public static String getDefaultMtlsEndpoint() {
    return "websecurityscanner.mtls.googleapis.com:443";
  }
Returns the default mTLS service endpoint.
java-websecurityscanner/google-cloud-websecurityscanner/src/main/java/com/google/cloud/websecurityscanner/v1beta/stub/WebSecurityScannerStubSettings.java