# multiplexer-reader ERROR **URL:** \ **Category:** Classic Servoy\ **Created:** [December 11, 2011, 4:17pm UTC](https://forum.servoy.com/t/multiplexer-reader-error/15163 "2011-12-11T16:17:34Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![maarten](https://avatars.discourse-cdn.com/v4/letter/m/ecccb3/32.png) [@maarten](https://forum.servoy.com/u/maarten)\ **Post date:** [December 11, 2011, 4:17pm UTC](https://forum.servoy.com/t/multiplexer-reader-error/15163/1 "2011-12-11T16:17:34Z")
I’m getting this error message couple of times per minute in the servoy admin log 2011-12-11 17:05 multiplexer-reader-aeb7058[SSL\_NULL\_WITH\_NULL\_NULL: Socket[addr=/xxxxxxxx,port=62104,localport=1099]] ERROR com.sebster.tunnel.impl.q multiplexer failed for client 31b9f9ee-aa9f-421c-b6cb-ff52f60c0af7 web/smart clients aren’t getting any errors and seem to function normally. Any thoughts? STACKDUMP ```auto Server Information Servoy version 6.0.3 -build 1223 Port used by RMI Registry: 1099 Repository version 40 Current time: Sun Dec 11 17:07:16 CET 2011 Uptime: 16 minutes 4 seconds JDK Information java.vm.name=Java HotSpot(TM) 64-Bit Server VM java.version=1.6.0_26 java.vm.info=mixed mode java.vm.vendor=Apple Inc. Operating System Information os.name=Mac OS X os.version=10.6.8 os.arch=x86_64 System Information Heap Space Memory: allocated=99468K, used=67717K, max=1306496K Non-Heap Space Memory: allocated=120740K, used=74071K, max=180224K Thread: multiplexer-reader-5443563e[SSL_NULL_WITH_NULL_NULL: Socket[addr=/xxxxxxx,port=53470,localport=80]], state: WAITING, total cpu time: 5.193ms, total user time: 4.773ms sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987) com.sebster.tunnel.impl.j.a(j.java:213) com.sebster.tunnel.impl.j.read(j.java:117) com.sun.net.ssl.internal.ssl.InputRecord.readFully(InputRecord.java:293) com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:331) com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:798) com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:755) com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75) com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:50) com.sebster.tunnel.impl.uc.b(uc.java:43) com.sebster.tunnel.impl.yc.run(yc.java:98) java.lang.Thread.run(Thread.java:680) Thread: pool-9-thread-1, state: WAITING, total cpu time: 0.282ms, total user time: 0.141ms sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987) java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) java.lang.Thread.run(Thread.java:680) ``` SERVER LOG FILE ```auto Dec 11, 2011 4:26:04 PM org.apache.coyote.http11.Http11Protocol pause INFO: Pausing Coyote HTTP/1.1 on http-8080 Dec 11, 2011 4:26:28 PM org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 Dec 11, 2011 4:26:28 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 840 ms Dec 11, 2011 4:26:28 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Dec 11, 2011 4:26:28 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.32 Dec 11, 2011 4:26:29 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory ROOT Dec 11, 2011 4:26:29 PM org.apache.catalina.session.StandardManager doLoad SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.servoy.j2db.server.headlessclient.FormAnchorInfo java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.servoy.j2db.server.headlessclient.FormAnchorInfo at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1332) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at java.util.TreeMap.buildFromSorted(TreeMap.java:2380) at java.util.TreeMap.buildFromSorted(TreeMap.java:2322) at java.util.TreeMap.readTreeSet(TreeMap.java:2274) at java.util.TreeSet.readObject(TreeSet.java:518) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1666) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1322) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1666) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1322) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1485) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:987) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394) at org.apache.catalina.session.StandardManager.load(StandardManager.java:321) at org.apache.catalina.session.StandardManager.start(StandardManager.java:648) at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:446) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1315) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.servoy.j2db.server.main.WebServer.startWebServer(WebServer.java:68) at com.servoy.j2db.server.main.ApplicationServer.startWebServer(ApplicationServer.java:602) at com.servoy.j2db.server.main.ApplicationServer.main(ApplicationServer.java:145) ``` ---
**Author:** ![jcompagner](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.servoy.com/jcompagner/32/4889_2.png) [@jcompagner](https://forum.servoy.com/u/jcompagner)\ **Post date:** [December 13, 2011, 10:10am UTC](https://forum.servoy.com/t/multiplexer-reader-error/15163/2 "2011-12-13T10:10:42Z")
this tunnel is purely smart clients. i guess some are dropping connections a few times, this can be because of there network connection or when they just close/suspend there laptops. Is it constantly the same client id? ---
**Author:** ![maarten](https://avatars.discourse-cdn.com/v4/letter/m/ecccb3/32.png) [@maarten](https://forum.servoy.com/u/maarten)\ **Post date:** [December 13, 2011, 12:20pm UTC](https://forum.servoy.com/t/multiplexer-reader-error/15163/3 "2011-12-13T12:20:45Z")
I went through all server settings again and removed this line in the admin page from system.properties system.property.SocketFactory.tunnelConnectionMode=http This line was overlapping the setting in Adminpage\> Networksettings (that one was set to http&socket) No multiplexer-reader errors anymore.