[rules-users] Sliding Windows - Error

Hi, I'm using an accumulate on a sliding window to count the number of events, which occur in a 30 second window; the events are inserted every 5 seconds - so with a 30 second window, I would expect 6 events to occur. The rule below never fires, though from the log output, it looks as though the condition has matched successfully? declare Foo @role ( event ) @expires ( 60s ) @timestamp ( date ) end rule "Count Foo" when c : Number(intValue > 5) from accumulate $f : Foo() over window:time ( 30s ) from entry-point ChannelDataStream, count($f)) then System.out.println("Count [30s] = " + c); end OBJECT ASSERTED value:com.test.DroolsTest$Foo@c52200 factId: 1 OBJECT ASSERTED value:com.test.DroolsTest$Foo@128edf2 factId: 3 OBJECT ASSERTED value:com.test.DroolsTest$Foo@1dddba factId: 4 OBJECT ASSERTED value:com.test.DroolsTest$Foo@c7e8a7 factId: 5 OBJECT ASSERTED value:com.test.DroolsTest$Foo@7b4703 factId: 6 ACTIVATION CREATED rule:Count Foo activationId:Count Foo [2, 0] declarations: c=6(2) OBJECT ASSERTED value:com.test.DroolsTest$Foo@1732ed2 factId: 7 ACTIVATION CANCELLED rule:Count Foo activationId:Count Foo [2, 0] declarations: c=6(2) ACTIVATION CREATED rule:Count Foo activationId:Count Foo [2, 0] declarations: c=6(2) OBJECT ASSERTED value:com.test.DroolsTest$Foo@be76c7 factId: 8 ACTIVATION CANCELLED rule:Count Foo activationId:Count Foo [2, 0] declarations: c=6(2) ACTIVATION CREATED rule:Count Foo activationId:Count Foo [2, 0] declarations: c=6(2) Can anybody explain why this is happening? I've attached a test case, which demonstrates the problem. Thanks in advance. - Paul