@Override
  public <B extends XLineBreakpoint<?>> List<XBreakpointGroupingRule<B, ?>> getGroupingByFileRuleAsList() {
    return Collections.singletonList(getGroupingByFileRule());
  }
@Override
  public <B extends XLineBreakpoint<?>> List<XBreakpointGroupingRule<B, ?>> getGroupingByFileRuleAsList()