[QPID-7532] [Java] Replace AMQConstant class with constant integer error codes

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: qpid-java-broker-7.0.0, qpid-java-client-0-x-6.3.0
• Component/s: Broker-J, Java Common, JMS AMQP 0-x
• Assignee: Robert Godfrey
• Reporter: Robert Godfrey
• Created: 19/Nov/16 21:18
• Updated: 14/Nov/17 21:59
• Resolved: 05/Jan/17 12:52

Description

The AMQConstant class is weird and permeates through the equally weird AMQException hierarchy. Essentially the class in 95% about defining the common error codes (404 means Not Found, etc). The AMQConstant class is used broker wide, but does not actually fit to the AMQP 0-10 or 1.0 models.

In AMQP 0-8 we should use the integer error codes, in common code we should use protocol independent enumerations to define possible error conditions