Program: 60457
Project: 60457
Buggy source:
public Profile(final T policyTO,final BaseModal<T> modal,final PageReference pageRef){
  super(modal,pageRef);
  modal.setFormModel(policyTO);
  this.policyTO=policyTO;
  final List<Component> components=new ArrayList<>();
  components.add(new AjaxTextFieldPanel("String_Node_Str","String_Node_Str",new PropertyModel<String>(policyTO,"String_Node_Str"),false));
  if (policyTO instanceof AccountPolicyTO) {
    components.add(new AjaxSpinnerFieldPanel.Builder<Integer>().build("String_Node_Str","String_Node_Str",Integer.class,new PropertyModel<Integer>(policyTO,"String_Node_Str")));
    components.add(new AjaxCheckBoxPanel("String_Node_Str","String_Node_Str",new PropertyModel<Boolean>(policyTO,"String_Node_Str"),false));
    components.add(new AjaxPalettePanel.Builder<String>().setName("String_Node_Str").build("String_Node_Str",new PropertyModel<List<String>>(policyTO,"String_Node_Str"),new ListModel<String>(resources.getObject())));
  }
  if (policyTO instanceof PasswordPolicyTO) {
    components.add(new AjaxSpinnerFieldPanel.Builder<Integer>().build("String_Node_Str","String_Node_Str",Integer.class,new PropertyModel<Integer>(policyTO,"String_Node_Str")));
    components.add(new AjaxCheckBoxPanel("String_Node_Str","String_Node_Str",new PropertyModel<Boolean>(policyTO,"String_Node_Str"),false));
  }
  add(new ListView<Component>("String_Node_Str",components){
    private static final long serialVersionUID=-9180479401817023838L;
    @Override protected void populateItem(    final ListItem<Component> item){
      item.add(item.getModelObject());
    }
  }
);
}

Fixed version (ground truth):
public Profile(final T policyTO,final BaseModal<T> modal,final PageReference pageRef){
  super(modal,pageRef);
  modal.setFormModel(policyTO);
  this.policyTO=policyTO;
  final List<Component> components=new ArrayList<>();
  FieldPanel<String> description=new AjaxTextFieldPanel("String_Node_Str","String_Node_Str",new PropertyModel<String>(policyTO,"String_Node_Str"),false);
  description.setRequired(true);
  components.add(description);
  if (policyTO instanceof AccountPolicyTO) {
    components.add(new AjaxSpinnerFieldPanel.Builder<Integer>().build("String_Node_Str","String_Node_Str",Integer.class,new PropertyModel<Integer>(policyTO,"String_Node_Str")));
    components.add(new AjaxCheckBoxPanel("String_Node_Str","String_Node_Str",new PropertyModel<Boolean>(policyTO,"String_Node_Str"),false));
    components.add(new AjaxPalettePanel.Builder<String>().setName("String_Node_Str").build("String_Node_Str",new PropertyModel<List<String>>(policyTO,"String_Node_Str"),new ListModel<String>(resources.getObject())));
  }
  if (policyTO instanceof PasswordPolicyTO) {
    components.add(new AjaxSpinnerFieldPanel.Builder<Integer>().build("String_Node_Str","String_Node_Str",Integer.class,new PropertyModel<Integer>(policyTO,"String_Node_Str")));
    components.add(new AjaxCheckBoxPanel("String_Node_Str","String_Node_Str",new PropertyModel<Boolean>(policyTO,"String_Node_Str"),false));
  }
  add(new ListView<Component>("String_Node_Str",components){
    private static final long serialVersionUID=-9180479401817023838L;
    @Override protected void populateItem(    final ListItem<Component> item){
      item.add(item.getModelObject());
    }
  }
);
}