TreeSet.addAll() has thrown a NullPointerException

We found this prefix in 6 webpages.
MapChildren (3)Typical messages (1)TraceDetailed Map
  1. java.lang.NullPointerException
    1.   at com.atlassian.confluence.security.ContentPermission.compareTo()
    2.   at java.util.TreeMap.put()
    3.   at java.util.TreeSet.add()
    4.   at java.util.AbstractCollection.addAll()
    5.   at java.util.TreeSet.addAll()
  1. NullPointerException

    Loader.doQuery()
    Crashes:4
    Projects:0
    Web Pages:4
    Error Reports:0
    First:10 months ago
    Last:7 months ago
    preview
  2. Remove group fails if any group permissions set

    First:9 years ago
    Last:6 months ago
    Author:Diane Sexton
  3. Remove group fails if any group permissions set

    First:9 years ago
    Last:2 years ago
    Author:Diane Sexton
MessageNumber of crashes
<No message>6
  1. java.lang.NullPointerException
    1.   at com.atlassian.confluence.security.ContentPermission.compareTo()
    2.   at java.util.TreeMap.put()
    3.   at java.util.TreeSet.add()
    4.   at java.util.AbstractCollection.addAll()
    5.   at java.util.TreeSet.addAll()