Acronym for Plain Old Java Object.
POJO, or Plain Old Java Object, is a normal Java
object class (that is, not a JavaBean, EntityBean etc.) and does not serve any other special role
nor does it implement any special interfaces of any of the Java frameworks. This term was
coined by Martin Fowler, Rebbecca Parsons and Josh MacKenzie who believed that
by creating the acronym POJO, such objects would have a "fancy name", thereby
convincing people that they were worthy of use.