Develop Reference

Azure Spring Boot ZipException

I've got a spring boot rest service with embedded tomcat deployed on an Azure App Service and I am experiencing intermittent outages, every few weeks.
Every time there is an outage the logs contain the following entries:
Message: java.util.zip.ZipException: ZIP_Read: error reading zip file ZIP_Read: error reading zip file
Exception type: java.util.zip.ZipException
Failed method: java.util.zip.ZipFile.access$1400
With the following call stack.
java.lang.IllegalStateException:
at org.apache.catalina.webresources.JarWarResourceSet.getArchiveEntries (JarWarResourceSet.java133)
at org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource (AbstractArchiveResourceSet.java256)
at org.apache.catalina.webresources.StandardRoot.getResourceInternal (StandardRoot.java281)
at org.apache.catalina.webresources.CachedResource.validateResource (CachedResource.java97)
at org.apache.catalina.webresources.Cache.getResource (Cache.java69)
at org.apache.catalina.webresources.StandardRoot.getResource (StandardRoot.java216)
at org.apache.catalina.webresources.StandardRoot.getResource (StandardRoot.java206)
at org.apache.catalina.mapper.Mapper.internalMapWrapper (Mapper.java1027)
at org.apache.catalina.mapper.Mapper.internalMap (Mapper.java842)
at org.apache.catalina.mapper.Mapper.map (Mapper.java698)
at org.apache.catalina.connector.CoyoteAdapter.postParseRequest (CoyoteAdapter.java679)
at org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java336)
at org.apache.coyote.http11.Http11Processor.service (Http11Processor.java803)
at org.apache.coyote.AbstractProcessorLight.process (AbstractProcessorLight.java66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process (AbstractProtocol.java868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun (NioEndpoint.java1459)
at org.apache.tomcat.util.net.SocketProcessorBase.run (SocketProcessorBase.java49)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run (TaskThread.java61)
at java.lang.Thread.run (Thread.java748)
Inner exception java.util.zip.ZipException handled at org.apache.catalina.webresources.JarWarResourceSet.getArchiveEntries:
at java.util.zip.ZipFile.access$1400 (ZipFile.java60)
at java.util.zip.ZipFile$ZipFileInputStream.read (ZipFile.java734)
at java.io.FilterInputStream.read (FilterInputStream.java133)
at java.io.PushbackInputStream.read (PushbackInputStream.java186)
at java.util.zip.ZipInputStream.readFully (ZipInputStream.java403)
at java.util.zip.ZipInputStream.readLOC (ZipInputStream.java278)
at java.util.zip.ZipInputStream.getNextEntry (ZipInputStream.java122)
at java.util.jar.JarInputStream.<init> (JarInputStream.java83)
at java.util.jar.JarInputStream.<init> (JarInputStream.java62)
at org.apache.catalina.webresources.TomcatJarInputStream.<init> (TomcatJarInputStream.java37)
at org.apache.catalina.webresources.JarWarResourceSet.getArchiveEntries (JarWarResourceSet.java108)
at org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource (AbstractArchiveResourceSet.java256)
at org.apache.catalina.webresources.StandardRoot.getResourceInternal (StandardRoot.java281)
at org.apache.catalina.webresources.CachedResource.validateResource (CachedResource.java97)
at org.apache.catalina.webresources.Cache.getResource (Cache.java69)
at org.apache.catalina.webresources.StandardRoot.getResource (StandardRoot.java216)
at org.apache.catalina.webresources.StandardRoot.getResource (StandardRoot.java206)
at org.apache.catalina.mapper.Mapper.internalMapWrapper (Mapper.java1027)
at org.apache.catalina.mapper.Mapper.internalMap (Mapper.java842)
at org.apache.catalina.mapper.Mapper.map (Mapper.java698)
at org.apache.catalina.connector.CoyoteAdapter.postParseRequest (CoyoteAdapter.java679)
at org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java336)
at org.apache.coyote.http11.Http11Processor.service (Http11Processor.java803)
at org.apache.coyote.AbstractProcessorLight.process (AbstractProcessorLight.java66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process (AbstractProtocol.java868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun (NioEndpoint.java1459)
at org.apache.tomcat.util.net.SocketProcessorBase.run (SocketProcessorBase.java49)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run (TaskThread.java61)
at java.lang.Thread.run (Thread.java748)
As soon as this occurs, all calls to the rest service returns a 500 and the log gets another entry like above. This continues until I manually reboot the app service.
I'm struggling to figure out what is the issue. Googling the exception only returns results for issues with opening zip files. The app does not do any zipping/unzipping in itself and the call stack seems to indicate that it's tomcat things(that could be caused by something I've done on Azure, in SpringBoot, the JVM or something else entirely).
CPU or memory usage appear to be fine preceding the outages so that doesn't seem to be a factor.
This issue is not preceded by any deployments or platform changes.
I'm stumped regarding what to do next, if anyone can point me in the right direction to investigate, it'll be much appreciated.

