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ID Category Severity Reproducibility Date Submitted Last Update
0005514 [Resin] tweak always 08-01-13 16:25 11-06-14 12:36
Reporter beamerblvd View Status public  
Assigned To ferg
Priority normal Resolution fixed  
Status closed   Product Version 4.0.37
Summary 0005514: Improvement: Order ServletContainerInitializers according to web-fragment order
Description For context, see [^]

The Servlet 3.0 and 3.1 specs require no specific order for ServletContainerInitializers. This is a serious flaw in the spec, because it eliminates the ability to guarantee that certain code runs before any other code (for example, initialization of logging frameworks). In Servlet 2.5 and earlier, you could guarantee a exact ordering of startup code, but you can't do that anymore. To be clear, the spec does not prohibit the container from ordering them in a certain way, it just doesn't specify an order that should be followed.

Tomcat (confirmed), TomEE (confirmed), JBoss (confirmed), WebLogic (apparent), and WebSphere (apparent) order SCIs according to the order of the web-fragments they appear in. That way, either using <order> or <absolute-ordering>, an application can guarantee that a particular SCI will run first. Resin executes SCIs in the order they are returned by the ClassLoader.

I believe it would be an improvement for Resin and for the community as a whole if Resin would order SCIs according to the web-fragment order, just like the five aforementioned containers. I intend to lobby hard for this to be the required behavior in the Servlet 3.2 spec. If Resin 4 and 5 implemented this behavior, it would make the argument more compelling, and also require no changes in Resin-next once Servlet 3.2 is finalized.

(FYI: I am filing similar enhancement requests for GlassFish and Jetty.)
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11-06-14 12:36


- Issue History
Date Modified Username Field Change
08-01-13 16:25 beamerblvd New Issue
11-06-14 12:36 ferg Note Added: 0006555
11-06-14 12:36 ferg Assigned To  => ferg
11-06-14 12:36 ferg Status new => closed
11-06-14 12:36 ferg Resolution open => fixed
11-06-14 12:36 ferg Fixed in Version  => 4.0.42

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