I see following in my builds against master
Build File: .../src/tests/antunit/taskdefs/copy-test.xml
Tests run: 26, Failures: 0, Errors: 2, Time elapsed: 8,59 sec
...
Target: test-with-some-resources-mapped-away caused an ERROR
at line 471, column 29
Message: Can't copy a resource without a name if the mapper doesn't
provide one.
took 0,005 sec
...
Target: testResourceWithoutName caused an ERROR
at line 89, column 29
Message: Can't copy a resource without a name if the mapper doesn't
provide one.
took 0,133 sec
...
Gintas