Log4J2 Factory Error when attempting to use SMTP Appender

Good afternoon,
When I attempt to use the SMTP Appender, I get an odd error in the console. The error appears to occur when the XML file is loaded, as it isn't logged via any output stream except stdout. The contents of the appender are as follows (and I have confirmed that the error is in this block of XML). I've removed our server information.
<SMTP name="Mailer">
<Subject>[ERROR] (software name) on ${hostName} has thrown a fatal error</Subject>
<To>(a valid email in the form of a#a.com)</To>
<From>(a valid email in the form of a#a.com)</From>
<SMTPHost>(The Internal IP address of a server in the form of 192.168.0.1)</SMTPHost>
<SMTPPort>587</SMTPPort>
<BufferSize>512</BufferSize>
</SMTP>
Whether or not it is referenced in a logger, I receive the following error immediately upon running the program and running getLogger from the log manager. I've removed a couple of the file names and replaced them with a rough description of what the file is doing at that point.
2015-05-19 19:08:18,812 ERROR Unable to invoke factory method in class class org.apache.logging.log4j.core.appender.SmtpAppender for element SMTP. java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:137)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:766)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:706)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:698)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:358)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:161)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:361)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:426)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:442)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:138)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:147)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:41)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:175)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:426)
at (Our Log Interface Class, which essentially just returns the log passed by the Apache log manager)
at (The global variable definition file, the first method to use getLogger)
at (The main method for our software, where the globals are loaded)
Caused by: java.lang.NoSuchMethodError: javax.mail.Session.setProtocolForAddress(Ljava/lang/String;Ljava/lang/String;)V
at org.apache.logging.log4j.core.net.SmtpManager$SMTPManagerFactory.createManager(SmtpManager.java:325)
at org.apache.logging.log4j.core.net.SmtpManager$SMTPManagerFactory.createManager(SmtpManager.java:299)
at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:71)
at org.apache.logging.log4j.core.net.SmtpManager.getSMTPManager(SmtpManager.java:124)
at org.apache.logging.log4j.core.appender.SmtpAppender.createAppender(SmtpAppender.java:142)
... 21 more
2015-05-19 19:08:18,814 ERROR Null object returned for SMTP in Appenders.
2015-05-19 19:08:18,819 ERROR Unable to locate appender Mailer for logger fatalerror
The details of the configuration are correct (I know it's a valid IP, etc) - they worked in log4j 1. The error log tells me virtually nothing about the error, so I am hoping someone has heard of this before. Thanks everyone!

This is the important line from your stacktrace:
Caused by: java.lang.NoSuchMethodError: javax.mail.Session.setProtocolForAddress(Ljava/lang/String;Ljava/lang/String;)V
The setProtocolForAddress method has been part of JavaMail since version 1.4, so this suggests to me that you are using an old version of that JAR. If you are, try upgrading to a later version.

