Re: java.lang.NoSuchFieldError: ROLE

Max,

do you use the jars from
http://www.keelframework.org/maven/excalibur-mpool/jars ?

Just because you mentioned Ibiblio... and as I see it the jar is very
old (from January 2004). Maybe there is your problem...

Cheers,

Aleks

On Sat, 2005-04-23 at 13:16 +0200, Max wrote:
> Hi,
> 
> Help please! I'm getting the java.lang.NoSuchFieldError: ROLE error 
> again and can't seem to get rid of it. I've tried a completly fresh 
> install of everything and still no luck. The problem does not occur if I 
> build and deploy the default example but does so with my app.
> 
> I don't know where to find the source code for excalibur that generated 
> the jars we are using but I found this code whilst checking the web SVN 
> interface at 
> http://cvs.apache.org/viewcvs.cgi/excalibur/trunk/fortress/container-impl/src/java/org/apache/avalon/fortress/util/?root=Apache-SVN 
> :
> 
> <snippet from ContextManager.java>
> ...
>     import org.apache.excalibur.mpool.PoolManager;
> ...
>     protected void initializePoolManager() throws Exception
>     {
>         try
>         {
> line 545:            m_poolManager = (PoolManager) m_rootContext.get( 
> PoolManager.ROLE ); 
>         }
>         catch ( ContextException ce )
>         {
>             final PoolManager pm = new DefaultPoolManager( m_sink );
>             assumeOwnership( pm );
>             m_poolManager = pm;
>         }
>     }
> ...
> </snippet>
> 
> The line numbers do not match (543 in exception vs 545 in source) so I'm 
> not looking at the exact same source, however the code implies that 
> PoolManager.ROLE is not defined. I could not find where the 
> PoolManager.java source was on the apache SVN server so I extracted out 
> the PoolManager.class from the excalibur-mpool-1.0.jar and decompiled 
> it. It gives:
> 
>     // JBuilder API Decompiler stub source generated from class file
>     // 2005/04/23
>     // -- implementation of methods is not available
> 
>     package org.apache.excalibur.mpool;
> 
>     public abstract interface PoolManager {
> 
>       // Methods
>       Pool getManagedPool(ObjectFactory objectFactory, int _int) throws 
> Exception;
>     }
> 
> This code shows no definition of ROLE just as my error exception shows. 
> I've downloaded a fresh copy of excalibur-mpool-1.0.jar from ibiblio and 
> it has the same code so my jar file is not corrupt.
> 
> I'm not sure where to go from here as I don't know where to find the 
> sources for excalibur/avalon that we are using. I can only find an 
> excalibur-pool on apache.org (pool not mpool!). Any ideas anyone?
> 
> Thanks,
> Max
> 
> > Max,
> >
> > "Jyotish" should be able to predict everything and know everything :-)
> >
> > Just kidding.  The error below is strange.  The PoolManager interface, 
> > like any other Avalon service interface, defines the "ROLE" for that 
> > service.  It almost seems like your PoolManager class/JAR is corrupt 
> > (or, maybe the uber JAR is corrupt somehow), taking a wild guess.  If 
> > you have ever killed a Maven build while it is downloading 
> > dependencies, you can end up with a partial JAR, but the timestamp is 
> > newer, so Maven will not download it again.  Try deleting the 
> > excalibur-pool directory in your local Maven repo and building again.  
> > But, if it works sometimes and not other times, it may be a completely 
> > different problem (maybe synchronization problems/race conditions, etc.)
> >
> > Shash
> >
> >> I've been getitng this error after making incremental changes to my 
> >> project.xml file. I have not yet identified the pattern, but after 
> >> several iterations of development I always seem to end up with this 
> >> error. First on plugin 12 and now also on plugin 13. I've also 
> >> deleted project.bak before performing keel:maven and war.
> >>
> >> [KeelMetaInfoManager] Initializing
> >> java.lang.NoSuchFieldError: ROLE
> >>        at 
> >> org.apache.avalon.fortress.util.ContextManager.initializePoolManager(
> >> ContextManager.java:543)
> >>        at 
> >> org.apache.avalon.fortress.util.ContextManager.initialize(ContextMana
> >> ger.java:245)
> >>        at 
> >> org.apache.avalon.fortress.impl.DefaultContainerManager.getInitialize
> >> dContextManager(DefaultContainerManager.java:87)
> >>        at 
> >> org.apache.avalon.fortress.impl.DefaultContainerManager.<init>(Defaul
> >> tContainerManager.java:74)
> >>        at 
> >> org.apache.avalon.fortress.impl.DefaultContainerManager.<init>(Defaul
> >> tContainerManager.java:68)
> >>        at 
> >> org.keel.core.container.KeelContainerFactory.getContainerManager(Keel
> >> ContainerFactory.java:229)
> >>        at 
> >> org.keel.core.container.KeelContainerFactory.createContainer(KeelCont
> >> ainerFactory.java:624)
> >>        at 
> >> org.keel.core.container.KeelContainerFactory.createContainer(KeelCont
> >> ainerFactory.java:607)
> >>        at 
> >> org.keel.servers.KeelAbstractServer.initialize(KeelAbstractServer.jav
> >> a:126)
> >>        at 
> >> org.keel.servers.KeelAbstractServer.getContainer(KeelAbstractServer.j
> >> ava:106)
> >>        at 
> >> org.keel.servers.direct.KeelDirectServer.run(KeelDirectServer.java:61
> >> )
> >>
> >> I am also getting these warnings during build (not sure if they are 
> >> related):
> >>
> >>    [copy] Warning: Could not find file 
> >> D:\Proj\JyotishApplications\AstroMatch\AstroMatchServer-3.0\logkit.properties 
> >> to
> >> copy.
> >>    [copy] Warning: Could not find file 
> >> D:\Proj\JyotishApplications\AstroMatch\AstroMatchServer-3.0\roles.properties 
> >> to
> >> copy.
> >>    [copy] Warning: Could not find file 
> >> D:\Proj\JyotishApplications\AstroMatch\AstroMatchServer-3.0\instrument.propertie 
> >>
> >> s to copy.
> >>    [copy] Copying 1 file to 
> >> D:\Proj\JyotishApplications\AstroMatch\AstroMatchServer-3.0\target\axis\WEB-INF\lib 
> >>
> >>
> >> I have not found an easy way of getting back to a working build.
> >> Thanks for the help,
> >> Max
> >> http://keelframework.org/documentation.shtml
> >> Keelgroup mailing list
> >> [email protected]
> >> http://lists.keelframework.com/listinfo.cgi/keelgroup-keelframework.com
> >
> >
> >
> >
> > http://keelframework.org/documentation.shtml
> > Keelgroup mailing list
> > [email protected]
> > http://lists.keelframework.com/listinfo.cgi/keelgroup-keelframework.com
> >
> >
> >
> 
> http://keelframework.org/documentation.shtml
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> 
-- 
Aleksandar Vidakovic <[email protected]>

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