[PROTON-613] update java messenger 'send' example behaviour to be more in line with the other language examples

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: proton-0.7
• Fix Version/s: proton-0.8
• Component/s: proton-j
• Assignee: Robbie Gemmell
• Reporter: Robbie Gemmell
• Created: 20/Jun/14 15:39
• Updated: 20/Jun/14 16:17
• Resolved: 20/Jun/14 16:17

Description

The java 'send' example requires that specify the message payloads to use, and essentially results in a NO-OP if you don't give one. The other examples default to sending "Hello World!" if you don't specify otherwise.