyNotFoundException");
        } catch (ConfigPropertyNotFoundException e) {
            assertTrue(e.getMessage().contains("non.existent.property"));
        }

        try {
            emptyEnv.is("non.existent.boolean");
            fail("Should throw ConfigPropertyNotFoundException");

        // Should not throw exception
        lenientService.updatePreauthHash("non-existent", "test".getBytes());

        // With enforcement enabled, should throw exception
        assertThrows(CIFSException.class, () -> {
            preauthService.updatePreauthHash("non-existent", "test".getBytes());
        });
    }

    @Test
    @DisplayName("Test context invalidation")

package org.codelibs.core.beans.util;

import java.util.LinkedHashMap;

import org.codelibs.core.exception.IllegalKeyOfBeanMapException;

/**
 * A map with String keys that throws an exception when accessing (get) a non-existent key.
 *
 * @author higa
 */
public class BeanMap extends LinkedHashMap<String, Object> {

    private static final long serialVersionUID = 1;

    /**
     * Creates a new {@link BeanMap}.
     */

        * `implicit`
        * `clientCredentials`
        * `authorizationCode`
    * Mas existe um “fluxo” específico que pode ser perfeitamente usado para resolver autenticação diretamente na mesma aplicação:
        * `password`: alguns dos próximos capítulos tratarão disso.

Por esse motivo, o próprio **FastAPI** fornece uma API alternativa para documentação (utilizando ReDoc), que você pode acessar em <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>:

<img src="/img/tutorial/path-params/image02.png">

# Templates

Você pode usar qualquer template engine com o **FastAPI**.

Uma escolha comum é o Jinja2, o mesmo usado pelo Flask e outras ferramentas.

Existem utilitários para configurá-lo facilmente que você pode usar diretamente em sua aplicação **FastAPI** (fornecidos pelo Starlette).

## Instalação de dependências

Para instalar o `jinja2`, siga o código abaixo:

<div class="termy">

```console
$ pip install jinja2
```

 *
 * <p>If {@link #maximumSize(long) maximumSize} or {@link #maximumWeight(long) maximumWeight} is
 * requested entries may be evicted on each cache modification.
 *
 * <p>If {@link #expireAfterWrite expireAfterWrite} or {@link #expireAfterAccess expireAfterAccess}
 * is requested entries may be evicted on each cache modification, on occasional cache accesses, or

        // Test with property that doesn't exist and default value
        cmdList.clear();
        execJob.testAddSystemProperty(cmdList, "non.existent.property", "default.value", null);
        assertEquals(1, cmdList.size());
        assertEquals("-Dnon.existent.property=default.value", cmdList.get(0));

        // Test with property that doesn't exist and no default value
        cmdList.clear();