An object has the properties:

public boolean[] getSelectedPresenters()
public void setSelectedPresenters(boolean[] selected)

public Integer getIndex()

the expression results in a bad array index compilation error with the compiled source of:

selectedPresenters[index] getter body: { return ($w) (((boolean[])(($ScheduleRuleInfo_369)$2).getSelectedPresenters())[(($ScheduleRuleInfo_369)$2).getIndex()]);}