[jbosstools-dev] ACTION REQUIRED: Should there be 2 versions of javax.servlet in JBDS?

[Mickael Istria]

On 04/15/2015 11:56 PM, Nick Boldt wrote:
> Just wondering if anyone knows WHY we include javax.servlet 3.0.0 and
> 3.1.0 in JBDS.
> More importantly... SHOULD we be including both? Or can we just include
> 3.1.0 and drop 3.0.0?
I have JBDS installed from installer, which basically ran a p2 director. 
And I get jetty 3.0.0 and jetty 3.1.0. Than means that while resolving 
what to installed, p2 has to keep both versions of javax.servlet. That's 
definitely a sign that our dependency chain currently need both (or p2 
wouldn't have installed both).

So I've tried the ultimate test:
$ cd jbdevstudio-9.0.0.Alpha2/studio
$ rm plugins/javax.servlet_3.0.0*
$ ./jbdevstudio
And saw

!ENTRY org.jboss.tools.ws.ui 4 0 2015-04-16 10:35:49.110
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: 
org.jboss.tools.ws.ui [967]
   Unresolved requirement: Import-Package: javax.servlet; 
version="[2.4.0,3.0.0)"

     at org.eclipse.osgi.container.Module.start(Module.java:434)
     at 
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1582)
     at 
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1561)
     at 
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1533)
     at 
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1476)
     at 
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
     at 
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
     at 
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)


Fun thing is that the javax.servlet_3.0.0 actually exports packages in 
version 2.6.0, whereas javax.servlet_3.1.0 exports them in version 3.1.0.

I've put that in a Jira https://issues.jboss.org/browse/JBIDE-19605
-- 
Mickael Istria
Eclipse developer at JBoss, by Red Hat <http://www.jboss.org/tools>
My blog <http://mickaelistria.wordpress.com> - My Tweets 
<http://twitter.com/mickaelistria>
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