Arrays.sort() has thrown a NullPointerException

We found this prefix in 3 webpages.
MapChildren (3)Typical messages (1)TraceDetailed Map
  1. java.lang.NullPointerException
    1.   at java.lang.String.compareTo()
    2.   at java.lang.String.compareTo()
    3.   at java.util.Arrays.mergeSort()
    4.   at java.util.Arrays.sort()
  1. JBoss Community / Mailing Lists

    First:3 years ago
    Last:3 years ago
  2. Multidimentional array - this is so weird!

    First:14 years ago
    Last:2 years ago
    Author:807596
  3. NullPointerException: Change a mapping to many-to-one or one-to-one mapping

    First:7 years ago
    Last:2 years ago
    Author:nan.n.li
MessageNumber of crashes
<No message>3
  1. java.lang.NullPointerException
    1.   at java.lang.String.compareTo()
    2.   at java.lang.String.compareTo()
    3.   at java.util.Arrays.mergeSort()
    4.   at java.util.Arrays.sort()