ClosingFuture.from(immediateFuture("value3")),
                ClosingFuture.from(immediateFuture("value4")),
                ClosingFuture.from(immediateFuture("value5")))
            .call(
                (DeferredCloser closer,
                    TestCloseable v1,
                    String v2,
                    String v3,
                    String v4,

                ClosingFuture.from(immediateFuture("value3")),
                ClosingFuture.from(immediateFuture("value4")),
                ClosingFuture.from(immediateFuture("value5")))
            .call(
                (DeferredCloser closer,
                    TestCloseable v1,
                    String v2,
                    String v3,
                    String v4,

        assertTrue(dataStoreParams.containsKey("key4"));

        // Create a copy
        DataStoreParams copy = dataStoreParams.newInstance();

        // Modify original
        dataStoreParams.put("key5", "value5");

        // Verify copy is independent
        assertTrue(dataStoreParams.containsKey("key5"));
        assertFalse(copy.containsKey("key5"));

        // Get as map and verify

        assertEquals(name, param.getName());
        assertNotNull(param.getValues());
        assertEquals(1000, param.getValues().length);
        assertEquals("value0", param.getValues()[0]);
        assertEquals("value999", param.getValues()[999]);
    }

    @Test
    public void test_veryLongStrings() {
        // Test with very long strings

          @ParametricNullness V1 value1,
          @ParametricNullness V2 value2,
          @ParametricNullness V3 value3,
          @ParametricNullness V4 value4,
          @ParametricNullness V5 value5)
          throws Exception;
    }

    /**
     * A function that returns a {@link ClosingFuture} when applied to the values of the five