Program: 69284
Project: 69284
Buggy source:
protected void renderHeaderSearch(Renderer renderer,StringOutput sb,FlexiTableElementImpl ftE,URLBuilder ubu,Translator translator,RenderResult renderResult,String[] args){
  if (ftE.isSearchEnabled()) {
    Form theForm=ftE.getRootForm();
    String dispatchId=ftE.getFormDispatchId();
    sb.append("String_Node_Str");
    renderFormItem(renderer,sb,ftE.getSearchElement(),ubu,translator,renderResult,args);
    sb.append("String_Node_Str");
    String id=ftE.getSearchElement().getFormDispatchId();
    sb.append("String_Node_Str").append(id).append("String_Node_Str").append(FormJSHelper.getXHRFnCallFor(theForm,dispatchId,1,true,true,true,new NameValuePair("String_Node_Str","String_Node_Str"))).append("String_Node_Str");
    renderFormItem(renderer,sb,ftE.getSearchButton(),ubu,translator,renderResult,args);
    if (ftE.getExtendedSearchButton() != null) {
      renderFormItem(renderer,sb,ftE.getExtendedSearchButton(),ubu,translator,renderResult,args);
    }
    StringBuilder filterIndication=new StringBuilder();
    if (ftE.getExtendedFilterButton() != null) {
      ftE.getSelectedExtendedFilters().forEach(filter -> {
        if (filterIndication.length() > 0)         filterIndication.append("String_Node_Str");
        filterIndication.append(filter.getLabel());
      }
);
      renderFormItem(renderer,sb,ftE.getExtendedFilterButton(),ubu,translator,renderResult,args);
    }
    sb.append("String_Node_Str");
    sb.append("String_Node_Str");
    if (filterIndication.length() > 0) {
      sb.append("String_Node_Str").append(filterIndication).append("String_Node_Str").append(FormJSHelper.getXHRFnCallFor(theForm,dispatchId,1,true,true,true,new NameValuePair("String_Node_Str","String_Node_Str"))).append("String_Node_Str").append(translator.translate("String_Node_Str")).append("String_Node_Str").append("String_Node_Str").append("String_Node_Str");
    }
  }
 else   if (ftE.getExtendedSearchButton() != null) {
    renderFormItem(renderer,sb,ftE.getExtendedSearchButton(),ubu,translator,renderResult,args);
  }
}

Fixed version (ground truth):
protected void renderHeaderSearch(Renderer renderer,StringOutput sb,FlexiTableElementImpl ftE,URLBuilder ubu,Translator translator,RenderResult renderResult,String[] args){
  if (ftE.isSearchEnabled()) {
    Form theForm=ftE.getRootForm();
    String dispatchId=ftE.getFormDispatchId();
    sb.append("String_Node_Str");
    renderFormItem(renderer,sb,ftE.getSearchElement(),ubu,translator,renderResult,args);
    sb.append("String_Node_Str");
    String id=ftE.getSearchElement().getFormDispatchId();
    sb.append("String_Node_Str").append(id).append("String_Node_Str").append(FormJSHelper.getXHRFnCallFor(theForm,dispatchId,1,true,true,true,new NameValuePair("String_Node_Str","String_Node_Str"))).append("String_Node_Str");
    renderFormItem(renderer,sb,ftE.getSearchButton(),ubu,translator,renderResult,args);
    if (ftE.getExtendedSearchButton() != null) {
      renderFormItem(renderer,sb,ftE.getExtendedSearchButton(),ubu,translator,renderResult,args);
    }
    StringBuilder filterIndication=new StringBuilder();
    if (ftE.getExtendedFilterButton() != null) {
      ftE.getSelectedExtendedFilters().forEach(filter -> {
        if (filterIndication.length() > 0)         filterIndication.append("String_Node_Str");
        filterIndication.append(filter.getLabel());
      }
);
      renderFormItem(renderer,sb,ftE.getExtendedFilterButton(),ubu,translator,renderResult,args);
    }
    sb.append("String_Node_Str");
    sb.append("String_Node_Str");
    if (filterIndication.length() > 0) {
      sb.append("String_Node_Str").append(filterIndication).append("String_Node_Str").append(FormJSHelper.getXHRFnCallFor(theForm,dispatchId,1,true,true,true,new NameValuePair("String_Node_Str","String_Node_Str"))).append("String_Node_Str").append(translator.translate("String_Node_Str")).append("String_Node_Str").append("String_Node_Str");
    }
  }
 else   if (ftE.getExtendedSearchButton() != null) {
    renderFormItem(renderer,sb,ftE.getExtendedSearchButton(),ubu,translator,renderResult,args);
  }
}