Many thanks Jan. Your advise works. An example of correct setup is on
http://www.bytes2business.de/b2b_app/forumdetail.jsp?entry_id=408 as
well. Peter
Jan Bartel wrote:
Peter,
The error is occuring in some new code that fixes the problem with
jaas logout() methods not being invoked in jboss (see emails on this
list with the subject: "JAAS logout() still broken").
We use the realm-name in the fix to force jboss to flush the
authenticated principal from it's internal cache, which has the
side-effect of calling the jaas module logout() method.
You're getting the null pointer because you haven't specified a
<realm-name> element in the <login-config> element of your web.xml file.
So, if you want to avoid the exception, you can just specify a
<realm-name> that is the same as your jboss-web.xml <security-domain>
element minus the java:jaas prefix.
It is probably better for us to use the <security-domain> element
instead of requiring a <realm-name>, so I'll look into modifying the
patch.
cheers
Jan
Peter Ondruska wrote:
I'll need to find out how to force JBoss to log stack trace.
Meanwhile This is <category name="org.jboss.jetty">
<priority value="TRACE"
class="org.jboss.jetty.security.JBossUserRealm" />
</category>
output:
2004-09-05 08:29:47,419 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] JBossUserPrincipal:
ondruska
2004-09-05 08:29:47,422 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] created
JBossUserRealm::JBossUserPrincipal: ondruska
2004-09-05 08:29:47,422 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] authenticating:
Name:ondruska Password:****
2004-09-05 08:29:47,698 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] authenticated: ondruska
2004-09-05 08:29:47,699 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] setting JAAS
subjectAttributeName(j_subject) : Subject:
Principal: ondruska
Principal: Roles(members:fajx)
2004-09-05 08:29:47,716 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] authenticating:
Name:ondruska Password:****
2004-09-05 08:29:47,716 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] authenticated: ondruska
2004-09-05 08:29:47,726 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] JBossUserPrincipal:
ondruska is NOT in Role: role1
2004-09-05 08:29:47,726 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] JBossUserPrincipal:
ondruska is NOT in Role: role2
2004-09-05 08:29:47,726 DEBUG
[org.jboss.jetty.security.JBossUserRealm#null] JBossUserPrincipal:
ondruska is in Role: fajx
2004-09-05 08:29:53,471 INFO
[org.jboss.jetty.security.JBossUserRealm#null] logout for ondruska
2004-09-05 08:29:53,474 ERROR
[org.jboss.jetty.security.JBossUserRealm#null] RuntimeMBeanException:
java.lang.NullPointerException
Cause: java.lang.NullPointerException
The logout servlet is just a Struts action:
// Invalidate the current session and create a new one
HttpSession session = request.getSession();
session.invalidate();
session = request.getSession(true);
// Forward control back home
return (mapping.findForward("home"));
Jan Bartel wrote:
Peter,
can you send a full stack trace of this?
thanks
Jan
Peter Ondruska wrote:
I just upgraded to latest jboss-jetty (3.2.5 - 4.2.22) and after
logout (either timout or forced) I get this error:
[13:51:43,844,JBossUserRealm#null] RuntimeMBeanException:
java.lang.NullPointerException
Cause: java.lang.NullPointerException
Nothing else happens. Can this be ignored?
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