[Building Sakai] Assignments | Grade | Grade blows up

[Wheat, Jon]

Hey guys,
I have an instructor attempting to grade an assignment.  Assignments | Grade (under the assignment) | Grade (under a student) - and gets "the error" screen.
When I as admin go in – it works fine.
When I become that instructor I get the error.  There are two instructors in this course, and happens with both of them.

This is the full error from catalina.out -


2011-09-13 09:49:09,345  WARN http-443-Processor253 org.sakaiproject.authz.impl.DbAuthzGroupService - isAllowed(): called with no realms: lock: asn.read user: 4008ff50-dd0d-4d0c-aa3a-fb95dade1d04
2011-09-13 09:49:09,412 ERROR http-443-Processor253 org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/sakai-assignment-tool].[sakai.assignment.grades] - Servlet.service() for servlet sakai.assignment.grades threw exception
java.lang.NullPointerException
2011-09-13 09:49:09,417  WARN http-443-Processor253 org.sakaiproject.portal.util.ErrorReporter - Bug Report bug-id: 7218b6f4-0cb0-4c15-9b20-8e65c60558ff user: 4008ff50-dd0d-4d0c-aa3a-fb95dade1d04 usage-session: e6734b79-80a7-4928-b693-2b0047ef77db time: Sep 13, 2011 09:49:09 user comment: null stack trace
org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException
    at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:768)
caused by: org.sakaiproject.tool.api.ToolException
    at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:236)
caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
caused by: java.lang.NullPointerException

Tool Placement:
No Placement

Request:
:    AuthType:null
:    CharEncoding:UTF-8
:    ContentLength:-1
:    ContentType:null
:    ContextPath:/portal
:    LocalAddress:153.42.16.194
:    LocalName:153.42.16.194
:    LocalPort:443
:    Method:GET
:    PathInfo:/tool/6f7fa5eb-c9bc-4dc0-8f0b-355f18320e26
:    Protocol:HTTP/1.1
:    QueryString:panel=Main
:    RemoteAddress:153.42.49.217
:    RemoteHost:153.42.49.217
:    RemotePort:57684
:    Requested URL:https://sakai.messiah.edu/portal/tool/6f7fa5eb-c9bc-4dc0-8f0b-355f18320e26
:    Scheme:https
:    ServerName:sakai.messiah.edu
:    Headers:
:        Header:host:sakai.messiah.edu
:        Header:user-agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:6.0) Gecko/20100101 Firefox/6.0
:        Header:accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
:        Header:accept-language:en-us,en;q=0.5
:        Header:accept-encoding:gzip, deflate
:        Header:accept-charset:ISO-8859-1,utf-8;q=0.7,*;q=0.7
:        Header:connection:keep-alive
:        Header:referer:https://sakai.messiah.edu/portal/tool/6f7fa5eb-c9bc-4dc0-8f0b-355f18320e26?panel=Main
:        Header:cookie:---censored---
:    Parameters:
:        Parameter:panel:0:Main
:    Attributes:
:        Attribute:sakai.character.encoding.done:sakai.character.encoding.done
:        Attribute:tool.url.manager:org.sakaiproject.portal.util.ToolURLManagerImpl at 1d71332
:        Attribute:sakai.html.body.onload:setMainFrameHeight('Main6f7fa5ebxc9bcx4dc0x8f0bx355f18320e26');setFocus(focus_path);
:        Attribute:javax.servlet.request.key_size:128
:        Attribute:sakai.filtered:sakai.filtered
:        Attribute:sakai.html.head.css:<link href="/library/skin/tool_base.css" type="text/css" rel="stylesheet" media="all" />
<link href="/library/skin/vision/tool.css" type="text/css" rel="stylesheet" media="all" />

:        Attribute:sakai.session:org.sakaiproject.tool.impl.MySession at 71f2d769
:        Attribute:javax.servlet.request.ssl_session:4e6f59a5d6740bb5f9624ece8c66ad18b754193051955533b3a0e4d970353daa
:        Attribute:sakai.html.head.css.skin:<link href="/library/skin/vision/tool.css" type="text/css" rel="stylesheet" media="all" />

:        Attribute:sakai.html.head.js:<script type="text/javascript" language="JavaScript" src="/library/js/headscripts.js"></script>

:        Attribute:sakai.html.head:<link href="/library/skin/tool_base.css" type="text/css" rel="stylesheet" media="all" />
<link href="/library/skin/vision/tool.css" type="text/css" rel="stylesheet" media="all" />
<script type="text/javascript" language="JavaScript" src="/library/js/headscripts.js"></script>

:        Attribute:javax.servlet.request.cipher_suite:TLS_DHE_RSA_WITH_AES_128_CBC_SHA
:        Attribute:sakai.html.head.css.base:<link href="/library/skin/tool_base.css" type="text/css" rel="stylesheet" media="all" />

Session:
:    Created:1315921433854
:    LastAccess:1315921749415
:    MaxInactive:7200
:    Attributes:
:        Attribute:portalskin:defaultskin

2011-09-13 09:49:09,417  WARN http-443-Processor253 org.sakaiproject.email.impl.BasicEmailService - send: javax.mail.internet.AddressException: Illegal address in string ``''

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