NullPointerException for non-admin users when logging in

When users not in the confluence-admin LDAP group (or a group that has admin privilages) they get the following error on login.

CONFLUENCE
System Error
A system error has occurred - our apologies!
Please create a support issue on our support system at http://support.atlassian.com with the following information:

a description of your problem and what you were doing at the time it occurred
cut & paste the error and system information found below
attach the application server log file (if possible).

We will respond as promptly as possible.
Thank you!
Cause:
java.lang.NullPointerException
at com.sun.jndi.ldap.LdapNamingEnumeration.getNextBatch(LdapNamingEnumeration.java:110)

Stack Trace: [hide]

java.lang.NullPointerException
at com.sun.jndi.ldap.LdapNamingEnumeration.getNextBatch(LdapNamingEnumeration.java:110)
at com.sun.jndi.ldap.LdapNamingEnumeration.nextAux(LdapNamingEnumeration.java:244)
at com.sun.jndi.ldap.LdapNamingEnumeration.nextImpl(LdapNamingEnumeration.java:235)
at com.sun.jndi.ldap.LdapNamingEnumeration.next(LdapNamingEnumeration.java:183)
at com.sun.jndi.ldap.LdapNamingEnumeration.nextElement(LdapNamingEnumeration.java:87)
at com.atlassian.user.impl.ldap.adaptor.LDAPStaticGroupAdaptor.hasMembership(LDAPStaticGroupAdaptor.java:79)
at com.atlassian.user.impl.ldap.LDAPGroupManagerReadOnly.hasMembership(LDAPGroupManagerReadOnly.java:83)
at com.atlassian.user.impl.delegation.DelegatingGroupManager.hasMembership(DelegatingGroupManager.java:305)
at com.atlassian.user.impl.ehcache.EhcacheGroupManager.hasMembership(EhcacheGroupManager.java:241)
at bucket.user.DefaultUserAccessor.hasMembership(DefaultUserAccessor.java:496)
at bucket.user.DefaultUserAccessor.hasMembership(DefaultUserAccessor.java:521)
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingReflection(AopProxyUtils.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:149)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:116)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:56)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:138)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:152)
at $Proxy16.hasMembership(Unknown Source)
at com.atlassian.confluence.util.GeneralUtil.isSuperUser(GeneralUtil.java:859)
at com.atlassian.confluence.core.ConfluenceActionSupport.isPermitted(ConfluenceActionSupport.java:164)
at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:94)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.spaces.actions.SpaceAwareInterceptor.intercept(SpaceAwareInterceptor.java:82)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:25)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.util.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:133)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:229)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:908)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:150)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.confluence.util.ServletContextThreadLocalFilter.doFilter(ServletContextThreadLocalFilter.java:30)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.confluence.util.UserThreadLocalFilter.doFilter(UserThreadLocalFilter.java:45)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:182)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)
at bucket.custom.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:31)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:122)
at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:27)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.core.filters.gzip.GzipFilter.doFilter(GzipFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:37)
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:280)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:209)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:161)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:580)

Referer URL: http://wikitest./confluence/login.action?os_destination=%2Fhomepage.action

Build Information:
Confluence Home: /var/confluence/home
Uptime: 10 minutes, 54 seconds
Version: 2.1.5a
Build Number: 411

Server Information:
Application Server: Sun ONE Web Server
Servlet Version: 2.3
Database Dialect: bucket.dialect.MySQLDialect
Database Driver Name: com.mysql.jdbc.Driver
Database Driver Version: 3.0

Memory Information:
Total Memory: 115 MB
Free Memory: 40 MB
Used Memory: 75 MB

System Information:
System Date: Friday, 24 Mar 2006
System Time: 09:07:53
System Favourite Colour: Chartreuse
Java Version: 1.4.2_04
Java Vendor: Sun Microsystems Inc.
JVM Version: 1.0
JVM Vendor: Sun Microsystems Inc.
JVM Implementation Version: 1.4.2_04-b05
Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition
Java VM: Java HotSpot(TM) Server VM
User Name: nobody
User Timezone: EST5EDT
Operating System: Linux 2.4.21-9.0.1.ELsmp
OS Architecture: i386
Filesystem Encoding: UTF-8

