Unexpected error during Oracle Service Bus synchronization.

I was attempting to export my OSB project as a Jar in Eclipse OSB 11g, but I was getting this error (visible in the Problem tab) which was halting my progress:

Unexpected error during Oracle Service Bus synchronization. Please see the logs for more information.

A solution I found for this was:

1. Close all projects (including the OSB Configuration Project) in the Eclipse Project Explorer, except for the OSB Project you are trying to export.
2. Refresh the OSB Project
3. Reopen the OSB Configuration Project that corresponds to the OSB project

Eclipse OSB 11g: "This project is not associated with an Oracle Service Bus Configuration"

If you receive the error:

"This project is not associated with an Oracle Service Bus Configuration"

Go to Oracle Service Bus perspective (top right). Now you can drag your project into a OSB Configuration project in the Project Explorer. If there is not an OSB Configuration project available, create one (File > New > Oracle Service Bus Configuration Project).