[infinispan-issues] [JBoss JIRA] (ISPN-6276) Non-threadsafe use of HashSet in AdvancedAsyncCacheLoader

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated ISPN-6276:
------------------------------------------
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1312186
        Bugzilla Update: Perform


>  Non-threadsafe use of HashSet in AdvancedAsyncCacheLoader
> ----------------------------------------------------------
>
>                 Key: ISPN-6276
>                 URL: https://issues.jboss.org/browse/ISPN-6276
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Loaders and Stores
>    Affects Versions: 6.0.2.Final
>            Reporter: Dennis Reed
>
> org.infinispan.persistence.async.AdvancedAsyncCacheLoader$process creates a HashSet, and passes it to loadAllKeys().
> loadAllKeys() creates a task to get each key and add it to the HashSet.
> This task is run by org.infinispan.persistence.file.SingleFileStore#process, which runs it in multiple threads at once (one thread per key).
> There is no synchronization on that HashSet that is shared by the multiple threads.
> HashSet is not thread safe.  One known side effect of non-synchronized access by multiple threads is infinite loops, which has been witnessed here.



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