[jcifs] NtlmHttpFilter java.lang.ExceptionInInitializerError& java.lang.NoClassDefFoundError

[Mike Streeton]

Sergio,
   One tip when using windows authentication that solved a lot of our problems:

Only authenticate a single page. Put you filter on a subdirectory that contains a single servlet/jsp page that puts a value in the session indicating the user and that they have been authenticated, make sure this value can be serialized. Terminate NTLM search the archive of this list to find out how.

This works on the principle you only login once, not on every page. Simply add another filter to the rest of the application that checks for you serialized value stored in the session, if it is not present forward to NTLM filter servlet/jsp page.

Mike

www.ardentia.com the home of NetSearch
-----Original Message-----
From: jcifs-bounces+mike.streeton=ardentia.co.uk at lists.samba.org [mailto:jcifs-bounces+mike.streeton=ardentia.co.uk at lists.samba.org] On Behalf Of Sergio Mendonça
Sent: 14 June 2006 19:30
To: jcifs at lists.samba.org
Subject: Re: [jcifs] NtlmHttpFilter java.lang.ExceptionInInitializerError& java.lang.NoClassDefFoundError

Thanks for your help Mike!

I'm not using a cluster environment and the errors happens when the 
tomcat run normally.
In the server that the NtlmHttpFilter works fine the OS is Linux Fedora 
Core 4 and in the server that the problems occours, ths OS is Linux 
Fedora Core 5.
The two servers are 64 bits.
These are all the informations that i know for now.
How I could disabled session serialization?

Thanks again!
Sergio


Michael B Allen wrote:

>JCIFS does not work if the objects it puts into the session are
>serialized. This can happen in a cluster environment or when restarting
>a container.
>
>The only solution is to somehow disabled session serialization for
>the filter.
>
>There is a fundamental problem with trying to use a stateful
>authentication protocol (NTLM) over a stateless transport (HTTP).
>
>Mike
>
>On Wed, 14 Jun 2006 10:07:41 -0300
>Sergio Mendonça <sergio.mendonca at ebiz.com.br> wrote:
>
>  
>
>>Hi,
>>
>>Im trying to use the NtlmHttpFilter to authenticate the users and have 
>>some problems.
>>This is the configuration that i'm using in the web.xml:
>>
>><filter>
>>        <filter-name>NtlmHttpFilter</filter-name>
>>        <filter-class>jcifs.http.NtlmHttpFilter</filter-class>
>>        <init-param>
>>            <param-name>jcifs.smb.client.domain</param-name>
>>            <param-value>celos</param-value>
>>        </init-param>
>>        <init-param>
>>            <param-name>jcifs.netbios.wins</param-name>
>>            <param-value>192.168.13.230</param-value>
>>        </init-param>
>>        <init-param>
>>            <param-name>jcifs.netbios.cachePolicy</param-name>
>>            <param-value>0</param-value>
>>        </init-param>
>>        <init-param>
>>            <param-name>jcifs.util.loglevel</param-name>
>>            <param-value>3</param-value>
>>        </init-param>
>>        <init-param>
>>                <param-name>jcifs.smb.client.username</param-name>
>>                <param-value>operador</param-value>
>>        </init-param>
>>        <init-param>
>>            <param-name>jcifs.smb.client.password</param-name>
>>            <param-value>operador2003</param-value>
>>        </init-param>
>>    </filter>
>>    <filter-mapping>
>>        <filter-name>NtlmHttpFilter</filter-name>
>>        <url-pattern>/*</url-pattern>
>>    </filter-mapping>
>>
>>This configuration works perfectly in others servers, but in the 
>>production server does'nt work, generating this 2 errors listed below:
>>*
>>1-*
>>ERROR 13/06/2006 13:06:30,656 
>>org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/cadastro].[default] 
>>- Servlet.service() for servlet default threw exception
>> java.lang.ExceptionInInitializerError
>>    at jcifs.smb.SmbSession.getChallengeForDomain(SmbSession.java:95)
>>    at jcifs.http.NtlmHttpFilter.negotiate(NtlmHttpFilter.java:150)
>>    at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:114)
>>    at 
>>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
>>    at 
>>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
>>    at 
>>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>    at 
>>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
>>    at 
>>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
>>    at 
>>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
>>    at 
>>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
>>    at 
>>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>    at 
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>    at 
>>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
>>    at 
>>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
>>    at 
>>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
>>    at 
>>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
>>    at java.lang.Thread.run(Thread.java:595)
>>Caused by: java.lang.NullPointerException
>>    at jcifs.netbios.NbtAddress.<clinit>(NbtAddress.java:199)
>>    ... 17 more
>>
>>*2-*
>>ERROR 13/06/2006 13:06:31,744 
>>org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/cadastro].[default] 
>>- Servlet.service() for servlet default threw exception
>> java.lang.NoClassDefFoundError
>>    at jcifs.smb.SmbSession.getChallengeForDomain(SmbSession.java:95)
>>    at jcifs.http.NtlmHttpFilter.negotiate(NtlmHttpFilter.java:150)
>>    at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:114)
>>    at 
>>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
>>    at 
>>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
>>    at 
>>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>    at 
>>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
>>    at 
>>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
>>    at 
>>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
>>    at 
>>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
>>    at 
>>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>    at 
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>    at 
>>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
>>    at 
>>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
>>    at 
>>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
>>    at 
>>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
>>    at java.lang.Thread.run(Thread.java:595)
>>
>>The login dialog is shown, i set the username and password, then the 
>>error #1 occurs.
>>After this, the error #2 passes to occour.
>>
>>Somebody can help me?
>>Thanks
>>
>>Sergio Mendonça
>>
>>    
>>
>
>
>  
>