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https://issues.apache.org/jira/browse/SLING-11567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joerg Hoh closed SLING-11567.
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> ValueMap.get() with null defaultValue not working
> -------------------------------------------------
>
> Key: SLING-11567
> URL: https://issues.apache.org/jira/browse/SLING-11567
> Project: Sling
> Issue Type: Bug
> Components: JCR
> Reporter: Joerg Hoh
> Assignee: Joerg Hoh
> Priority: Blocker
> Fix For: JCR Resource 3.2.2
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> While checking the current state of the JCR Bundle resource bundle against an
> existing codebase, I found that it throws errors like this:
> {noformat}
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.sling.jcr.resource.internal.JcrValueMap.get(JcrValueMap.java:110)
> [org.apache.sling.jcr.resource:3.2.1.SNAPSHOT]
> {noformat}
> This is caused by calling {{ValueMap.get(propertyName, null)}}. This was
> working with the version 3.2.0 of the jcr resource bundle.
> The {{defaultValue}} parameter is marked as NonNull, and the javadoc for the
> ValueMap.get() method states this:
> _Implementation hint: In the past it was allowed to call this with a 2nd
> parameter being null. Therefore all implementations should internally call
> Map.get(Object) when the 2nd parameter has value null._
> That means that some backward-incompatible change has been made by declaring
> this parameter non-null (in the API).
> For the implementation that despite this parameter being marked as non-null,
> all implementations still need to do explicit checks for null and handle them
> properly.
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