Re: [rules-users] NPE in SlidingTimeWindow$SlidingTimeWindowComparator
Hi Rob,
Can you please provide the test case (open a JIRA with it) or at least a
description of what kind of events are you feeding in and with which
frequency so that we can try to reproduce the problem?
The NPE where you mentioned is the symptom... the problem is elsewhere...
Edson
2011/10/6 Rob Crawford <crawford(a)kloognome.com>
I'm getting a null pointer exception on either line 232 or 233
of
SlidingTimeWindow. The only window I'm using is:
rule "Mark up to date"
timer(int: 5m)
when
$store: Store()
exists (SensorReading (this.store == $store) over window:time(5m))
then
...
end
The rule never fires; this happens when the sliding time window is expiring
tuples.
It appears the comparator needs to handle nulls, but there's nothing in the
JavaDocs about that.
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Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
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