## Expected behaviour After the upgrade from 4.2.3 to 4.3, the server should be working fine without any issues. ## Resulted behaviour The gluu server is showing the error.htm webpage and the oxtrust logs is filled with certificate related issue.  ## oxtrust.log 2022-07-27 14:55:12,898 ERROR [qtp22671767-21] [org.gluu.oxauth.client.OpenIdConfigurationClient] (OpenIdConfigurationClient.java:153) - RESTEASY004655: Unable to invoke request: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target javax.ws.rs.ProcessingException: RESTEASY004655: Unable to invoke request: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.invoke(ManualClosingApacheHttpClient43Engine.java:287) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:488) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:65) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] at org.gluu.oxauth.client.OpenIdConfigurationClient.requestClientResponse(OpenIdConfigurationClient.java:170) ~[oxauth-client-4.3.1.Final.jar:?] at org.gluu.oxauth.client.OpenIdConfigurationClient._execOpenIdConfiguration(OpenIdConfigurationClient.java:131) ~[oxauth-client-4.3.1.Final.jar:?] at org.gluu.oxauth.client.OpenIdConfigurationClient.execOpenIdConfiguration(OpenIdConfigurationClient.java:109) ~[oxauth-client-4.3.1.Final.jar:?] at org.gluu.oxtrust.service.OpenIdService.loadOpenIdConfiguration(OpenIdService.java:61) ~[oxtrust-service-4.3.1.Final.jar:?] at org.gluu.oxtrust.service.OpenIdService.initInternal(OpenIdService.java:46) ~[oxtrust-service-4.3.1.Final.jar:?] at org.gluu.util.init.Initializable.init(Initializable.java:26) ~[oxcore-util-4.3.1.Final.jar:?] at org.gluu.oxtrust.service.OpenIdService.getOpenIdConfiguration(OpenIdService.java:73) ~[oxtrust-service-4.3.1.Final.jar:?] at org.gluu.oxtrust.service.OpenIdService$Proxy$_$$_WeldClientProxy.getOpenIdConfiguration(Unknown Source) ~[oxtrust-service-4.3.1.Final.jar:?] at org.gluu.oxtrust.action.Authenticator.getAuthorizationUrl(Authenticator.java:401) ~[classes/:?] at org.gluu.oxtrust.action.Authenticator.oAuthLogin(Authenticator.java:212) ~[classes/:?] at org.gluu.oxtrust.action.Authenticator.preAuthenticate(Authenticator.java:115) ~[classes/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?] at org.apache.el.parser.AstValue.invoke(AstValue.java:246) ~[org.mortbay.jasper.apache-el-8.5.70.jar:8.5.70] at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:266) ~[org.mortbay.jasper.apache-el-8.5.70.jar:8.5.70] at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40) ~[weld-web-3.1.8.Final.jar:3.1.8.Final] at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) ~[weld-web-3.1.8.Final.jar:3.1.8.Final] at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:65) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:66) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:82) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:71) ~[jakarta.faces-2.3.14.jar:2.3.14] at javax.faces.component.UIViewAction.broadcast(UIViewAction.java:548) ~[jakarta.faces-2.3.14.jar:2.3.14] at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:847) ~[jakarta.faces-2.3.14.jar:2.3.14] at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1396) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:58) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76) ~[jakarta.faces-2.3.14.jar:2.3.14] at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177) ~[jakarta.faces-2.3.14.jar:2.3.14] at javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:707) ~[jakarta.faces-2.3.14.jar:2.3.14] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:451) ~[jakarta.faces-2.3.14.jar:2.3.14] at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1450) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1631) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:228) ~[websocket-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600) ~[jetty-security-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:400) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:645) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:392) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927] at java.lang.Thread.run(Thread.java:829) [?:?] Caused by: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.ssl.Alert.createSSLException(Alert.java:131) ~[?:?] at sun.security.ssl.TransportContext.fatal(TransportContext.java:349) ~[?:?] at sun.security.ssl.TransportContext.fatal(TransportContext.java:292) ~[?:?] at sun.security.ssl.TransportContext.fatal(TransportContext.java:287) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) ~[?:?] at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:421) ~[?:?] at sun.security.ssl.TransportContext.dispatch(TransportContext.java:182) ~[?:?] at sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[?:?] at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1426) ~[?:?] at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1336) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:421) ~[?:?] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:436) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:384) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.13.jar:4.5.13] at org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.invoke(ManualClosingApacheHttpClient43Engine.java:268) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] ... 72 more Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439) ~[?:?] at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306) ~[?:?] at sun.security.validator.Validator.validate(Validator.java:264) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:313) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:222) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) ~[?:?] at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:421) ~[?:?] at sun.security.ssl.TransportContext.dispatch(TransportContext.java:182) ~[?:?] at sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[?:?] at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1426) ~[?:?] at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1336) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:421) ~[?:?] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:436) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:384) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.13.jar:4.5.13] at org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.invoke(ManualClosingApacheHttpClient43Engine.java:268) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] ... 72 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) ~[?:?] at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) ~[?:?] at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[?:?] at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434) ~[?:?] at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306) ~[?:?] at sun.security.validator.Validator.validate(Validator.java:264) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:313) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:222) ~[?:?] at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) ~[?:?] at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) ~[?:?] at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443) ~[?:?] at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:421) ~[?:?] at sun.security.ssl.TransportContext.dispatch(TransportContext.java:182) ~[?:?] at sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[?:?] at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1426) ~[?:?] at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1336) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450) ~[?:?] at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:421) ~[?:?] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:436) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:384) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.13.jar:4.5.13] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.13.jar:4.5.13] at org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.invoke(ManualClosingApacheHttpClient43Engine.java:268) ~[resteasy-client-4.5.7.Final.jar:4.5.7.Final] ... 72 more No other logs have any issue regarding this and also the server before the upgrade was working fine. Can you pls look into this issue. Thanks in advance