Program: 16325
Project: 16325
Buggy source:
public void render(final Listitem item,final Object data) throws Exception {
  final Listbox listbox=(Listbox)item.getParent();
  final int index=item.getIndex();
  final Template tm=resoloveTemplate(listbox,item,data,index,"String_Node_Str");
  if (tm == null) {
    item.setLabel(Objects.toString(data));
    item.setValue(data);
  }
 else {
    final String var=(String)tm.getParameters().get(EACH_ATTR);
    final String varnm=var == null ? EACH_VAR : var;
    final String itervar=(String)tm.getParameters().get(STATUS_ATTR);
    final String itervarnm=itervar == null ? varnm + STATUS_POST_VAR : itervar;
    final Component[] items=tm.create(listbox,item,new VariableResolverX(){
      public Object resolveVariable(      String name){
        return varnm.equals(name) ? data : null;
      }
      public Object resolveVariable(      XelContext ctx,      Object base,      Object name) throws XelException {
        if (base == null) {
          if (varnm.equals(name)) {
            return data;
          }
 else           if (itervarnm.equals(name)) {
            return new AbstractIterationStatus(){
              private static final long serialVersionUID=1L;
              @Override public int getIndex(){
                return Integer.valueOf(index);
              }
            }
;
          }
        }
        return null;
      }
    }
,null);
    if (items.length != 1)     throw new UiException("String_Node_Str" + items.length);
    final Listitem nli=(Listitem)items[0];
    nli.setAttribute(BinderImpl.VAR,varnm);
    nli.setAttribute(varnm,data);
    nli.setAttribute(itervarnm,new AbstractIterationStatus(){
      private static final long serialVersionUID=1L;
      @Override public int getIndex(){
        return Integer.valueOf(index);
      }
    }
);
    addTemplateDependency(listbox,nli,data,index);
    if (nli.getValue() == null)     nli.setValue(data);
    item.setAttribute("String_Node_Str",nli);
    item.detach();
  }
}

Fixed version (ground truth):
public void render(final Listitem item,final Object data) throws Exception {
  final Listbox listbox=(Listbox)item.getParent();
  final int index=item.getIndex();
  final Template tm=resoloveTemplate(listbox,item,data,index,"String_Node_Str");
  if (tm == null) {
    item.setLabel(Objects.toString(data));
    item.setValue(data);
  }
 else {
    final String var=(String)tm.getParameters().get(EACH_ATTR);
    final String varnm=var == null ? EACH_VAR : var;
    final String itervar=(String)tm.getParameters().get(STATUS_ATTR);
    final String itervarnm=itervar == null ? varnm + STATUS_POST_VAR : itervar;
    final Component[] items=tm.create(listbox,item,new VariableResolverX(){
      public Object resolveVariable(      String name){
        return varnm.equals(name) ? data : null;
      }
      public Object resolveVariable(      XelContext ctx,      Object base,      Object name) throws XelException {
        if (base == null) {
          if (varnm.equals(name)) {
            return data;
          }
 else           if (itervarnm.equals(name)) {
            return new AbstractIterationStatus(){
              private static final long serialVersionUID=1L;
              @Override public int getIndex(){
                return Integer.valueOf(index);
              }
            }
;
          }
        }
        return null;
      }
    }
,null);
    if (items.length != 1)     throw new UiException("String_Node_Str" + items.length);
    final Listitem nli=(Listitem)items[0];
    nli.setAttribute(BinderImpl.VAR,varnm);
    addItemReference(nli,index,varnm);
    nli.setAttribute(itervarnm,new AbstractIterationStatus(){
      private static final long serialVersionUID=1L;
      @Override public int getIndex(){
        return Integer.valueOf(index);
      }
    }
);
    addTemplateTracking(listbox,nli,data,index);
    if (nli.getValue() == null)     nli.setValue(data);
    item.setAttribute("String_Node_Str",nli);
    item.detach();
  }
}