Work mode REST call not threadsafe

2012-06-07 09:49:26,810 http-8080-45 ERROR admin 589x2537x10 s71z0v 127.0.0.1,127.0.0.1 /rest/greenhopper/1.0/xboard/work/allData.json [server.impl.application.WebApplicationImpl] Internal server error
java.util.ConcurrentModificationException
        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
        at java.util.AbstractList$Itr.next(AbstractList.java:343)
        at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
        at com.atlassian.plugin.util.collect.TransformingIterator.next(TransformingIterator.java:35)
        at com.atlassian.plugin.util.collect.CollectionUtil.foreach(CollectionUtil.java:17)
        at com.atlassian.plugin.util.collect.CollectionUtil.toList(CollectionUtil.java:37)
        at com.atlassian.plugin.util.collect.CollectionUtil.transform(CollectionUtil.java:52)
        at com.atlassian.plugin.util.collect.CollectionUtil.transform(CollectionUtil.java:61)
        at com.atlassian.greenhopper.service.project.ProjectHistoryServiceImpl.registerRecentProjectsWithProjects(ProjectHistoryServiceImpl.java:84)
        at com.atlassian.greenhopper.service.project.ProjectHistoryServiceImpl.registerRecentProjects(ProjectHistoryServiceImpl.java:53)
        at com.atlassian.greenhopper.web.rapid.work.WorkResource.registerRecentProjects(WorkResource.java:114)
        at com.atlassian.greenhopper.web.rapid.work.WorkResource.access$4(WorkResource.java:111)
        at com.atlassian.greenhopper.web.rapid.work.WorkResource$1.call(WorkResource.java:86)
        at com.atlassian.greenhopper.web.rapid.work.WorkResource$1.call(WorkResource.java:1)
        at com.atlassian.greenhopper.web.util.RestCall.response(RestCall.java:48)
        at com.atlassian.greenhopper.web.AbstractResource.response(AbstractResource.java:48)
        at com.atlassian.greenhopper.web.rapid.work.WorkResource.getPoolData(WorkResource.java:58)