assertEquals(npeCause, npeException.getCause());
        assertEquals(iseCause, iseException.getCause());
        assertEquals(oomCause, oomException.getCause());
    }

    @Test
    public void test_messageCodeWithPropertyKey() {
        // Setup - test message code with different property keys
        final String message = "Query field error";
        final String propertyKey = "searchQuery";