[jira] [Commented] (TILES-551) ModularTilesInitializer attempts to create and register multiple ApplicationContexts in the webapp

["Nicolas Le Bas (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TILES-551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13449800#comment-13449800 ] 

Nicolas Le Bas commented on TILES-551:
--------------------------------------

I feel this feature could just be dropped in favor of OSGi support. 

TilesInitializer is very similar to BundleActivator, and we should be able to build an ApplicationContext from BundleContext easily enough:

getInitParams() -> getBundle().getHeaders()
getResource() -> getBundle().getEntry()
getResources() -> getBundle().findEntries()
getApplicationScope() -> a read-only map of OSGi services defined in the bundle's MANIFEST.MF
                
> ModularTilesInitializer attempts to create and register multiple ApplicationContexts in the webapp
> --------------------------------------------------------------------------------------------------
>
>                 Key: TILES-551
>                 URL: https://issues.apache.org/jira/browse/TILES-551
>             Project: Tiles
>          Issue Type: Bug
>            Reporter: Nicolas Le Bas
>            Priority: Minor
>
> When using ModularTilesInitializer, an ApplicationContext can be created by each TilesInitializer, which will then be registered into the ServletContext by the TilesContainer.
> As a result, the registered ApplicationContext may vary depending on the classpath order, leading to unreliable results.
> Indeed we should use a single ApplicationContext in an application; in any case, registering the ApplicationContext with the ServletContext should not be the responsibility of the TilesContainer.
> As a workaround, use a singleton pattern to create the ApplicationContext in each TilesInitializer.

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