avax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target2019-08-22 22:06:27.163  INFO 28106 --- [pool-3-thread-1] wxpay java sdk                           : get first report msg: 2019-08-22 22:06:27.164  INFO 28106 --- [pool-3-thread-1] wxpay java sdk                           : try get remain report msg at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1964) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:328) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:322) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1614) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052) at sun.security.ssl.Handshaker.process_record(Handshaker.java:987) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397) at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:396) at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:355) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) at org.apache.http.impl.conn.BasicHttpClientConnectionManager.connect(BasicHttpClientConnectionManager.java:323) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) at com.company.platform.base.config.wxpay.sdk.WXPayRequest.requestOnce(WXPayRequest.java:108) at com.company.platform.base.config.wxpay.sdk.WXPayRequest.request(WXPayRequest.java:127) at com.company.platform.base.config.wxpay.sdk.WXPayRequest.requestWithoutCert(WXPayRequest.java:232) at com.company.platform.base.config.wxpay.sdk.WXPay.requestWithoutCert(WXPay.java:158) at com.company.platform.base.config.wxpay.sdk.WXPay.unifiedOrder(WXPay.java:364) at com.company.platform.base.config.wxpay.sdk.WXPay.unifiedOrder(WXPay.java:340) at com.company.platform.restapi.service.hfss.impl.CourseApplyServiceImpl.unifiedorder(CourseApplyServiceImpl.java:474) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)