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.
Overview of the JMS API. This overview defines the concept of messaging, describes the JMS API and when it can be used, and explains how the JMS API works within the Java EE platform. Messaging is a method of communication between software components or applications.