[rules-users] Problem with Collection

Hi, I am using Drools 5.5.0 Final Expert to do Alarm Co-relation. I was trying to collect the facts in to the ArrayList collection. My drl file will look like below. From the Rule I calling an Java method to access the collected facts. /rule "Rule [Alarm Collection]" no-loop when $alarmColl : ArrayList() from collect(Alarm ( JustInserted == true; )) then // act on $alarmColl end/ while in my Java code I am loop through the collection to set an attribute of the Alarm Object. But while I am trying to set this attribute in the collection, the collection is getting updated and indexes are changed. Due to which all the objects are not updated. Even I tried using the iterator to access the ArrayList collection. Still the same issue. / while(index < alarmColl.size()){ Alarm alarmObj=alarmColl.get(index) if(alarmObj.isJustInserted()) { alarmObj.setJustInserted(false); theScenario.getSession().update(alarmObj); } index++; }/ How can I update the objects in collection without changing the index or any other way to achieve this. -- View this message in context: http://drools.46999.n3.nabble.com/Problem-with-Collection-tp4029219.html Sent from the Drools: User forum mailing list archive at Nabble.com.