Note that log4j2 has many lookups, not just system properties. So you need to convert ${hostName} to ${sys:hostName}, and if you are using a lookup for the IP address, this may be the cause of the issue. (Try hardcoding all lookup values to exclude this possibility.)

can't serialize session for resin request

[13-04-27 11:27:30.890] {resin-port-10.156.76.24:8084-48} SessionImpl[aaaJ3Dcydow_igIqaIj5t,]: can't serialize session
java.lang.IllegalStateException: block Block[Table[mnode:2],72002] is not an index code=0
at com.caucho.db.block.Block.validateIsIndex(Block.java:152)
at com.caucho.db.index.BTree.validateIndex(BTree.java:1727)
at com.caucho.db.index.BTree.lookup(BTree.java:197)
at com.caucho.db.index.BTree.lookup(BTree.java:212)
at com.caucho.db.index.BTree.lookup(BTree.java:168)
at com.caucho.db.sql.IndexExpr.evalIndex(IndexExpr.java:152)
at com.caucho.db.sql.IndexExpr.initRow(IndexExpr.java:104)
at com.caucho.db.sql.Query$TailInitRow.initBlockRow(Query.java:952)
at com.caucho.db.sql.Query.start(Query.java:727)
at com.caucho.db.sql.SelectQuery.execute(SelectQuery.java:209)
at com.caucho.db.sql.SelectQuery.execute(SelectQuery.java:171)
at com.caucho.db.jdbc.PreparedStatementImpl.execute(PreparedStatementImpl.java:357)
at com.caucho.db.jdbc.PreparedStatementImpl.executeQuery(PreparedStatementImpl.java:325)
at com.caucho.server.distcache.MnodeStore.load(MnodeStore.java:535)
at com.caucho.server.distcache.CacheDataBackingImpl.loadLocalEntryValue(CacheDataBackingImpl.java:108)
at com.caucho.server.distcache.DistCacheEntry.loadLocalMnodeValue(DistCacheEntry.java:1189)
at com.caucho.server.distcache.CacheEntryManager.createCacheEntry(CacheEntryManager.java:83)
at com.caucho.server.distcache.CacheStoreManager.getCacheEntry(CacheStoreManager.java:143)
at com.caucho.server.distcache.CacheImpl.getDistCacheEntry(CacheImpl.java:663)
at com.caucho.server.distcache.CacheImpl.put(CacheImpl.java:459)
at com.caucho.server.session.SessionImpl.save(SessionImpl.java:906)
at com.caucho.server.session.SessionImpl.saveAfterRequest(SessionImpl.java:869)
at com.caucho.server.session.SessionImpl.finishRequest(SessionImpl.java:645)
at com.caucho.server.http.AbstractCauchoRequest.finishRequest(AbstractCauchoRequest.java:1047)
at com.caucho.server.http.HttpServletRequestImpl.finishRequest(HttpServletRequestImpl.java:1692)
at com.caucho.server.http.AbstractHttpRequest.finishRequest(AbstractHttpRequest.java:1848)
at com.caucho.server.http.HttpRequest.finishRequest(HttpRequest.java:1487)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:870)
at com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:1342)
at com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:1298)
at com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:1282)
at com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:1190)
at com.caucho.network.listen.TcpSocketLink.handleAcceptTaskImpl(TcpSocketLink.java:989)
at com.caucho.network.listen.ConnectionTask.runThread(ConnectionTask.java:117)
at com.caucho.network.listen.ConnectionTask.run(ConnectionTask.java:93)
at com.caucho.network.listen.SocketLinkThreadLauncher.handleTasks(SocketLinkThreadLauncher.java:169)
at com.caucho.network.listen.TcpSocketAcceptThread.run(TcpSocketAcceptThread.java:61)
at com.caucho.env.thread2.ResinThread2.runTasks(ResinThread2.java:173)
at com.caucho.env.thread2.ResinThread2.run(ResinThread2.java:118)
it happens such kind of error for my resin webserver, I have several resin servers and only one server throw out such error suddenly.

remove the resin-data diretory,then restart resin

It looks like you might have a database corruption there ...
Possibly related Resin bug report: http://bugs.caucho.com/view.php?id=4956
The resolution for the bug report says "Fixed", so you should probably check your Resin installation is up to date.

