ConcurrentModificationException in QueryStatImpl
------------------------------------------------
Key: JCR-3225
URL: https://issues.apache.org/jira/browse/JCR-3225
Project: Jackrabbit Content Repository
Issue Type: Bug
Components: jackrabbit-core
Affects Versions: 2.3.7, 2.3.6
Reporter: Christan Keller
Running with qurystats enabled the Query#execute can throw
ConcurrentModificationException
caused by the iterator which backing collection is changed from another thread
see logQuery method
Iterator<QueryStatDtoImpl> iterator = popularQueries.iterator();
while (iterator.hasNext()) {
--> QueryStatDtoImpl qsdi = iterator.next();
if (qsdi.equals(qs)) {
qs.setOccurrenceCount(qsdi.getOccurrenceCount() + 1);
iterator.remove();
break;
}
}
popularQueries.offer(qs);
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