Dear all, 

I am developing a plugin which i would like to use the "elementselect" type to make my list dynamic as the LoadFormOptions So I  have used the property: options_ajax to implement

But when I configure the plugin in UI it said NoClassFound

json of the plugin

\[{
        "title": "Configure Secure Transport Interface",
        "properties": \[{
                "name": "type",
                "label": "Please select a function",
                "type": "elementselect", "options_ajax":'\[CONTEXT_PATH\]/web/property/json/getElements?classname=com.axway.aas.plugin.st.util.StFunction',
                "url":'\[CONTEXT_PATH\]/web/property/json\[APP_PATH\]/getPropertyOptions' }\]
  
}\]
\[{

        "title": "Configure The Plugin",

        "properties": \[{

                "name": "type",

                "label": "Please select a function",

                "type": "elementselect",

"options_ajax":'\[CONTEXT_PATH\]/web/property/json/getElements?classname=com.example.StFunction',

                "url":'\[CONTEXT_PATH\]/web/property/json\[APP_PATH\]/getPropertyOptions'

}\]

  

}\]

StFunciton is the interface I have created

json of the sub-plugin i would like to use for dynamic UI

\[{

        "title": "Parameters for creating an account",

        "properties": \[

            {

         "name":"accountName",

       "label":"Account Name",

       "type":"textfield"

       },

{

       "name":"uid",

       "label":"UID",

       "type":"textfield"

       },

{

       "name":"gid",

       "label":"GID",

       "type":"textfield"

       },

{

       "name":"homeFolder",

       "label":"Home Folder",

       "type":"textfield"

       }\]

}\]

 public class StInterface extends DefaultApplicationPlugin

public class StCreateAccount extends StInterface implements StFunction

Do anyone have some ideas about this?

Or give me some advice of how to use the options_ajax property of the elementselect field?

Regards,

Jianan