mockserver-core/src/main/java/org/mockserver/configuration/ConfigurationProperties.java
public static void forwardProxyTLSCustomTrustX509Certificates(String customX509Certificates) {
        fileExists(customX509Certificates);
        System.setProperty(MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES, customX509Certificates);
        forwardProxyTLSCustomTrustX509Certificates = readPropertyHierarchically(MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES, "MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES", DEFAULT_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES);
    }
/**
     * File location of custom file for trusted X509 Certificate Authority roots for forwarded or proxied requests, the certificate chain must be a X509 PEM file.
     * <p>
     * MockServer will only be able to establish a TLS connection to endpoints that have an X509 certificate chain that is signed by one of the provided custom
     * certificates, i.e. where a path can be established from the endpoints X509 certificate to one or more of the custom X509 certificates provided.
     *
     * @param customX509Certificates custom set of trusted X509 certificate authority roots for forwarded or proxied requests in PEM format.
     */
File location of custom file for trusted X509 Certificate Authority roots for forwarded or proxied requests, the certificate chain must be a X509 PEM file.

MockServer will only be able to establish a TLS connection to endpoints that have an X509 certificate chain that is signed by one of the provided custom
certificates, i.e. where a path can be established from the endpoints X509 certificate to one or more of the custom X509 certificates provided.

@param customX509Certificates custom set of trusted X509 certificate authority roots for forwarded or proxied requests in PEM format.
File location of custom file for trusted X509 Certificate Authority roots for forwarded or proxied requests the certificate chain must be a X509 PEM file . MockServer will only be able to establish a TLS connection to endpoints that have an X509 certificate chain that is signed by one of the provided custom certificates i . e . where a path can be established from the endpoints X509 certificate to one or more of the custom X509 certificates provided . @param customX509Certificates custom set of trusted X509 certificate authority roots for forwarded or proxied requests in PEM format .
public static void forwardProxyTLSCustomTrustX509Certificates(String customX509Certificates) {
        fileExists(customX509Certificates);
        System.setProperty(MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES, customX509Certificates);
        forwardProxyTLSCustomTrustX509Certificates = readPropertyHierarchically(MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES, "MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES", DEFAULT_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES);
    }
public static void forwardProxyTLSCustomTrustX509Certificates ( String customX509Certificates ) { fileExists ( customX509Certificates ) ; System . setProperty ( MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES , customX509Certificates ) ; forwardProxyTLSCustomTrustX509Certificates = readPropertyHierarchically ( MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES , "MOCKSERVER_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES" , DEFAULT_FORWARD_PROXY_TLS_CUSTOM_TRUST_X509_CERTIFICATES ) ; }
File location of custom file for trusted X509 Certificate Authority roots for forwarded or proxied requests, the certificate chain must be a X509 PEM file.
File location of custom file for trusted X509 Certificate Authority roots for forwarded or proxied requests the certificate chain must be a X509 PEM file .