Error in log NPE when viewing Admin->Group Editor

[peterdietz]

http://localhost:8080/dspace-freemarkerui-webapp-1.7.0-SNAPSHOT/admin/group/main

2011-08-31 15:08:31,421 ERROR org.dspace.core.Context @ Exception aborting context
java.lang.NullPointerException
at org.dspace.core.Context.abort(Context.java:423)
at org.dspace.webmvc.filter.DSpaceRequestContextFilter.doFilter(DSpaceRequestContextFilter.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
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.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:636)

[peterdietz]

I also get errors in Group Manager when editing a group. The changes save, but it adds this error to log. The error never appears on screen though.

[peterdietz]

I get similar error when submitting a Supervision Order in Admin section.