Solr Error Instantiating Request Handler
===

Ok, I give up. I can't find a solution for this. Full story: I'm using ManifoldCF v.5.1 running on Jetty to connect to Opentext (everything works, I can crawl Opentext) and now I have Solr 4.0 Alpha running on tomcat 7 connected to take the output from ManifoldCF. However, as soon as ManifoldCF tries to hand off the data to Solr. I get this error:

    SEVERE: null:org.apache.solr.common.SolrException: lazy loading error
            at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.getWra
    ppedHandler(RequestHandlers.java:256)
            at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.handle
    Request(RequestHandlers.java:238)
            at org.apache.solr.core.SolrCore.execute(SolrCore.java:1561)
            at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter
    .java:442)
            at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilte
    r.java:263)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
    icationFilterChain.java:243)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
    ilterChain.java:210)
            at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
    alve.java:224)
            at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
    alve.java:185)
            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
    ava:151)
            at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
    ava:100)
            at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
    929)
            at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
    ve.java:118)
            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
    a:405)
            at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
    :269)
            at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
    AbstractProtocol.java:515)
            at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoin
    t.java:300)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
            at java.lang.Thread.run(Unknown Source)
    Caused by: org.apache.solr.common.SolrException: Error Instantiating Request Han
    dler, org.apache.solr.handler.extraction.ExtractingRequestHandler failed to inst
    antiate org.apache.solr.request.SolrRequestHandler
            at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:434)
            at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:477)
            at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.getWra
    ppedHandler(RequestHandlers.java:247)
            ... 19 more
    Caused by: java.lang.ClassCastException: class org.apache.solr.handler.extractio
    n.ExtractingRequestHandler
            at java.lang.Class.asSubclass(Unknown Source)
            at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.
    java:399)
            at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:420)
            ... 21 more

I've tried several request handlers in solarconfig.xml they all fail the same way. I read that apache-solr-cell*.jar has to be in the solr.war but I can't seem to confirm that or incorporate it using ant. 
Please advise...
