protected void propagateNullOnNested(Function<Query, ResultIterable<? extends TestBean>> mapFunction) {
        try (Query select = handle.select("select 'fourty-two' as nestedid")) {
            TestBean testBean = mapFunction.apply(select).one();

            assertThat(testBean).isNotNull();
            assertThat(testBean.getNestedBean()).isNotNull();
            assertThat(testBean.getNestedBean().getId()).isEqualTo("fourty-two");

            testBean = mapFunction.apply(handle.select("select NULL as nestedid"))
                .one();

            assertThat(testBean).isNotNull();
            assertThat(testBean.getNestedBean()).isNull();
        }
    }
Test that the propagateNull annotation on a nested bean works. The nested bean does not use a prefix and the column in the nested bean is present in the
result set.
core/src/test/java/org/jdbi/v3/core/mapper/AbstractPropagateNullTest.java