RE: could not start merlin from main method

> -----Original Message-----
> From: Yura Ivanov [mailto:[email protected]]
> Sent: 06 September 2004 18:10
> To: Avalon framework users
> Subject: Re: could not start merlin from main method
> 
> You are right! It's something with dependencies, when I've declared in
> eclipse 4 dependencies all was right and merlin was successful started
>  <classpathentry kind="lib"
> path="C:/Programming/merlin/3.3/system/avalon-repository/jars/avalon-
> reposit
> ory-main-2.0.0.jar"/>
>  <classpathentry kind="lib"
>
path="C:/Programming/merlin/3.3/system/merlin/jars/merlin-api-3.3.0.jar"
/>
>  <classpathentry kind="lib"
> path="C:/Programming/merlin/3.3/system/avalon-framework/jars/avalon-
> framework-api-4.2.0.jar"/>
>  <classpathentry kind="lib"
> path="C:/Programming/merlin/3.3/system/avalon-repository/jars/avalon-
> reposit
> ory-cli-2.0.0.jar"/>

Interesting! 

But not what you need.

The only jar file you need for bootstrapping 3.3 is
avalon-repository-main-2.0.0.jar.  I tend to avoid including anything
else - i.e. if you look at the merlin-unit class it uses reflection as
opposed to direct dependencies.  If you really need to include the
kernel api then you will also need to include the following:

  avalon-framework-api
  avalon-composition-api
  avalon-logging-api
  avalon-meta-api


> but then when I've got the Kernal I want to get a component from it.
So I
> used Kernal.locate() method, but Eclipse tells me this
> 
> --- The type org.apache.avalon.composition.model.DeploymentModel
cannot be
> resolved.
> --- It is indirectly referenced from required .class files
> TestExecMerlin.java testmerlinwithmain/src/test line 70


Yep - that's a class from avalon-composition-api.


> ok, then I added lib for Ecpse
> <classpathentry kind="lib"
> path="C:/Programming/merlin/3.3/system/avalon-composition/jars/avalon-
> compos
> ition-api-2.0.0.jar"/>


Correct.


> 4)
> at test.TestExecMerlin.main(TestExecMerlin.java:68)
> Caused by: java.lang.NoClassDefFoundError:
> org/apache/avalon/meta/info/ServiceDescriptor


That's because you don't have the avalon-meta-api classes declared.


> and if I add all libs from system merlin dir then I've got the same
> message
> as I wrote at the beginning.
> And I don't know what I should to do if I want run it from Eclipse!

Golden rule - "as little as possible".

Cheers, Steve.


> Regards, Yuriy Ivanov.
> 
> 
> ----- Original Message -----
> From: "Stephen McConnell" <[email protected]>
> To: "'Avalon framework users'" <[email protected]>
> Sent: Monday, September 06, 2004 6:27 PM
> Subject: RE: could not start merlin from main method
> 
> 
> >
> > What are the dependencies that you have declared?  Specifically -
what
> > is in the classpath before merlin is kicking in?
> >
> > Basically this looks like a case of conflicting jar files in your
> > initial classloader.  Merlin is attempting to load the logging
system
> > but it looks like a different version of the logging classes already
> > exist in a higher classloader.
> >
> > Steve.
> >
> >
> 
> 
> 
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