In Hudson I click the following links:

Coverage Report --> <package> --> <class name>

Then I see the following in the report:

Source code is unavailable. Some possible reasons are:

• This is not the most recent build (to save on disk space, this plugin only keeps the most recent builds source code).
• Cobertura found the source code but did not provide enough information to locate the source code.
• Cobertura could not find the source code, so this plugin has no hope of finding it.

When I try to access ( html link )the TypeManager.java file I can see the following link:

http://myhost:8080/job/myjob/8/cobertura/se_mypackage_is_here/TypeManager_java

Checking my Hudson install dir ( .hudson) I have the a cobertura folder under.

/home/mylogin/.hudson/jobs/myjob The folder contains ( source code ):

se/mypackage_is_here/TypeManager.java

If I check the report for cobertura without hudson there are html pages of the source files.
These seems to be missing.

//mike