问http上传文件正常，https上传文件异常？

CosXmlServiceConfig serviceConfig = new CosXmlServiceConfig.Builder()
        .setRegion(CosConfig.REGION)
        .isHttps(false) // 使用 HTTPS 请求, 默认为 HTTP 请求
        .setConnectionTimeout(10 * 1000)
        .setSocketTimeout(10 * 1000)
        .builder();

Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.

at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:229)

at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:319)

at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:283)

at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:168)