[jira] [Created] (SLING-5525) Potential NPE / race condition with unregistered resource providers

["Carsten Ziegeler (JIRA)" <ji...@apache.org>]

Carsten Ziegeler created SLING-5525:
---------------------------------------

             Summary: Potential NPE / race condition with unregistered resource providers
                 Key: SLING-5525
                 URL: https://issues.apache.org/jira/browse/SLING-5525
             Project: Sling
          Issue Type: Bug
          Components: ResourceResolver
    Affects Versions: Resource Resolver 1.4.0, Resource Resolver 1.4.2
            Reporter: Carsten Ziegeler
            Assignee: Carsten Ziegeler
             Fix For: Resource Resolver 1.4.4


There is a race condition with unregistering provider handlers and iterating over them. For example this NPE might happen in such a case:

15.02.2016 09:17:02.485 WARN [sling-oak-observation-68] org.apache.jackrabbit.oak.jcr.observation.ChangeProcessor Error while dispatching observation events for /*[1b, oak:Unstructured, sling:Folder, no local]
java.lang.NullPointerException: null
at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.authenticate(ProviderManager.java:156)
at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager.getOrCreateProvider(ProviderManager.java:85)
at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager$1$1.seek(ProviderManager.java:213)
at org.apache.sling.resourceresolver.impl.providers.stateful.ProviderManager$1$1.seek(ProviderManager.java:205)
at org.apache.sling.resourceresolver.impl.helper.AbstractIterator.hasNext(AbstractIterator.java:33)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverControl.adaptTo(ResourceResolverControl.java:474)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.adaptTo(ResourceResolverImpl.java:830)




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)