WebConsole fails to register if Http Service is registered after Web Console 
start
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                 Key: FELIX-2034
                 URL: https://issues.apache.org/jira/browse/FELIX-2034
             Project: Felix
          Issue Type: Bug
          Components: Web Console
    Affects Versions: webconsole-2.0.6
            Reporter: Felix Meschberger
            Assignee: Felix Meschberger
             Fix For: webconsole-3.0.0


With fixing FELIX- 2009 the field webManagerRoot is only assigned if the 
OsgiManager is bound to the Http Service. If the OsgiManager starts and is 
configured before the Http Service is registered, the field remains unset and 
registration of the Http Service may cause the following dump:

03.02.2010 09:16:47.216 *ERROR* [FelixStartLevel]
org.apache.felix.webconsole bindHttpService: Problem setting up
(org.ops4j.lang.NullArgumentException: Alias is null.)
org.ops4j.lang.NullArgumentException: Alias is null.
        at 
org.ops4j.lang.NullArgumentException.validateNotNull(NullArgumentException.java:75)
        at 
org.ops4j.pax.web.service.internal.model.ServletModel.validateAlias(ServletModel.java:120)
        at 
org.ops4j.pax.web.service.internal.model.ServletModel.<init>(ServletModel.java:44)
        at 
org.ops4j.pax.web.service.internal.HttpServiceStarted.registerServlet(HttpServiceStarted.java:128)
        at 
org.ops4j.pax.web.service.internal.HttpServiceProxy.registerServlet(HttpServiceProxy.java:53)
        at 
org.apache.felix.webconsole.internal.servlet.OsgiManager.bindHttpService(OsgiManager.java:689)
        at 
org.apache.felix.webconsole.internal.servlet.OsgiManager$HttpServiceTracker.addingService(OsgiManager.java:498)
        at 
org.osgi.util.tracker.ServiceTracker$Tracked.trackAdding(ServiceTracker.java:1030)
        at 
org.osgi.util.tracker.ServiceTracker$Tracked.track(ServiceTracker.java:1008)


The only resolution here is to restart the WebConsole bundle or reconfigure the 
Web Console for the registration to take place again.

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