Better exception messages for classloader mishaps
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                 Key: SOLR-1425
                 URL: https://issues.apache.org/jira/browse/SOLR-1425
             Project: Solr
          Issue Type: New Feature
          Components: search
    Affects Versions: 1.3
            Reporter: Benson Margulies


If an idiot such as myself tries to specify a filter or such that lives in a 
parent classloader, such as the system classloader of a servlet container, Solr 
will fail to load it. The JVM is prone to create an exception that mentions 
some Solr interface as being missing instead of the filter itself. It would be 
less confusing for the miscreant if Solr were to try/catch ClassNotFound and 
NoClassDefError and throw its own exception with the name of the thing 
specified in the schema included in the message.



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