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up by explicitly calling the JMSContext.close() method or else take advantage of
the AutoCloseable interface introduced with Java SE 7.
If all goes well, a message containing the shipping request ends up in the queue. Before
we look at the message consumer code that receives this message, let's discuss the
javax.jms.Message object in a little more detail.
4.2.1. JMS Message interface
The Message interface standardizes the different types of messages that can be exchanged
across different JMS providers. As figure 4.6 shows, a JMS message has the following
parts: the message header, the message properties, and the message body, each of which is
detailed in the following sections.
Figure 4.6. Anatomy of a JMS message
 
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