kotlin spring restTemplate okHttp ignore ssl

RestTemplateConfig.kt

@Configuration
class RestTemplateConfig {
    @Bean
    fun restTemplate(builder: RestTemplateBuilder): RestTemplate {
        return builder.requestFactory {
            val trustAllCerts: Array<TrustManager> = arrayOf(object : X509TrustManager {
                override fun checkClientTrusted(chain: Array<out X509Certificate>?, authType: String?) {
                }

                override fun checkServerTrusted(chain: Array<out X509Certificate>?, authType: String?) {
                }

                override fun getAcceptedIssuers(): Array<X509Certificate> {
                    return arrayOf()
                }
            })
            val sslContext = SSLContext.getInstance("SSL")
            sslContext.init(null, trustAllCerts, SecureRandom())
            val okHttpBuilder = OkHttpClient.Builder()
            okHttpBuilder.sslSocketFactory(sslContext.socketFactory, trustAllCerts[0] as X509TrustManager)
            okHttpBuilder.hostnameVerifier { _, _ -> true }
            OkHttp3ClientHttpRequestFactory(okHttpBuilder.build())
        }.build()
    }
}