Dusk vs Dawn. Dusk and dawn are actually opposite times of the day. The former refers to the time before night starts while the latter refers to the time just before the night ends. There is no specific time for them, however, as sunrise and sunset occurs differently everyday. Dusk.
What is JMS? Java Message Service (JMS) is an application program interface (API) from Sun Microsystems that supports the messaging communication between computers / applications / software components in a network.
A JMS application can be architected and deployed as a unit. In many cases, JMS clients are added incrementally to an existing application. The message definitions used by an application may originate with JMS, or they may have been defined by the non-JMS part of the application.