# Client not starting **URL:** \ **Category:** Classic Servoy\ **Created:** [January 24, 2016, 12:56pm UTC](https://forum.servoy.com/t/client-not-starting/18709 "2016-01-24T12:56:46Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![irene.meyer1422261887](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@irene.meyer1422261887](https://forum.servoy.com/u/irene.meyer1422261887)\ **Post date:** [January 24, 2016, 12:56pm UTC](https://forum.servoy.com/t/client-not-starting/18709/1 "2016-01-24T12:56:46Z")
Hi, I am performing a new installation of the application server on a brand new iMac. On the same machine I try to install also a client. but no matter what I do, it won’t start. I performed several nieuw installation of the application server and the client about 3 times and, of course cleared cache and removed resources from java. So fa I can understand from my searches on the internet it should be a certificate problem, but I have no idea how to solve it. The same application runs on another iMac without problems. This configuration is OSX version: 10.11.3 (15D21) java.version=1.8.0\_71 Servoy version 8.0.2 -releaseNumber 3024 The server log says: “multiplexer-reader-51f83325[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49352,localport=1099]]” Inn the servoy\_log.txt i have this: > 2016-01-24 13:21:00,821 ERROR [multiplexer-reader-5ee48f2a[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49247,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 51aa1786-c54d-4f67-9ce9-5567ffe1fad2 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,403 ERROR [multiplexer-reader-5b94285d[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49249,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 2fac19bc-e8b1-4e5a-8682-f47353f7875a > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,514 ERROR [multiplexer-reader-21f371da[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49251,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 68469ca1-7211-4bd1-a9dc-9b5e128bfbe6 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,536 ERROR [multiplexer-reader-51f456d[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49252,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client b7168a8b-b678-425f-a9d3-0ab2323d4eef > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,548 ERROR [multiplexer-reader-2aed318b[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49253,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 9e66f734-d55e-46b7-84cb-6e2a6c311763 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,561 ERROR [multiplexer-reader-5041324b[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49254,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client ce35a328-84e5-4f5d-b6ed-31384d54e231 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,573 ERROR [multiplexer-reader-15cde028[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49255,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 10b0984e-6d14-40c1-8901-12a0aac58f1a > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,590 ERROR [multiplexer-reader-566fea73[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49256,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client d177a7f4-e8c5-423c-abdc-40741d92d684 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,602 ERROR [multiplexer-reader-f65499f[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49257,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 62ce7fea-34b2-46ff-91c2-e34a2d503874 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,612 ERROR [multiplexer-reader-521f5b7f[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49258,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 88cf19ff-2170-4946-a0ce-5127a82ab1cc > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,624 ERROR [multiplexer-reader-28a93db4[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49259,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 3ce61e8d-f713-4664-a4d3-40dda5f53a54 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,634 ERROR [multiplexer-reader-13c76a0[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49260,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 9d6ff5c7-2a26-4e75-b5ec-c3e9a9b18687 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,641 ERROR [multiplexer-reader-2430fea9[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49261,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 46a38198-b0aa-4d67-851e-572979ecef1e > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,649 ERROR [multiplexer-reader-c5c8df3[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49262,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client cc537f3d-67a1-472c-9b99-bfede054504c > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,659 ERROR [multiplexer-reader-6d795551[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49263,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client fbd55572-3d34-4744-8f78-784ffe02c713 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,672 ERROR [multiplexer-reader-2c74d5c5[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49264,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 07924bd1-36ba-4e0b-9d06-a3d82d4db78c > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,684 ERROR [multiplexer-reader-44aff6ad[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49265,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client cad457bc-607e-4f38-b69d-f095c4027206 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,694 ERROR [multiplexer-reader-63dbe0b4[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49266,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 7c3521b9-5e06-431f-8f19-4737f9335712 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,704 ERROR [multiplexer-reader-79eaa000[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49267,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client a170a797-4ecf-429d-85e7-bed1fccbdba0 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,715 ERROR [multiplexer-reader-73ba9805[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49268,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client c0a19f4b-bdd9-4b78-8690-7690811f6c57 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,729 ERROR [multiplexer-reader-481b1241[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49269,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 02b25985-b716-4623-92f9-5b4474b21381 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,739 ERROR [multiplexer-reader-747995b6[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49270,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 6405a7a1-82bb-4b93-9e7c-f5f0e722014e > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,753 ERROR [multiplexer-reader-583fd199[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49271,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 9e9bec7c-be09-4b0c-9919-bf53632e4bea > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,762 ERROR [multiplexer-reader-7fe2002b[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49272,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client caccda6e-7e8b-4937-9266-549ea1a475f1 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,773 ERROR [multiplexer-reader-6f7b9c8c[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49273,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 75f92ccb-ea7f-44c9-a15f-4330d6816246 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,783 ERROR [multiplexer-reader-571760f0[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49274,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client b6961f13-2696-4ad7-b970-a92795884d56 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,793 ERROR [multiplexer-reader-7182d092[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49275,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client ee3e2d7f-2fec-43b0-8225-7752bb402328 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,804 ERROR [multiplexer-reader-1e0e75d1[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49276,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client a8c66021-f432-44c5-ab04-7523f8ebfa39 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,815 ERROR [multiplexer-reader-2d220560[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49277,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client