How to generate an oauth token using spring without the password - spring

Question

I am trying to create an additional access token for a user within my spring boot application. I do not know their password but the user is authorized to the application. From what I can see I would need to call something like
OAuth2AccessToken accessToken = tokenServices.createAccessTokenForUser(authenticationRequest, user);
Where tokenServices is presumably an instance of DefaultTokenServices. The question is how do I get a reference to the configured token services? I see that this is wired into AuthorizationServerEndpointsConfigurer but I cannot autowire this in. I am using JWT for authentication so really looking for a way to generate a JWT token.
Was trying to implement the flow outlined in Spring OAuth2 - Manually creating an access token in the token store

Answer 1

In my spring-security-config.xml i have this:
<bean id="tokenServices" class="de.hybris.platform.ycommercewebservices.oauth2.token.provider.HybrisOAuthTokenServices">
<property name="tokenStore" ref="tokenStore" />
<property name="supportRefreshToken" value="true" />
<property name="refreshTokenValiditySeconds" value="2592000" />
<!-- 60*60*24*30 = 30d -->
<property name="accessTokenValiditySeconds" value="43200" />
<!-- 60*60*12 = 12h -->
</bean>
Where i can configure my customized tokenServices
public class HybrisOAuthTokenServices extends DefaultTokenServices{
#Override
public OAuth2AccessToken createAccessToken(final OAuth2Authentication authentication) throws AuthenticationException{
try{
return super.createAccessToken(authentication);
}catch (final ModelSavingException e) {
//in case when other client was faster in saving access token - try to get token again
return super.createAccessToken(authentication);
}catch (final ModelRemovalException e) {
//in case when other client was faster in removing expired token - try to get token again
return super.createAccessToken(authentication);
}
}
}