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https://issues.apache.org/jira/browse/IGNITE-3429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861798#comment-15861798
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Andrew Mashenkov commented on IGNITE-3429:
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I see org.hibernate.cache.internal.OldCacheKeyImplementation class only in
5.0.x RC versions.
In >=5.0 stable versions has class named
org.hibernate.cache.internal.CacheKeyImplementation.
> org.hibernate.cache.spi.CacheKey not properly serialized by binary marshaller
> -----------------------------------------------------------------------------
>
> Key: IGNITE-3429
> URL: https://issues.apache.org/jira/browse/IGNITE-3429
> Project: Ignite
> Issue Type: Bug
> Components: cache, Hibernate L2 cache
> Affects Versions: 1.6
> Reporter: Valentin Kulichenko
> Assignee: Andrew Mashenkov
> Priority: Critical
> Fix For: 2.0
>
>
> {{org.hibernate.cache.spi.CacheKey}} is a class used as a key for all entries
> in the Hibernate L2 cache. This class contains {{type}} field and custom
> {{equals}} logic where the type is used as a helper and does not participate
> in comparison. Instances of the same type are producing different hash codes
> in different JVMs, which actually breaks comparison when binary format is
> used, where byte arrays are compared.
> The issue is described in more detail here:
> http://stackoverflow.com/questions/38132263/apache-ignite-as-hibernate-l2-cache-storing-duplicate-entities
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