Support Java 1.5

don't use an IOException constructor missing in Java 1.5

Clean up dodgy merge that re-added ConfirmBase

Clean up dodgy merge that re-added ConfirmBase

Create 2.5 branch

merge bug24120 into default

merge bug24000 into default (Screw javax.security.sasl)

Merge bug21647 (allow consumers to be informed of queue death)

Merged bug23722 into default

Merging bug23760 to default