Changes to a Lotus Domino xpages java application do not propagate to the server

Using Lotus Domino 8.5.2 Fixpack 3
The title sums it up. I have an xpages application that uses java. It seems that any java changes I make, never become visible on the server. It sounds a dead ringer for a cache issue of some kind. The application runs on the server and I see System.out.println statements in the server log, but do not any of the changes I've made to those statements or any new ones I've added.
The code is set to Rebuild Automatically. Still, it never looks like the server sees the changes. Is there some special way I need to build the database (aside from the typical Rebuild All)? Do I need to reset or restart some process on the domino server for it to see the changes?
Any thoughts or ideas would be greatly appreciated.
EDIT 1
I'm returning to this project and, hence, this question. The specific error message I'm getting is:
[6815810:00012-05659] 03/19/2013 09:27:01 HTTP JVM: Managedbean Calendar could not be created Can't instantiate class: 'calendar.CalendarServices'.. java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: calendar.CalendarServices. For more detailed inform
ation, please consult error-log-0
[6815810:00012-05659] 03/19/2013 09:27:01 HTTP JVM: xml located in /local/notesdata/domino/workspace/logs
[6815810:00012-05659] 03/19/2013 09:27:01 HTTP JVM: com.ibm.xsp.exception.EvaluationExceptionEx: Error while executing JavaScript action expression
I've tried unchecking automatic build and doing a clean --> rebuild all. I've tried signing the nsf again. I've ensured that I'm on the acl. And, as recommended, I've tried the
restart task http
Command via live console. No matter what I do I'm getting this error. The odd thing is that this project is just a copy --> paste (with rename) of another one that works fine. So, the project works...until I change and recompile...
The log that exception above points to wasn't very helpful. It reads:
<CommonBaseEvent creationTime="2013-03-05T09:01:03.254-06:00" globalInstanceId="EL0a04a8b800013d3af27da200000008" msg="Managedbean Calendar could not be created Can&apos;t instantiate class: &apos;calendar.CalendarServices&apos;.. java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: calendar.CalendarServices" severity="50" version="1.0.1">
<extendedDataElements name="CommonBaseEventLogRecord:level" type="noValue">
<children name="CommonBaseEventLogRecord:name" type="string">
<values>SEVERE</values>
</children>
</extendedDataElements>
<extendedDataElements name="CommonBaseEventLogRecord:sourceClassName" type="string">
<values>com.sun.faces.application.ApplicationAssociate</values>
</extendedDataElements>
<extendedDataElements name="CommonBaseEventLogRecord:sourceMethodName" type="string">
<values>createAndMaybeStoreManagedBeans</values>
</extendedDataElements>
<extendedDataElements name="CommonBaseEventLogRecord:Exception" type="string">
<values>javax.faces.FacesException: Can&apos;t instantiate class: &apos;calendar.CalendarServices&apos;.. java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: calendar.CalendarServices
at com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:234)
at com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:291)
at com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:135)
at com.ibm.xsp.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:71)
at com.ibm.xsp.javascript.ServerSideLocalObject.resolveVariable(ServerSideLocalObject.java:97)
at com.ibm.xsp.javascript.ServerSideLocalObject.resolveAttribute(ServerSideLocalObject.java:73)
at com.ibm.xsp.javascript.AbstractLocalObject._get(AbstractLocalObject.java:119)
at com.ibm.xsp.javascript.AbstractLocalObject.getPropertyReference(AbstractLocalObject.java:101)
at com</values>
<values>.ibm.jscript.engine.ProgramContext.findGlobalScopeIdentifier(ProgramContext.java:143)
at com.ibm.jscript.engine.ProgramContext.findIdentifier(ProgramContext.java:134)
at com.ibm.jscript.ASTTree.ASTIdentifier.interpret(ASTIdentifier.java:105)
at com.ibm.jscript.ASTTree.ASTMember.interpret(ASTMember.java:106)
at com.ibm.jscript.ASTTree.ASTCall.interpret(ASTCall.java:88)
at com.ibm.jscript.ASTTree.ASTArgumentList.interpretArguments(ASTArgumentList.java:63)
at com.ibm.jscript.types.FBSObject.call(FBSObject.java:153)
at com.ibm.jscript.ASTTree.ASTCall.interpret(ASTCall.java:175)
