Re: java.lang.NoSuchFieldError: ROLE

Hi Aleks,

I just downloaded and checked the excalibur-mpool-1.0.jar from

http://www.keelframework.org/maven/excalibur-mpool/jars

and it also does not have a ROLE field defined.

I have however found that (on ibiblio) there is a http://www.ibiblio.org/maven/excalibur-fortress/jars/excalibur-fortress-complete-1.0.jar that has a version of PoolManager.class that *does* have the ROLE field defined.

Perhaps ibiblio has the wrong version of excalibur-fortress-container-impl-1.2.jar? The jar that has ContextManager.class in it. I will use the repository that you recommend and rebuild my application now.

Do I still have to use the ibiblio repository for stuff like commons-xxx?

Max

>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
>>>>        
>>>>

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