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https://issues.apache.org/jira/browse/JCRVLT-94?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tobias Bocanegra resolved JCRVLT-94.
------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 3.1.22)
                   3.1.24

fixed in r1683155

> [AccessControlHandling] Unexpected behavior of acHandling 'merge'
> -----------------------------------------------------------------
>
>                 Key: JCRVLT-94
>                 URL: https://issues.apache.org/jira/browse/JCRVLT-94
>             Project: Jackrabbit FileVault
>          Issue Type: Bug
>          Components: vlt
>    Affects Versions: 3.1.22
>            Reporter: Anshika Agarwal
>            Assignee: Tobias Bocanegra
>             Fix For: 3.1.24
>
>         Attachments: CreateInitialTestScenario.zip, TestACHandling (2).zip
>
>
> As per the document [0], the AccessControlHandling for 'merge' should be 
> merging access control provided with the package with the one in the content 
> by replacing the access control entries of corresponding principals (i.e. 
> package first).
> This means if the package contains ACEs for a principal P, it should  remove 
> all the ACEs for that principal in the content and add the ones in the 
> package.
> However, I am not seeing this expected behavior. The behavior I am seeing is 
> as follows:
> ‘merge’ - Merges access control in the content with the one provided with the 
> package by adding the access control entries of principals not present in the 
> content but not removing the ones not present in the package.
> So for instance ACLs “jcr:read,jcr:versionManagement,rep:write” to 
> forms-users exists in CRX at ‘/content/apps/cm’ [PFA 
> 'CreateInitialTestScenario.zip' to create these ACLs in crx]. And now if we 
> change the ACLs for the same user/group and path to “rep:write,crx:replicate” 
> and install our package,  a union of ACLs is seen i.e. 
> “jcr:read,jcr:versionManagement,rep:write,crx:replicate” to forms-users at 
> ‘/content/apps/cm’.
> Please find attached package 'TestACHandling (2).zip' containing the ACLs - 
> “rep:write,crx:replicate” for forms-users group and path ‘/content/apps/cm’ 
> [0] : 
> https://docs.adobe.com/docs/en/aem/6-0/develop/ref/javadoc/org/apache/jackrabbit/vault/fs/io/AccessControlHandling.html



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