[rules-users] session deserialization slidingTimeWindow NPE

[Alexander Wolf]

Sometimes (I am not sure what the actual reason is yet ) I get following NPE when I try to deserialize my ksessions:

java.lang.NullPointerException
	at org.drools.common.ConcurrentNodeMemories.getNodeMemory(ConcurrentNodeMemories.java:63)
	at org.drools.common.AbstractWorkingMemory.getNodeMemory(AbstractWorkingMemory.java:1034)
	at org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction.<init>(SlidingTimeWindow.java:460)

This is not a new problem, I found an old post on the mailing list, that describes the same here: (but unfortunately without any answers)
http://drools.46999.n3.nabble.com/rules-users-5-5-0-Final-persistence-to-MySQL-td4023628.html

Apparently it's got something to do with slidingTime in one rule, but as it does not always occur - am I quite puzzled.

Any Ideas or Workarounds?

- Alex


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20131017/8e05064a/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 841 bytes
Desc: Message signed with OpenPGP using GPGMail
Url : http://lists.jboss.org/pipermail/rules-users/attachments/20131017/8e05064a/attachment.bin