E.g. in org.netbeans.modules.project.ui.actions.Actions:

NbBundle.getMessage(Actions.class, "LBL_RunMainProjectAction_Name")

with Bundle.properties:

LBL_RunMainProjectAction_Name=&Run {0,choice,-1#Main Project|0#Project|1#Project ({1})|1<{0} Projects}

cannot (currently) be converted to @Messages since getMessage is expected to return an unsubstituted format string. So the hint should just produce a warning in this case, and not try to replace it.

In the future it might be nice for @Messages to have a way to suppress parameter generation for certain strings. Or, in this case, MainProjectAction could take a plain name (0 -> "&Run Project") in its constructor, and have overridable methods with Java parameters for other variants (-1, 1, 1<). In any event, the hint should still be made more robust.