Fatal Error thrown if an ldap entity satisfies the search filter but does not have a necessary attribute

2011-03-25 12:14:24,644 FATAL [pool-6-thread-1] [ldap.mapper.entity.LDAPUserAttributesMapper] getUsernameFromAttributes The following record does not have a username: {displayname=displayName: display, givenname=givenName: testcontactfirstname, company=company: cumpuny, objectclass=objectClass: top, person, organizationalPerson, contact, objectcategory=objectCategory: CN=Person,CN=Schema,CN=Configuration,DC=corp,DC=somewhere,DC=com, mail=mail: e-mayle@ab.com, cn=cn: testcontactfirstname testcontactlastname, dscorepropagationdata=dSCorePropagationData: 20110204042217.0Z, 20110204041213.0Z, 20110203032720.0Z, 20110203004419.0Z, 16010714223649.0Z, distinguishedname=distinguishedName: CN=testcontactfirstname testcontactlastname,OU=non-staff,OU=UserBase,DC=corp,DC=somewhere,DC=com, whenchanged=whenChanged: 20101030005732.0Z, whencreated=whenCreated: 20101030004920.0Z, objectguid=objectGUID: [B@b056fd, department=department: departmint, sn=sn: testcontactlastname, usnchanged=uSNChanged: 19974497, usncreated=uSNCreated: 19974281, instancetype=instanceType: 4, title=title: tytle, name=name: testcontactfirstname testcontactlastname}
2011-03-25 12:14:24,663 INFO [pool-6-thread-2] [directory.ldap.cache.UsnChangedCacheRefresher] call found [ 55 ] remote groups in [ 981ms ]
2011-03-25 12:14:24,683 FATAL [pool-6-thread-1] [springframework.ldap.control.AbstractRequestControlDirContextProcessor] postProcess No matching response control found for paged results - looking for 'class javax.naming.ldap.PagedResultsResponseControl
2011-03-25 12:14:24,684 INFO [main] [atlassian.crowd.directory.DbCachingRemoteDirectory] synchroniseCache synchronisation complete in [ 1014ms ]
2011-03-25 12:14:24,724 ERROR [main] [atlassian.confluence.upgrade.UpgradeLauncherServletContextListener] contextInitialized Upgrade failed, application will not start: com.atlassian.crowd.exception.runtime.OperationFailedException: java.util.concurrent.ExecutionException: com.atlassian.crowd.exception.OperationFailedException: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
com.atlassian.confluence.upgrade.UpgradeException: com.atlassian.crowd.exception.runtime.OperationFailedException: java.util.concurrent.ExecutionException: com.atlassian.crowd.exception.OperationFailedException: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
	at com.atlassian.confluence.upgrade.AbstractUpgradeManager.upgrade(AbstractUpgradeManager.java:84)
	at com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager.upgrade(DefaultUpgradeManager.java:139)
	at com.atlassian.confluence.upgrade.UpgradeLauncherServletContextListener.contextInitialized(UpgradeLauncherServletContextListener.java:28)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4205)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4704)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
	at org.apache.catalina.core.StandardService.start(StandardService.java:525)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: com.atlassian.crowd.exception.runtime.OperationFailedException: java.util.concurrent.ExecutionException: com.atlassian.crowd.exception.OperationFailedException: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
	at com.atlassian.crowd.embedded.core.CrowdDirectoryServiceImpl.synchroniseDirectory(CrowdDirectoryServiceImpl.java:199)
	at com.atlassian.confluence.upgrade.upgradetask.EmbeddedCrowdSynchronisationUpgradeTask.doUpgrade(EmbeddedCrowdSynchronisationUpgradeTask.java:37)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy33.doUpgrade(Unknown Source)
	at com.atlassian.confluence.upgrade.AbstractUpgradeManager.doUpgrade(AbstractUpgradeManager.java:131)
	at com.atlassian.confluence.upgrade.AbstractUpgradeManager.upgrade(AbstractUpgradeManager.java:67)
	... 17 more
Caused by: java.util.concurrent.ExecutionException: com.atlassian.crowd.exception.OperationFailedException: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
	at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher.synchroniseAllUsers(UsnChangedCacheRefresher.java:237)
	at com.atlassian.crowd.directory.ldap.cache.AbstractCacheRefresher.synchroniseAll(AbstractCacheRefresher.java:36)
	at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher.synchroniseAll(UsnChangedCacheRefresher.java:212)
	at com.atlassian.crowd.directory.DbCachingRemoteDirectory.synchroniseCache(DbCachingRemoteDirectory.java:642)
	at com.atlassian.crowd.manager.directory.DirectorySynchroniserHelperImpl.synchronise(DirectorySynchroniserHelperImpl.java:80)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy13.synchronise(Unknown Source)
	at com.atlassian.crowd.manager.directory.DirectorySynchroniserImpl.synchronise(DirectorySynchroniserImpl.java:59)
	at com.atlassian.crowd.manager.directory.DirectoryManagerGeneric.synchroniseCache(DirectoryManagerGeneric.java:243)
	at com.atlassian.crowd.embedded.core.CrowdDirectoryServiceImpl.synchroniseDirectory(CrowdDirectoryServiceImpl.java:190)
	... 31 more
Caused by: com.atlassian.crowd.exception.OperationFailedException: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
	at com.atlassian.crowd.directory.SpringLDAPConnector.pageSearchResults(SpringLDAPConnector.java:352)
	at com.atlassian.crowd.directory.SpringLDAPConnector.searchEntitiesWithRequestControls(SpringLDAPConnector.java:386)
	at com.atlassian.crowd.directory.SpringLDAPConnector.searchEntities(SpringLDAPConnector.java:371)
	at com.atlassian.crowd.directory.SpringLDAPConnector.searchUserObjects(SpringLDAPConnector.java:567)
	at com.atlassian.crowd.directory.SpringLDAPConnector.searchUsers(SpringLDAPConnector.java:955)
	at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher$1.call(UsnChangedCacheRefresher.java:170)
	at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher$1.call(UsnChangedCacheRefresher.java:165)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Caused by: org.springframework.ldap.UncategorizedLdapException: Unable to find the username of the principal.
	at com.atlassian.crowd.directory.ldap.mapper.entity.LDAPUserAttributesMapper.getUsernameFromAttributes(LDAPUserAttributesMapper.java:169)
	at com.atlassian.crowd.directory.ldap.mapper.entity.LDAPUserAttributesMapper.mapUserFromAttributes(LDAPUserAttributesMapper.java:103)
	at com.atlassian.crowd.directory.ldap.mapper.UserContextMapper.mapFromContext(UserContextMapper.java:50)
	at org.springframework.ldap.core.ContextMapperCallbackHandler.getObjectFromNameClassPair(ContextMapperCallbackHandler.java:67)
	at org.springframework.ldap.core.CollectingNameClassPairCallbackHandler.handleNameClassPair(CollectingNameClassPairCallbackHandler.java:50)
	at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:297)
	at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:237)
	at com.atlassian.crowd.directory.SpringLDAPConnector.pageSearchResults(SpringLDAPConnector.java:316)
	... 11 more