In large enterprise applications, sometimes, we need to convert data objects to and from Map. Usually, it is an intermediate step to a special serialization. If it is possible to use something standard, then it is better to use that, but many times, the architecture envisioned by some lead architect, the rigid environment, or some similar reason does not make it possible to use JOOQ, Hibernate, Jackson, JAX, or something similar. In such a situation, as it happened to me a few years ago, we have to convert the objects to some proprietary format being string or binary, and the first step towards that direction is to convert the object to a Map.
Eventually, the conversion is more complex than just: