Java 大佬帮忙看看为啥我生成的 access token 和 refresh token 一样？

代码如下：
@Configuration
public class SecurityConfig {
    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http.authorizeHttpRequests((authorize) -> authorize.anyRequest().authenticated())
                .csrf((crsf) -> crsf.ignoringRequestMatchers("/token"))
                .httpBasic(Customizer.withDefaults())
                .oauth2ResourceServer((resourceServer) -> resourceServer.jwt(Customizer.withDefaults()))
                .sessionManagement((session) -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .exceptionHandling((exceptions) -> exceptions
                        .authenticationEntryPoint(new BearerTokenAuthenticationEntryPoint())
                        .accessDeniedHandler(new BearerTokenAccessDeniedHandler())
                );
        return http.build();
    }

    @Bean
    public UserDetailsService userDetailsService() {
        return new InMemoryUserDetailsManager(
                User.withUsername("user")
                        .password("{noop}123")
                        .authorities("app")
                        .build()
        );
    }

    @Bean
    @Primary
    public JWKSource<SecurityContext> jwkSource() {
        KeyPair keyPair = generateRsaKey();
        RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
        RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
        RSAKey rsaKey = new RSAKey.Builder(publicKey)
                .privateKey(privateKey)
                .keyID(UUID.randomUUID().toString())
                .build();
        JWKSet jwkSet = new JWKSet(rsaKey);
        return new ImmutableJWKSet<>(jwkSet);
    }

    @Bean
    @Qualifier("refreshJwkSource")
    public JWKSource<SecurityContext> refreshJwkSource() {
        KeyPair keyPair = generateRsaKey2();
        RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
        RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
        RSAKey rsaKey = new RSAKey.Builder(publicKey)
                .privateKey(privateKey)
                .keyID(UUID.randomUUID().toString())
                .build();
        JWKSet jwkSet = new JWKSet(rsaKey);
        return new ImmutableJWKSet<>(jwkSet);
    }

    public KeyPair generateRsaKey() {
        KeyPair keyPair;
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
            keyPairGenerator.initialize(2048);
            keyPair = keyPairGenerator.generateKeyPair();
        }
        catch (Exception ex) {
            throw new IllegalStateException(ex);
        }
        return keyPair;
    }

    private KeyPair generateRsaKey2() {
        KeyPair keyPair;
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
            keyPairGenerator.initialize(2048);
            keyPair = keyPairGenerator.generateKeyPair();
        }
        catch (Exception ex) {
            throw new IllegalStateException(ex);
        }
        return keyPair;
    }

    @Bean
    @Primary
    JwtEncoder jwtEncoder(JWKSource<SecurityContext> jwkSource) {
        return new NimbusJwtEncoder(jwkSource);
    }

    @Bean
    @Qualifier("refreshJwtEncoder")
    JwtEncoder refreshJwtEncoder(JWKSource<SecurityContext> refreshJwkSource) {
        return new NimbusJwtEncoder(refreshJwkSource);
    }

    @Bean
    @Primary
    JwtDecoder jwtDecoder(JWKSource<SecurityContext> jwkSource) {
        Set<JWSAlgorithm> jwsAlgorithmSet = new HashSet<>(JWSAlgorithm.Family.RSA);
        ConfigurableJWTProcessor<SecurityContext> jwtProcessor = new DefaultJWTProcessor<>();
        JWSKeySelector<SecurityContext> jwsKeySelector = new JWSVerificationKeySelector<>(jwsAlgorithmSet, jwkSource);
        jwtProcessor.setJWSKeySelector(jwsKeySelector);
        jwtProcessor.setJWTClaimsSetVerifier(((jwtClaimsSet, securityContext) -> {}));
        return new NimbusJwtDecoder(jwtProcessor);
    }

    @Bean
    @Qualifier("refreshJwtDecoder")
    JwtDecoder refreshJwtDecoder(JWKSource<SecurityContext> refreshJwkSource) {
        Set<JWSAlgorithm> jwsAlgorithmSet = new HashSet<>(JWSAlgorithm.Family.RSA);
        ConfigurableJWTProcessor<SecurityContext> jwtProcessor = new DefaultJWTProcessor<>();
        JWSKeySelector<SecurityContext> jwsKeySelector = new JWSVerificationKeySelector<>(jwsAlgorithmSet, refreshJwkSource);
        jwtProcessor.setJWSKeySelector(jwsKeySelector);
        jwtProcessor.setJWTClaimsSetVerifier(((jwtClaimsSet, securityContext) -> {}));
        return new NimbusJwtDecoder(jwtProcessor);
    }
}
为啥我用 jwtEncoder 和 refreshJwtEncoder 生成的 token 是一样的？