Merge "Fix an NPE when FileCollector runs." into oc-dev am: bfa8b3d5

            return 0;

        }

        final long sharedDataSize = shared.getPath().getTotalSpace();

        // In some cases, the path may be null -- we can't determine the size in this case.

        final File sharedPath = shared.getPath();

        if (sharedPath == null) {

          return 0;

        }

        final long sharedDataSize = sharedPath.getTotalSpace();

        long systemSize = sm.getPrimaryStorageSize() - sharedDataSize;

        // This case is not exceptional -- we just fallback to the shared data volume in this case.