at com.ibm.jscript.ASTTree.ASTIf.interpret(ASTIf.java:85)
at com.ibm.jscript.ASTTree.ASTTry.interpret(ASTTry.java:109)
at com.ibm.jscript.ASTTree.ASTProgram.interpret(ASTProgram.java:119)
at com.ibm.jscript.ASTTree.ASTProgram.interpretEx(ASTProgram.java:139)
at com.ibm.jscript.JSExpression._interpretExpression(JSExpression.java:435)</values>
<values>
at com.ibm.jscript.JSExpression.access$1(JSExpression.java:424)
at com.ibm.jscript.JSExpression$2.run(JSExpression.java:414)
at java.security.AccessController.doPrivileged(AccessController.java:284)
at com.ibm.jscript.JSExpression.interpretExpression(JSExpression.java:410)
at com.ibm.jscript.JSExpression.evaluateValue(JSExpression.java:251)
at com.ibm.jscript.JSExpression.evaluateValue(JSExpression.java:234)
at com.ibm.xsp.javascript.JavaScriptInterpreter.interpret(JavaScriptInterpreter.java:220)
at com.ibm.xsp.binding.javascript.JavaScriptMethodBinding.invoke(JavaScriptMethodBinding.java:111)
at com.ibm.xsp.component.UIViewRootEx.invokePhaseMethodBinding(UIViewRootEx.java:1705)
at com.ibm.xsp.controller.FacesControllerImpl.invokePhaseMethodBinding(FacesControllerImpl.java:444)
at com.ibm.xsp.controller.FacesControllerImpl.access$0(FacesControllerImpl.java:438)
at com.ibm.xsp.controller.FacesControllerImpl$</values>
<values>ViewPhaseListener.afterPhase(FacesControllerImpl.java:506)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:218)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:120)
at com.ibm.xsp.controller.FacesControllerImpl.render(FacesControllerImpl.java:264)
at com.ibm.xsp.webapp.FacesServlet.serviceView(FacesServlet.java:219)
at com.ibm.xsp.webapp.FacesServletEx.serviceView(FacesServletEx.java:193)
at com.ibm.xsp.webapp.FacesServlet.service(FacesServlet.java:154)
at com.ibm.xsp.webapp.FacesServletEx.service(FacesServletEx.java:137)
at com.ibm.xsp.webapp.DesignerFacesServlet.service(DesignerFacesServlet.java:86)
at com.ibm.designer.runtime.domino.adapter.ComponentModule.invokeServlet(ComponentModule.java:538)
at com.ibm.domino.xsp.module.nsf.NSFComponentModule.invokeServlet(NSFComponentModule.java:1151)
at com.ibm.designer.runtime.domino.adapter.ComponentModule$AdapterInvoker.invokeServl</values>
<values>et(ComponentModule.java:803)
at com.ibm.designer.runtime.domino.adapter.ComponentModule$ServletInvoker.doService(ComponentModule.java:758)
at com.ibm.designer.runtime.domino.adapter.ComponentModule.doService(ComponentModule.java:527)
at com.ibm.domino.xsp.module.nsf.NSFComponentModule.doService(NSFComponentModule.java:1135)
at com.ibm.domino.xsp.module.nsf.NSFService.doServiceInternal(NSFService.java:523)
at com.ibm.domino.xsp.module.nsf.NSFService.doService(NSFService.java:352)
at com.ibm.designer.runtime.domino.adapter.LCDEnvironment.doService(LCDEnvironment.java:304)
at com.ibm.designer.runtime.domino.adapter.LCDEnvironment.service(LCDEnvironment.java:261)
at com.ibm.domino.xsp.bridge.http.engine.XspCmdManager.service(XspCmdManager.java:291)
Caused by: java.security.PrivilegedActionException: java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: calendar.CalendarServices
at java.security.AccessController</values>
<values>.doPrivileged(AccessController.java:255)
at com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:216)
... 51 more
Caused by: java.lang.ClassNotFoundException: class java.lang.ClassNotFoundException: calendar.CalendarServices
at java.beans.Beans.instantiate(Beans.java:194)
at java.beans.Beans.instantiate(Beans.java:75)
at com.sun.faces.config.ManagedBeanFactory$1.run(ManagedBeanFactory.java:222)
at java.security.AccessController.doPrivileged(AccessController.java:251)
... 52 more
</values>
</extendedDataElements>
<sourceComponentId component="Expeditor 6.2" componentIdType="ProductName" instanceId="" location="<server here>" locationType="Hostname" subComponent="com.sun.faces.application.ApplicationImpl" threadId="0" componentType="http://www.w3.org/2001/XMLSchema-instance"/>
<situation categoryName="ReportSituation">
<situationType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ReportSituation" reasoningScope="INTERNAL" reportCategory="LOG"/>
</situation>
</CommonBaseEvent>
As ever, penny for your thoughts.
Also, thank you all for your feedback. I'm sorry I've been away for a bit and neglected this question. I really would like to figure this out.

