[jcifs] Exception: Invalid access to memory location

[Richard Attermeyer]

We are encountering from time to time an exception (see below) with JCifs 
since we upgraded to Windows XP clients.
We are using jcifs-0.9.7.
Does anyone know what the problem is or what we look for?

jcifs.smb.SmbAuthException: Invalid access to memory location.
	at jcifs.smb.SmbComSessionSetupAndX.<init>
(SmbComSessionSetupAndX.java:46)
	at jcifs.smb.SmbSession.sessionSetup(SmbSession.java:246)
	at jcifs.smb.SmbSession.send(SmbSession.java:219)
	at jcifs.smb.SmbTree.treeConnect(SmbTree.java:134)
	at jcifs.smb.SmbSession.logon(SmbSession.java:155)
	at jcifs.smb.SmbSession.logon(SmbSession.java:150)
	at de.westlb_systems.sso.filter.WlbNtlmHttpFilter.doFilter
(WlbNtlmHttpFilter.java:188)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
	at westlb.gsf.servlet.LoginFilter.doFilter(LoginFilter.java:94)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
	at de.westlb_systems.sso.filter.WlbNtlmHttpFilter.doFilter
(WlbNtlmHttpFilter.java:220)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:260)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:191)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke
(StandardContext.java:2415)
	at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:180)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke
(ErrorDispatcherValve.java:170)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:172)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:174)
	at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe
xt(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service
(CoyoteAdapter.java:223)
	at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:432)
	at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnecti
on(Http11Protocol.java:386)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:534)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
(ThreadPool.java:530)
	at java.lang.Thread.run(Thread.java:536)