--- a/metric-providers/org.ossmeter.metricprovider.trans.rascal.NOA/src/NOA.rsc
+++ b/metric-providers/org.ossmeter.metricprovider.trans.rascal.NOA/src/NOA.rsc
@@ -20,9 +20,9 @@
@friendlyName{Number of attributes}
@appliesTo{java()}
map[loc class, int noa] NOA(
- ProjectDelta delta = \empty(),
+ ProjectDelta delta = ProjectDelta::\empty(),
map[str, loc] workingCopyFolders = (),
- rel[Language, loc, M3] m3s = ())
+ rel[Language, loc, M3] m3s = {})
{
map[loc class, int noa] result = ();
changed = getChangedFilesInWorkingCopyFolders(delta, workingCopyFolders);