[jira] [Assigned] (SLING-6978) [HApi] NPE if type is fetched from cache before the end of initialization

["Andrei Dulvac (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-6978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Dulvac reassigned SLING-6978:
------------------------------------

    Assignee: Andrei Dulvac

> [HApi] NPE if type is fetched from cache before the end of initialization
> -------------------------------------------------------------------------
>
>                 Key: SLING-6978
>                 URL: https://issues.apache.org/jira/browse/SLING-6978
>             Project: Sling
>          Issue Type: Bug
>          Components: HApi
>    Affects Versions: HApi 1.0.0
>            Reporter: Andrei Dulvac
>            Assignee: Andrei Dulvac
>             Fix For: HApi 1.0.2
>
>
> An NPE can occur when accessing the type properties from a type before it was fully initialized.
> {code}
> org.apache.sling.hapi.sightly.HApiUse Failed to activate Use class
> java.lang.NullPointerException: null
>         at java.util.HashMap.putMapEntries(HashMap.java:500)
>         at java.util.HashMap.putAll(HashMap.java:784)
>         at org.apache.sling.hapi.impl.HApiTypeImpl.getAllProperties(HApiTypeImpl.java:141)
>         at org.apache.sling.hapi.impl.MicrodataAttributeHelperImpl.itemtypeMap(MicrodataAttributeHelperImpl.java:63)
>         at org.apache.sling.hapi.sightly.HApiUse.activate(HApiUse.java:81)
>         at org.apache.sling.hapi.sightly.HApiUse.init(HApiUse.java:68)
>         at org.apache.sling.scripting.sightly.impl.engine.extension.use.JavaUseProvider.provide(JavaUseProvider.java:122)
>         at org.apache.sling.scripting.sightly.impl.engine.extension.use.UseRuntimeExtension.call(UseRuntimeExtension.java:72)
>         at org.apache.sling.scripting.sightly.impl.engine.runtime.RenderContextImpl.call(RenderContextImpl.java:75)
> {code}
> The type is inserted in the cache too soon: https://github.com/apache/sling/blob/trunk/contrib/extensions/hapi/core/src/main/java/org/apache/sling/hapi/impl/HApiUtilImpl.java#L224



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