Application startup fails occasionally because of undefined order of 
contributions
----------------------------------------------------------------------------------

         Key: TAPESTRY-760
         URL: http://issues.apache.org/jira/browse/TAPESTRY-760
     Project: Tapestry
        Type: Bug
  Components: Framework  
    Versions: 4.0    
 Environment: Windows NT; IBM JDK 1.4.1, Tapestry-4.0-beta-13
    Reporter: Michael Frericks


The order of contributions to 'tapestry.init.ApplicationInitializers' is 
important. Otherwise a NPE occurs.

The "service:tapestry.init.ApplicationSpecificationInitializer" has to be 
executed before "service:tapestry.globals.SetupServletApplicationGlobals".

The ApplicationSpecificationInitializer sets values the 
SetupServletApplicationGlobals relies on.

Solution:

Change in 'tapestry.init.xml':

  <contribution configuration-id="ApplicationInitializers">
    <command id="WebContextInitializer" object="service:WebContextInitializer" 
before="*"/>
    <command id="ApplicationSpecificationInitializer" 
object="service:ApplicationSpecificationInitializer"/>
  </contribution>

to

  <contribution configuration-id="ApplicationInitializers">
    <command id="WebContextInitializer" object="service:WebContextInitializer" 
before="*"/>
    <command id="ApplicationSpecificationInitializer" 
object="service:ApplicationSpecificationInitializer" 
before="tapestry.globals.SetupServletApplicationGlobals" />
  </contribution>

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