Enabled Plugins:
Plain Theme (com.atlassian.confluence.themes.tabless, Version: 1.0)
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Basic Macros (confluence.macros.basic, Version: 1.3)
Core Listeners (confluence.listeners.core, Version: 1.3)
Advanced Macros (confluence.macros.advanced, Version: 1.3)
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Attachments Macros (confluence.extra.attachments, Version: 1.3)
IM Presence Macros (confluence.extra.impresence, Version: 0.1)
User Listener (confluence.extra.userlister, Version: 1.1)
HTML Macros (confluence.macros.html, Version: 1.3)
Chart Plugin (confluence.extra.chart, Version: 1.5)
Live Search Macros (confluence.extra.livesearch, Version: 1.3)
Information Macros (confluence.extra.information, Version: 0.1)
Plain Website Theme (com.atlassian.confluence.themes.plain-website, Version: 1.0)
Task List Macros (confluence.extra.tasklist, Version: 1.3)
JIRA Macros (confluence.extra.jira, Version: 1.4)
Layout Macros (confluence.extra.layout, Version: 0.1)
Attachment Extractors (confluence.extractors.attachments, Version: 1.4)
Left Navigation Theme (com.atlassian.confluence.themes.leftnavigation, Version: 1.0)
Dynamic Task List Macros (confluence.extra.dynamictasklist, Version: 1.3)
Confluence Remote API (confluence.extra.confluencerpc, Version: 1.4)
Core Extractors (confluence.extractors.core, Version: 1.4)
Compatibility Macros (confluence.macros.compatibility, Version: 1.3)

Request
Information:
URL: http://wikitest./confluence/homepage.action

• Scheme: http
• Server: wikitest.
• Port: 80
• URI: /confluence/500page.jsp
• - Context Path: /confluence
• - Servlet Path: /500page.jsp
• - Path Info: null
• - Query String: null

Attributes:

• javax.servlet.error.exception : java.lang.NullPointerException
• javax.servlet.error.message :
• os_securityfilter_already_filtered : true
• com.atlassian.johnson.filters.JohnsonFilter_already_filtered : true
• _sitemesh_using_stream : false
• javax.servlet.error.request_uri : /confluence/homepage.action
• javax.servlet.error.status_code : 500
• _sitemesh_filterapplied : true
• javax.servlet.error.servlet_name : action
• webwork.valueStack : com.opensymphony.xwork.util.OgnlValueStack@1f4e01b
• loginfilter.already.filtered : true
• atlassian.core.seraph.original.url : /homepage.action
• javax.servlet.jsp.jspException : java.lang.NullPointerException
• sessioninview.FILTERED : true
• com.atlassian.core.filters.gzip.GzipFilter_already_filtered : true

Parameters:
Confluence User:

• anonymous

Logging:
0 log statements generated by this request.

--------------------------------------------------------
[access log]

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172.16.86.83 - - [24/Mar/2006:11:16:40 -0500] "GET /confluence/default.jsp HTTP/1.1" 302 0
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172.16.86.83 - - [24/Mar/2006:11:16:41 -0500] "GET /confluence/decorators/effects.js HTTP/1.1" 304 0
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172.16.86.83 - - [24/Mar/2006:11:16:47 -0500] "POST /confluence/login.action HTTP/1.1" 302 0
172.16.86.83 - - [24/Mar/2006:11:16:48 -0500] "GET /confluence/homepage.action HTTP/1.1" 500 16681
172.16.86.83 - - [24/Mar/2006:11:16:48 -0500] "GET /confluence/includes/js/cookieUtils.js HTTP/1.1" 304 0