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https://issues.apache.org/jira/browse/JENA-945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14553222#comment-14553222
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Andy Seaborne commented on JENA-945:
------------------------------------
Replacing the call of {{Query.setGroupBy}} by:
{noformat}
query.getGroupBy().clear()
query.getGroupBy().addAll(...)
{noformat}
works -- I don't undertand why {{setGroupBy}} is needed.
> Add Seven methods to Query class
> --------------------------------
>
> Key: JENA-945
> URL: https://issues.apache.org/jira/browse/JENA-945
> Project: Apache Jena
> Issue Type: Improvement
> Components: Core
> Affects Versions: Jena 3.0.0
> Reporter: Claude Warren
> Assignee: Claude Warren
> Priority: Minor
> Fix For: Jena 3.0.0
>
>
> The QueryBuilder uses reflection to perform some of its data manipulation.
> This reflection will fail in an environment with Java Security Manager
> enabled.
> This change is to add methods so that QueryBuilder no longer needs to use
> reflection to get and set Query internal variables.
> The variables are:
> namedGraphURIs -- get and set required. parameter/return: List<String>
> graphURIs -- get and set required. parameter/return: List<String>
> projectVars -- get and set required. parameter/return: VarExprList
> groupVars -- set required. parameter: VarExprList
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