Justin Edelson created OAK-1895:
-----------------------------------
Summary: ClassCastException can occur if the TraversalIndex is
cheaper than an OrderedIndex (or a different AdvancedQueryIndex impl)
Key: OAK-1895
URL: https://issues.apache.org/jira/browse/OAK-1895
Project: Jackrabbit Oak
Issue Type: Bug
Components: query
Reporter: Justin Edelson
Fix For: 1.0.2
Because the TraversalIndex is added last, the `bestPlan` variable will be
non-null if an OrderedIndex was usable for the query. If the TraversalIndex
ends up being cheaper, then the `bestIndex` variable is set to the
TraveralIndex, but the `bestPlan` remains set to a non-null value.
Later, in SelectorImpl, the fact that the plan is non-null causes the index to
be cast to AdvancedQueryIndex which fails with a ClassCastException.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
