Exception running 'Deferred storing of feeds'

I have an aspect editor that gathers configuration data to display on the editor.  The gathers data such as:

• Project areas connected
• Work item types defined within the connected project areas
• The names of the attributes for each work item type
• The attribute value sets for enumerated attributes

While processing this data, the exception below is received and the aspect editor never gets displayed.  This code has been supplied to many customers and is failing for only one of them.  This customer has gotten OOM errors opening the aspect editor - which is used to configure a follow-up action with a custom schema - but I don't know if the OOM errors are associated with the exception displayed below.  What can cause the exception below to be thrown?  Is it related to the OOM error?  I also have a heap dump from the OOM error.  I used MAT to analyze the heap dump and it looks like memory is being consumed by proxy objects for work items.  This code does create work items which are not saved but used to gather information about attributes. 

!ENTRY com.ibm.team.feed.core 4 0 2012-10-22 10:22:05.437
!MESSAGE Exception running 'Deferred storing of feeds'
!STACK 0
java.lang.IllegalStateException: Shutdown in progress
    at java.io.DeleteOnExitHook.add(DeleteOnExitHook.java:61)
    at java.io.File.deleteOnExit(File.java:933)
    at com.ibm.team.feed.core.FeedManager.store(FeedManager.java:1304)
    at com.ibm.team.feed.core.FeedManager.access$2(FeedManager.java:1292)
    at com.ibm.team.feed.core.FeedManager$1.runProtected(FeedManager.java:141)
    at com.ibm.team.foundation.client.util.FoundationJob.run(FoundationJob.java:68)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)