f781c896-224b-4348-8b92-f29fc6a18473 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,827 ERROR [multiplexer-reader-415ef0d4[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49278,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client d4397705-aca1-4b78-97c4-62779cabf694 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,838 ERROR [multiplexer-reader-26bfbe2d[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49279,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 320b0cd4-badf-419c-ad09-dadb4bb92d70 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,849 ERROR [multiplexer-reader-4bf2f7d6[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49280,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 9dbdc8da-03db-44eb-9187-fcc2d1015544 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,862 ERROR [multiplexer-reader-76c6f2cd[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49281,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client d4910eb4-1fa3-49dd-87c9-549e0d89bf5b > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,871 ERROR [multiplexer-reader-40a87491[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49282,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client f88d0d2c-5ec1-4f3e-a4d8-fed782448104 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,882 ERROR [multiplexer-reader-1bbdf47f[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49283,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client d4d519c8-9d91-4943-bbb0-6134877c64cb > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,891 ERROR [multiplexer-reader-472dec99[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49284,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 33ba7ae7-4c03-4485-8a63-d801111e74a2 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,901 ERROR [multiplexer-reader-63c2e2b[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49285,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client d2d8f119-a92f-40e3-a94e-96d30009a4d9 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,910 ERROR [multiplexer-reader-5b3de81[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49286,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 4a6636bb-7dae-481e-baf9-6c7026d7a1f8 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,919 ERROR [multiplexer-reader-71d9dc44[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49287,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client b1db6498-ad7a-4992-8f19-12b9635ddef5 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,930 ERROR [multiplexer-reader-59b8afc2[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49288,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 5b832bc4-5870-4d6a-bd1e-6a873fcfb2e4 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,940 ERROR [multiplexer-reader-3e128fa8[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49289,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 3131ef5b-8046-406f-a57a-657d767ec748 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,950 ERROR [multiplexer-reader-254e193d[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49290,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client b23943a2-32f1-424d-a130-55ff43d396d2 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,961 ERROR [multiplexer-reader-1a4ada2c[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49291,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 7b01ea89-a41f-4d62-a923-ec58df10267c > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,970 ERROR [multiplexer-reader-690a018[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49292,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 6a73c391-e284-434b-ba22-0c4552ddc22b > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,979 ERROR [multiplexer-reader-2c5500ad[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49293,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 1b9c51d3-f120-44ef-94cb-ba9e40b6ff6e > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:01,988 ERROR [multiplexer-reader-798763eb[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49294,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client db184e3b-415a-4305-a35a-4dc54b111858 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,000 ERROR [multiplexer-reader-35505d4d[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49295,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 3f6b011c-8416-4be1-b9bf-d49618e2ecf0 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,009 ERROR [multiplexer-reader-3643bb9f[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49296,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 4740e46c-cef7-4bac-aadf-a900db229879 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,018 ERROR [multiplexer-reader-32178592[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49297,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 75196b27-b87d-4949-899c-0030fa72bfdb > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,029 ERROR [multiplexer-reader-704d2000[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49298,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client f295fce2-4dd6-4bc3-b05b-93fe4bf25ecb > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,039 ERROR [multiplexer-reader-47c0b171[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49299,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client f3de278c-fc61-416a-acd1-9ab167f895f2 > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) > 2016-01-24 13:21:02,050 ERROR [multiplexer-reader-6c747555[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/127.0.0.1,port=49300,localport=1099]]] com.sebster.tunnel.impl.od - multiplexer failed for client 63098218-fb55-4206-9600-604c8678afce > javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate\_unknown > at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) > at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) > at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) > at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) > at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) > at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:928) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) > at sun.security.ssl.AppInputStream.read(AppInputStream.java:71) > at com.sebster.tunnel.impl.xd.e(xd.java:39) > at com.sebster.tunnel.impl.lc.run(lc.java:18) > at java.lang.Thread.run(Thread.java:745) I’m grateful for any help. Cheers Irene ---
**Author:** ![mboegem](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.servoy.com/mboegem/32/4399_2.png) [@mboegem](https://forum.servoy.com/u/mboegem)\ **Post date:** [January 24, 2016, 7:26pm UTC](https://forum.servoy.com/t/client-not-starting/18709/2 "2016-01-24T19:26:22Z")
See [viewtopic.php?f=6&t=21147](https://www.servoy.com/forum/viewtopic.php?f=6&t=21147) As far as I can conclude: turn of SSL, restart server and it should work. ---
**Author:** ![willem1345100370](https://avatars.discourse-cdn.com/v4/letter/w/5fc32e/32.png) [@willem1345100370](https://forum.servoy.com/u/willem1345100370)\ **Post date:** [January 28, 2016, 6:32am UTC](https://forum.servoy.com/t/client-not-starting/18709/3 "2016-01-28T06:32:10Z")
Hi It seems that there is a problem with java 8.71. try going back a version or 2 and see if that works. Regards ---
**Author:** ![Bernd.N](https://avatars.discourse-cdn.com/v4/letter/b/7feea3/32.png) [@Bernd.N](https://forum.servoy.com/u/Bernd.N)\ **Post date:** [January 28, 2016, 8:48am UTC](https://forum.servoy.com/t/client-not-starting/18709/4 "2016-01-28T08:48:19Z")
It creates great discomfort amongst your users when they can not install the latest java version and have to switch back. We followed the advice to switch off SSL, started the Server new and all were happy. And for the future, it might be a good idea to test coming Java versions like the next 8u76 before users do it. Release candidates can be downloaded here: [http://www.oracle.com/technetwork/articles/java/ea-jsp-142245.html](http://www.oracle.com/technetwork/articles/java/ea-jsp-142245.html) Java 8u76 is scheduled for April 2016: [http://openjdk.java.net/projects/jdk8u/releases/8u76.html](http://openjdk.java.net/projects/jdk8u/releases/8u76.html) ![ssl.png](https://canada1.discourse-cdn.com/flex010/uploads/servoy/original/1X/edd534ba1b11bd8c275ebeb108287656fdd4a0e4.png)