private static boolean computeIsReachabilityFenceMethodUsable() {
    try {
      Method method = Reference.class.getMethod("reachabilityFence", Object.class);
      method.invoke(null, GcFinalizationTest.class); // to make sure the method is accessible
      return true;
    } catch (NoSuchMethodException | IllegalAccessException probablyBeforeJava9OrAndroid28) {
      /*

            assertSame(tree, t1);
            assertSame(tree, t2);
        }

        // Assert: pipe.ensureTreeConnected invoked once, acquire twice
        verify(pipe, times(1)).ensureTreeConnected();
        verify(tree, times(2)).acquire();
    }

    @Test
    @DisplayName("isOpen and isStale reflect underlying handle validity")

              type,
              new InvocationHandler() {
                @Override
                public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                  if (!method.getDeclaringClass().equals(type)) {
                    return method.invoke(delegate, args);
                  }
                  checkState(started.getCount() == 1);
                  started.countDown();

 * correctly, calls must be chained as illustrated above.
 *
 * <p>Performance note: Even though the {@code ComparisonChain} caller always invokes its {@code
 * compare} methods unconditionally, the {@code ComparisonChain} implementation stops calling its
 * inputs' {@link Comparable#compareTo compareTo} and {@link Comparator#compare compare} methods as

        SmbTreeImpl tree = mock(SmbTreeImpl.class);
        doReturn(tree).when(session).getSmbTree(eq("LOGON$"), isNull());

        // Act
        session.treeConnectLogon();

        // Assert: treeConnect invoked once with null params
        verify(tree, times(1)).treeConnect(isNull(), isNull());
        // Close of try-with-resources should call close on the mock
        verify(tree, times(1)).close();
    }

    @Test

    }

    /**
     * Helper method to invoke protected/private method using reflection
     */
    private Object invokeMethod(Object obj, String methodName, Class<?>[] paramTypes, Object... args) throws Exception {
        Method method = obj.getClass().getDeclaredMethod(methodName, paramTypes);
        method.setAccessible(true);
        return method.invoke(obj, args);
    }

    /**

 * correctly, calls must be chained as illustrated above.
 *
 * <p>Performance note: Even though the {@code ComparisonChain} caller always invokes its {@code
 * compare} methods unconditionally, the {@code ComparisonChain} implementation stops calling its
 * inputs' {@link Comparable#compareTo compareTo} and {@link Comparator#compare compare} methods as

    void constructorAndSimpleDelegations() {
        // Ensures constructor acquires tree connection and simple delegate methods forward correctly
        // Verify constructor invoked acquire once
        verify(treeConnection, times(1)).acquire();

        // getConfig delegates
        when(treeConnection.getConfig()).thenReturn(config);
        assertSame(config, handle.getConfig());

EOF
```

Upload this object to the bucket via `mc cp`
```
mc cp testobject myminio/functionbucket/
```

## Invoke Lambda transformation via PresignedGET

Nous allons utiliser les utilités de sécurité de **FastAPI** pour obtenir `username` et `password`.

OAuth2 spécifie que lorsqu'on utilise le « password flow » (ce que nous utilisons), le client/utilisateur doit envoyer des champs `username` et `password` en tant que données de formulaire.

Et la spécification indique que les champs doivent porter exactement ces noms. Ainsi, `user-name` ou `email` ne fonctionneraient pas.