[QPIDJMS-421] Improve performance of MessageProducer by caching common annotation encodings

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.37.0
• Fix Version/s: 0.38.0
• Component/s: qpid-jms-client
• Assignee: Timothy A. Bish
• Reporter: Timothy A. Bish
• Created: 19/Oct/18 17:46
• Updated: 16/Nov/18 10:17
• Resolved: 19/Oct/18 18:26

Description

Each message sent by a producer has a set of type values for Destination and Message types added to the MessageAnnotation section of the AMQP message.  We can improve send performance by caching the encoded bytes of these MessageAnnotations sections and write that instead of performing a fresh encode on each message.