Multiple WebSecurityConfigurerAdapters: JWT authentication and form login in spring security

Your WebSecurityConfigurerAdapters will process the incoming requests in order.
Since JWTSecurityConfig is annotated with @Order(1) it will process the requests first.

You have not specified a antMatcher for this Adapter, so it will match all requests.
This means that a request will never reach FormLoginConfigurationAdapter, since JWTSecurityConfig matches them all.

If you want JWTSecurityConfig to only apply to certain requests, you can specify an antMatcher in your security configuration.
Below is an example:

@EnableWebSecurity
public class SecurityConfigurations {

    @Configuration
    @Order(1)
    public class JWTSecurityConfig extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
           http
              .requestMatchers(matchers -> matchers
                  .antMatchers("/api/**") // apply JWTSecurityConfig to requests matching "/api/**"
              )
              .authorizeRequests(authz -> authz
                  .anyRequest().authenticated()
              )
              .addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
        }
    }

    @Configuration
    public class FormLoginConfigurationAdapter extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
           http
              .authorizeRequests(authz -> authz
                  .anyRequest().authenticated()
              )
              .formLogin();
        }
    }
}

For more details on multiple WebSecurityConfigurerAdapter, you can see the multiple HttpSecurity section in the Spring Security reference docs.

For more details on the difference between authorizeRequests() and requestMatchers(), you can see this Stack Overflow question.