[MIME4J-89] Improve thread synchronization in MultiReferenceStorage

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6
• Fix Version/s: 0.6
• Assignee: Robert Burrell Donkin
• Reporter: Markus Wiederkehr
• Created: 01/Dec/08 17:59
• Updated: 01/Dec/08 19:35
• Resolved: 01/Dec/08 19:35

Description

MultiReferenceStorage uses method based synchronization to protect the reference counting variable.

There are two problems with that:
1. storage is an interface and so storage.delete() represents a leak of the thread of execution.
2. storage.delete() may be a slow operation.