Unsynchronized access to MultiIndex#indexes
-------------------------------------------
Key: JCR-2242
URL: https://issues.apache.org/jira/browse/JCR-2242
Project: Jackrabbit Content Repository
Issue Type: Bug
Components: jackrabbit-core
Reporter: Marcel Reutegger
Priority: Minor
This may result in a concurrent modification exception:
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at
org.apache.jackrabbit.core.query.lucene.MultiIndex.getIndexReader(MultiIndex.java:744)
at
org.apache.jackrabbit.core.query.lucene.MultiIndex.getIndexReader(MultiIndex.java:712)
at
org.apache.jackrabbit.core.query.lucene.SearchIndex.getIndexReader(SearchIndex.java:1024)
at
org.apache.jackrabbit.core.query.lucene.SearchIndex.executeQuery(SearchIndex.java:820)
at
org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.executeQuery(SingleColumnQueryResult.java:78)
at
org.apache.jackrabbit.core.query.lucene.QueryResultImpl.getResults(QueryResultImpl.java:293)
at
org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.<init>(SingleColumnQueryResult.java:70)
at
org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:132)
at
org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:127)
This is usually very unlikely but with the recent changes to our tests, index
flushes are very frequent and may cause the above exception.
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