On Windows, Bamboo Agent will fail when trying to do a clean build on a source directory which contains broken NTFS junctions.

For example, our binaries are put into a subdirectory of our main source code tree. For example:

build-dir/JOB1/SourceCode/build-artifacts

During the build process, relative NTFS junctions are created within build-artifacts, pointing to other locations within SourceCode:

build-artifacts/directory1 ---> ../ParentDirectory1
build-artifacts/directory2 ---> ../ParentDirectory2

When Bamboo agent tries to clean the build directory, it first deletes ParentDirectory1 and ParentDirectory2, breaking the junctions.

Then when the directory-walking code tries to access build-artifacts/directory1, it fails. This throws an exception and the cleaning process fails. Subsequently the entire build fails.

Code should be fixed to detect broken junctions and delete them without trying to walk further down in the hierarchy.

NOTE: We use Bamboo OnDemand. Currently at version 5.2