I have Hudson 1.255 running in tomcat 6.0. Security is enabled in Hudson using
Hudson's integrated LDAP authentication feature.

Everything works fine for awhile and as long as I am active on the site.
However, if I close the browser (firefox 3.0.3) and subsequently attempt to
access the site after several hours of inactivity I consistently run into the
following problem:

Oct 17, 2008 10:46:03 PM hudson.security.LDAPSecurityRealm$1 loadUserByUsername
WARNING: Failed to search LDAP for username=someuser
org.acegisecurity.ldap.LdapDataAccessException:
LdapCallback;directory.mycompany.com:389; socket closed; nested exception is
javax.naming.ServiceUnavailableException: directory.mycompany.com:389; socket
closed; remaining name ''
at
org.acegisecurity.ldap.LdapTemplate$LdapExceptionTranslator.translate(LdapTemplate.java:295)
at org.acegisecurity.ldap.LdapTemplate.execute(LdapTemplate.java:128)
at org.acegisecurity.ldap.LdapTemplate.searchForSingleEntry(LdapTemplate.java:246)
at
org.acegisecurity.ldap.search.FilterBasedLdapUserSearch.searchForUser(FilterBasedLdapUserSearch.java:119)
at
hudson.security.LDAPSecurityRealm$1.loadUserByUsername(LDAPSecurityRealm.java:187)
at
hudson.security.UserDetailsServiceProxy.loadUserByUsername(UserDetailsServiceProxy.java:21)
at
org.acegisecurity.ui.rememberme.TokenBasedRememberMeServices.loadUserDetails(TokenBasedRememberMeServices.java:308)
at
org.acegisecurity.ui.rememberme.TokenBasedRememberMeServices.autoLogin(TokenBasedRememberMeServices.java:218)
at
hudson.security.RememberMeServicesProxy.autoLogin(RememberMeServicesProxy.java:30)
at
org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:104)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at
hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:42)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:44)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:85)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:394)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.naming.ServiceUnavailableException:
directory.mycompany.com:389; socket closed; remaining name ''
at com.sun.jndi.ldap.Connection.readReply(Connection.java:410)
at com.sun.jndi.ldap.LdapClient.getSearchReply(LdapClient.java:611)
at com.sun.jndi.ldap.LdapClient.search(LdapClient.java:534)
at com.sun.jndi.ldap.LdapCtx.doSearch(LdapCtx.java:1944)
at com.sun.jndi.ldap.LdapCtx.searchAux(LdapCtx.java:1806)
at com.sun.jndi.ldap.LdapCtx.c_search(LdapCtx.java:1731)
at com.sun.jndi.ldap.LdapCtx.c_search(LdapCtx.java:1748)
at
com.sun.jndi.toolkit.ctx.ComponentDirContext.p_search(ComponentDirContext.java:394)
at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCompositeDirContext.java:376)
at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCompositeDirContext.java:358)
at javax.naming.directory.InitialDirContext.search(InitialDirContext.java:267)
at org.acegisecurity.ldap.LdapTemplate$3.doInDirContext(LdapTemplate.java:249)
at org.acegisecurity.ldap.LdapTemplate.execute(LdapTemplate.java:126)
... 35 more

Any suggestions? Is there a place where I can configure this problem away?