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https://issues.apache.org/jira/browse/OPENJPA-2118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Heath Thomann closed OPENJPA-2118.
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> Prepared SQL query does not handle collection-valued parameter where
> collection is empty
> ----------------------------------------------------------------------------------------
>
> Key: OPENJPA-2118
> URL: https://issues.apache.org/jira/browse/OPENJPA-2118
> Project: OpenJPA
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.0.0, 2.1.0, 2.2.0
> Reporter: Heath Thomann
> Assignee: Heath Thomann
> Fix For: 2.0.2, 2.1.2, 2.3.0, 2.2.1
>
>
> In PreparedQueryImpl.setCollectionValuedParameter, we do a '%n' but don't
> check for n==0, as can be seen here:
> private void setCollectionValuedParameter(Map<Integer,Object> result,
> Collection values, int[] indices, Object param) {
> int n = values.size();
> Object[] array = values.toArray();
> if (n > indices.length || indices.length%n != 0) {
> <---------------------line 389 in 2.0.x
> When n==0, the following exception will occur:
> Exception data: java.lang.ArithmeticException: divide by zero
> at
> org.apache.openjpa.jdbc.kernel.PreparedQueryImpl.setCollectionValuedParameter(PreparedQueryImpl.java:389)
> I will upload a test to reproduce this issue and a proposed fix in the next
> day or two.
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