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https://issues.apache.org/jira/browse/OLINGO-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16479001#comment-16479001
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Milko Todorov commented on OLINGO-1262:
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Any update or at least thoughts?

> Executing multiple queries in batch request leads to parameters mismatch / 
> not found
> ------------------------------------------------------------------------------------
>
>                 Key: OLINGO-1262
>                 URL: https://issues.apache.org/jira/browse/OLINGO-1262
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata2-jpa
>    Affects Versions: V2 2.0.10
>         Environment: SAP Cloud Platform
>            Reporter: Milko Todorov
>            Priority: Major
>
> Hello Olingo community,
> we have an issue when sending multiple queries packed in batch request. Often 
> upon restart of our application (when the caches are empty), the first 
> execution of a particular batch request which contains quite a number of 
> queries we are getting one of the following errors (most of the time the 
> first one): 
> {color:#d04437}!/jira/images/icons/emoticons/error.png!  You have attempted 
> to set a value of type class java.lang.String for parameter 5 with expected 
> type of int from query string {color}
> {color:#d04437}SELECT E1 FROM CreditProduct E1 WHERE 
> (((E1.creditProductPk.creditAgencyId = ?2) AND ((E1.creditProductTypeCode = 
> ?5) OR (E1.creditProductTypeCode = ?8))) AND (E1.isDeactivated = 
> false)).{color}
> {color:#d04437}!/jira/images/icons/emoticons/error.png!  Query argument 33 
> not found in the list of parameters provided during query execution.{color}
> {color:#d04437}!/jira/images/icons/emoticons/error.png!  While trying to 
> invoke the method java.lang.String.contains(java.lang.CharSequence) of a null 
> object returned from 
> org.apache.olingo.odata2.jpa.processor.core.ODataParameterizedWhereExpressionUtil.getJPQLStatement(){color}
> {color:#d04437}!/jira/images/icons/emoticons/error.png!  Query argument 3 not 
> found in the list of parameters provided during query execution.{color}
> {color:#333333}It looks like that the issue could be in class 
> {color}*ODataParameterizedWhereExpressionUtil* where the 
> *parameterizedQueryMap* is defined. It is defined as static and it looks like 
> a concurrency issue. Is there a reason behind defining this map as static? It 
> seems very similar to the already opened issue OLINGO-1254
> As soon as the queries runs one time and the caches are filled we don't have 
> it anymore unless the app is restarted.
> Could you please assist us with finding a solution here?
> Thank you,
>  Milko



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