[infinispan-issues] [JBoss JIRA] (ISPN-1583) AbstractDelegatingAdvancedCache with(ClassLoader), withFlags(Flag...) logic is broken

[Manik Surtani (Updated) (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manik Surtani updated ISPN-1583:
--------------------------------

             Fix Version/s: 5.2.0.FINAL
                                (was: 5.1.0.CR1)
    Workaround Description: See comments
                Workaround: Workaround Exists

    
> AbstractDelegatingAdvancedCache with(ClassLoader), withFlags(Flag...) logic is broken
> -------------------------------------------------------------------------------------
>
>                 Key: ISPN-1583
>                 URL: https://issues.jboss.org/browse/ISPN-1583
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core API
>    Affects Versions: 5.1.0.BETA5
>            Reporter: Paul Ferraro
>            Assignee: Manik Surtani
>            Priority: Critical
>             Fix For: 5.2.0.FINAL
>
>
> When the withFlags(...) logic was modified to use a DecoratedCache instead of thread-local storage, any caches already decorated with the AbstractDelegatingAdvancedCache(...) broke.
> Take the following code:
> AdvancedCache<K, V> baseCache;
> AdvancedCache<K, V> customCache = new AbstractDelegatingAdvancedCache<K, V>(baseCache) {
>   public void clear() {
>      // custom clear logic
>   }
> };
> customCache.withFlags(Flag.CACHE_MODE_LOCAL).clear();
> In the above statement, the flag is not applied.
> The call to withFlags(...) returns a reference to customCache, and the reference to DecoratedCache containing the flags is lost to garbage collection.
> In the case of with(ClassLoader) we have the opposite problem.
> customCache.with(customClassLoader).clear();
> In the above statement, the native clear() method is invoked instead of my custom clear() method. with(ClassLoader) returns a reference to DecoratedCache.  The clear() method then operates on baseCache, instead of customCache.

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