You didn't mention Project -> Clean so try that first.
I had once similar problem that was caused by an underscore in class or package name.
If the problem exists also for XPages then it's a a general build problem. This can occur at least when developers with different Designer and/or ExtLib versions modify the application. When I had this problem the only way to fix it was to create a new application and copy paste everything there. In our case the other developer never had the problem.

This is just silly. My src folder wasn't on the build path. That was causing all the issues.

xSocket ExtendedClosedChannelException

I have an error that I sometimes met. The error stack trace is below;
2011-05-04-xWorkerPool-1-thread-2--FATAL-su.games.engine.communication.gameSocketDataHandler:ServiceSocketDataHandler.onData:
could not write. channel is close or not initialized (id=25c1031512fb560155a71db6548S1517c (closed))-----
org.xsocket.connection.ExtendedClosedChannelException: could not write. channel is close or not initialized (id=25c1031512fb560155a71db6548S1517c (closed))
at org.xsocket.connection.AbstractNonBlockingStream.ensureStreamIsOpenAndWritable(AbstractNonBlockingStream.java:1537)
at org.xsocket.connection.AbstractNonBlockingStream.write(AbstractNonBlockingStream.java:1054)
at org.xsocket.connection.AbstractNonBlockingStream.write(AbstractNonBlockingStream.java:1039)
at su.games.engine.communication.ServiceSocketDataHandler.onData(ServiceSocketDataHandler.java:63)
at org.xsocket.connection.HandlerAdapter.performOnData(HandlerAdapter.java:242)
at org.xsocket.connection.HandlerAdapter.access$200(HandlerAdapter.java:42)
at org.xsocket.connection.HandlerAdapter$PerformOnDataTask.run(HandlerAdapter.java:210)
at org.xsocket.SerializedTaskQueue.performPendingTasks(SerializedTaskQueue.java:161)
at org.xsocket.SerializedTaskQueue.access$100(SerializedTaskQueue.java:40)
at org.xsocket.SerializedTaskQueue$MultithreadedTaskProcessor.run(SerializedTaskQueue.java:189)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I use the xSocket 2.8.15 version(jar). Sorry for the tag I have permission issue to create a new tag.The error can be defined as follows. I have number of INonBlockingConnection object and when I try to write some data by using the nbc.write() I get an error as defined above. I search the google and visit the xSocket mailing list. But I can not find any solution. I need some help. Thanks the site StackOverflow and help sorry for the English. I am waiting your advice.
KingSpeech.

The error appears fairly self explanatory. It appears that your connection has been closed or failed to connect. This is most likely due to a problem on the other side (or your network)