public final class MyIssuerAuthenticationManagerResolver implements AuthenticationManagerResolver<String> {
 private final List<String> issuers;
 
 @Cacheable
 @Override 
 public AuthenticationManager resolve(String issuer) {
 Assert.isTrue(this.issuers.contains(issuer), "untrusted issuer");
 JwtDecoder jwtDecoder = JwtDecoder.fromIssuerLocation(issuer);
 JwtAuthenticationProvider authenticationProvider = new JwtAuthenticationProvider(jwtDecoder);
 JwtAuthenticationConverter converter = // your custom code
 authenticationProvider.setJwtAuthenticationConverter(converter);
 return new ProviderManager(authenticationProvider);
 }
}

JwtIssuerAuthenticationManagerResolver.fromTrustedIssuers(new MyIssuerAuthenticationManagerResolver());