@XCollection(propertyElementName = "class-exclusion-filters")
  public ClassFilter[] getClassExclusionFilters() {
    return myClassExclusionFilters != null ? myClassExclusionFilters : ClassFilter.EMPTY_ARRAY;
  }
@XCollection(propertyElementName = "class-exclusion-filters")
  public ClassFilter[] getClassExclusionFilters()