NullPointerException

[Mark Fenbers]

Greetings!

Attached is a snippet from solrconfig.xml pertaining to my spellcheck 
efforts.  When I use the Admin UI (v5.3.0), and check the 
spellcheck.build box, I get a NullPointerException stacktrace.  The 
actual stacktrace is at the bottom of the attachment.  The 
FileBasedSpellChecker.build is clearly the problem, but I cannot figure 
out why.  /usr/share/dict/words exists and has global read permissions.  
I displayed the file and see no issues (i.e., one word per line) 
although some "words" are a string of digits, but that shouldn't matter.

Does my snippet give any clues about why I would get this error? Is my 
stripped down configuration missing something, perhaps?

Mark
  <searchComponent name="spellcheck" class="solr.SpellCheckComponent">
    <str name="queryAnalyzerFieldType">text_en</str>

    <!-- A spellchecker that reads the list of words from a file -->
    
       <lst name="spellchecker">
         <str name="classname">solr.FileBasedSpellChecker</str>
        <str name="field">logtext</str>         
        <str name="name">FileDict</str>
         <str name="sourceLocation">/usr/share/dict/words</str>
         <str name="characterEncoding">UTF-8</str>
         <str 
name="spellcheckIndexDir">/localapps/dev/EventLog/solr/EventLog2/data/spFile</str>
       </lst>
      
  </searchComponent>

  <requestHandler name="/ELspell" class="solr.SearchHandler" startup="lazy">
    <lst name="defaults">
      <str name="spellcheck.dictionary">FileDict</str>
<!--      <str name="spellcheck.dictionary">wordbreak</str>-->
      <str name="spellcheck">on</str>
      <str name="spellcheck.extendedResults">true</str>
      <str name="spellcheck.count">10</str>
      <str name="spellcheck.alternativeTermCount">5</str>
      <str name="spellcheck.maxResultsForSuggest">5</str>
      <str name="spellcheck.collate">true</str>
      <str name="spellcheck.collateExtendedResults">true</str>
      <str name="spellcheck.maxCollationTries">10</str>
      <str name="spellcheck.maxCollations">5</str>
    </lst>
    <arr name="last-components">
      <str>spellcheck</str>
    </arr>
  </requestHandler>


    "trace": "java.lang.NullPointerException\n\tat 
org.apache.lucene.search.spell.SpellChecker.indexDictionary(SpellChecker.java:509)\n\tat
 
org.apache.solr.spelling.FileBasedSpellChecker.build(FileBasedSpellChecker.java:74)\n\tat
 
org.apache.solr.handler.component.SpellCheckComponent.prepare(SpellCheckComponent.java:124)\n\tat
 
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:251)\n\tat
 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)\n\tat
 org.apache.solr.core.SolrCore.execute(SolrCore.java:2068)\n\tat 
org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:669)\n\tat 
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:462)\n\tat 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:210)\n\tat
 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:179)\n\tat
 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)\n\tat
 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)\n\tat
 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\n\tat
 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)\n\tat
 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)\n\tat
 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)\n\tat
 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)\n\tat 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)\n\tat
 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)\n\tat
 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\tat
 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)\n\tat
 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)\n\tat
 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)\n\tat
 org.eclipse.jetty.server.Server.handle(Server.java:499)\n\tat 
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)\n\tat 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)\n\tat
 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)\n\tat
 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)\n\tat
 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)\n\tat
 java.lang.Thread.run(Thread.java:745)\n",