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From "Michael Dick (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OPENJPA-1992) java.lang.ArrayIndexOutOfBoundsException if positional parameter are not started from 1
Date Mon, 09 May 2011 13:47:03 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-1992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Dick resolved OPENJPA-1992.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.2.0

While in theory we could support positional parameters that do not start with 1, or contain
gaps I don't think there's a compelling reason to add such support. 

We should not throw an ArrayIndexOutOfBoundsException during query execution though. I've
checked in changes that will detect the condition when the query is created and throw a UserException
that explains why the query string is bad.

> java.lang.ArrayIndexOutOfBoundsException if positional parameter are not started from
1
> ---------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1992
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1992
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 2.1.0
>            Reporter: Han Hong Fang
>            Assignee: Michael Dick
>             Fix For: 2.2.0
>
>         Attachments: Main.java, OPENJPA-1992.patch
>
>
> Query q = em.createQuery("SELECT x FROM Magazine x WHERE x.title = ?2 and x.price >
?3");
> q.setParameter(2, "JDJ").setParameter(3, 25.0);
> When the query is executed, java.lang.ArrayIndexOutOfBoundsException will be thrown.
Since "JDJ" and "25.0" will be stored in arr[0] and arr[1] (when arr.size =2) but the query
execution code tries to get them via arr[2] and arr[3].

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