title: How to update password via keyclaok admin rest api by execute-actions-email
body: <p>I am trying to trigger the password-reset process in keycloack, such that the user receives an email to set a new password. Unfortunately I always get 400 response with </p>
  
  <blockquote>
    <p>com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
     at [Source: io.undertow.servlet.spec.ServletInputStreamImpl@89719e69; line: 1, column: 1]</p>
  </blockquote>
  
  <p>I call keycloak on described api: "PUT /admin/realms/{realm}/users/{id}/execute-actions-email" with following object:</p>
  
  <pre><code>{"actions":["UPDATE_PASSWORD"]}
  </code></pre>
  
  <p>see:
  <a href="http://www.keycloak.org/docs/rest-api/index.html#_send_a_update_account_email_to_the_user" rel="noreferrer">http://www.keycloak.org/docs/rest-api/index.html#_send_a_update_account_email_to_the_user</a></p>