We have found this exception a lot of times in our log. We are using Zephyr 1.7.3.1043 and JIRA v6.0.4 both with valid commercial licenses.
2013-08-01 15:50:37,163 ajp-bio-8081-exec-26 ERROR johndoe 950x1378x4 13g69w2 192.168.0.2 /rest/zephyr/latest/schedule [common.error.jersey.ThrowableExceptionMapper] Uncaught exception thrown by REST service
java.lang.NullPointerException
at com.thed.zephyr.je.rest.ScheduleResource.getSchedulesByIssueId(ScheduleResource.java:212)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
What does this exception mean and how can stop it?
Thanks for your time and help.
-- Edit
Removed "It may also be related to serious slow downs of jira - which render jira almost unusable." because these issues are not related.