solr addSortField

[judi <j....@netural.com>]

i am using solr to index and search documents. i have got the following
fields defined in my schema.xml

   <field name="id" type="string" indexed="true" stored="true"
required="true" /> 
   <field name="title" type="textgen" indexed="true" stored="true"/>
   <field name="date" type="date" indexed="true" stored="true"/>
   <field name="author" type="textgen" indexed="true" stored="true"/>
   <field name="number" type="textgen" indexed="true" stored="true"/>
   <field name="docType" type="textgen" indexed="true" stored="true"/>
   <field name="docTypeExact" type="string" indexed="true" stored="true"/>
   <field name="oemPartner" type="textgen" indexed="true" stored="true"/>
   <field name="languages" type="textgen" indexed="true" stored="true"
multiValued="true" omitNorms="true" />
   <field name="productGroup" type="textgen" indexed="true" stored="true"/>
   <field name="specificProductGroup" type="textgen" indexed="true"
stored="true"/>   
   <field name="url" type="textgen" indexed="true" stored="true"/>
   <field name="content" type="textgen" indexed="true" stored="true"/>
   <field name="users" type="textgen" indexed="true" stored="true"
multiValued="true" omitNorms="true" />
   
   <field name="docClass" type="string" indexed="true" stored="true"/>

   <field name="text" type="text" indexed="true" stored="false"
multiValued="true"/>
   
searching the index works perfectly well as long as i do not add a sort
field. as soon as i add the following command, the whole thing crashes:
solrQuery.addSortField("title", SolrQuery.ORDER.asc);

the strange thing about this is, that only sorting by some fields causes the
program to crash. sorting for example by "id" or "author" works without any
problem.

here is the error message i get when sorting by "title" or "oemPartner",
etc.:

org.apache.solr.client.solrj.SolrServerException: Error executing query
	at
org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:95)
	at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:118)
	at solrSearch.SolrSearch.search(SolrSearch.java:46)
	at solrSearch.Main.main(Main.java:54)
Caused by: org.apache.solr.common.SolrException:
4__javalangArrayIndexOutOfBoundsException_4___at_orgapachelucenesearchFieldCacheImpl$StringIndexCachecreateValueFieldCacheImpljava721___at_orgapachelucenesearchFieldCacheImpl$CachegetFieldCacheImpljava224___at_orgapachelucenesearchFieldCacheImplgetStringIndexFieldCacheImpljava692___at_orgapachelucenesearchFieldComparator$StringOrdValComparatorsetNextReaderFieldComparatorjava667___at_orgapachelucenesearchTopFieldCollector$OneComparatorNonScoringCollectorsetNextReaderTopFieldCollectorjava94___at_orgapachesolrsearchDocSetDelegateCollectorsetNextReaderDocSetHitCollectorjava140___at_orgapachelucenesearchIndexSearchersearchIndexSearcherjava249___at_orgapachelucenesearchSearchersearchSearcherjava171___at_orgapachesolrsearchSolrIndexSearchergetDocListAndSetNCSolrIndexSearcherjava1101___at_orgapachesolrsearchSolrIndexSearchergetDocListCSolrIndexSearcherjava880___at_orgapachesolrsearchSolrIndexSearchersearchSolrIndexSearcherjava341___at_orgapachesolrhandlercomponentQueryComponentprocessQueryComponentjava182___at_orgapachesolrhandlercomponentSearchHandlerhandleRequestBodySearchHandlerjava195___at_orgapachesolrhandlerRequestHandlerBasehandleRequestRequestHandlerBasejava131___at_orgapachesolrcoreSolrCoreexecuteSolrCorejava1316___at_orgapachesolrservletSolrDispatchFilterexecuteSolrDispatchFilterjava338___at_orgapachesolrservletSolrDispatchFilterdoFilterSolrDispatchFilterjava241___at_orgmortbayjettyservletServletHandler$CachedChaindoFilterServletHandlerjava1089___at_orgmortbayjettyservletServletHandlerhandleServletHandlerjava365___at_orgmortbayjettysecuritySecurityHandlerhandleSecurityHandlerjava216___at_orgmortbayjettyservletSessionHandlerhandleSessionHandlerjava181___at_orgmortbayjettyhandlerContextHandlerhandleContextHandlerjava712___at_orgmortbayjettywebappWebAppContexthandleWebAppContextjava405___at_orgmortbayjet

4__javalangArrayIndexOutOfBoundsException_4___at_orgapachelucenesearchFieldCacheImpl$StringIndexCachecreateValueFieldCacheImpljava721___at_orgapachelucenesearchFieldCacheImpl$CachegetFieldCacheImpljava224___at_orgapachelucenesearchFieldCacheImplgetStringIndexFieldCacheImpljava692___at_orgapachelucenesearchFieldComparator$StringOrdValComparatorsetNextReaderFieldComparatorjava667___at_orgapachelucenesearchTopFieldCollector$OneComparatorNonScoringCollectorsetNextReaderTopFieldCollectorjava94___at_orgapachesolrsearchDocSetDelegateCollectorsetNextReaderDocSetHitCollectorjava140___at_orgapachelucenesearchIndexSearchersearchIndexSearcherjava249___at_orgapachelucenesearchSearchersearchSearcherjava171___at_orgapachesolrsearchSolrIndexSearchergetDocListAndSetNCSolrIndexSearcherjava1101___at_orgapachesolrsearchSolrIndexSearchergetDocListCSolrIndexSearcherjava880___at_orgapachesolrsearchSolrIndexSearchersearchSolrIndexSearcherjava341___at_orgapachesolrhandlercomponentQueryComponentprocessQueryComponentjava182___at_orgapachesolrhandlercomponentSearchHandlerhandleRequestBodySearchHandlerjava195___at_orgapachesolrhandlerRequestHandlerBasehandleRequestRequestHandlerBasejava131___at_orgapachesolrcoreSolrCoreexecuteSolrCorejava1316___at_orgapachesolrservletSolrDispatchFilterexecuteSolrDispatchFilterjava338___at_orgapachesolrservletSolrDispatchFilterdoFilterSolrDispatchFilterjava241___at_orgmortbayjettyservletServletHandler$CachedChaindoFilterServletHandlerjava1089___at_orgmortbayjettyservletServletHandlerhandleServletHandlerjava365___at_orgmortbayjettysecuritySecurityHandlerhandleSecurityHandlerjava216___at_orgmortbayjettyservletSessionHandlerhandleSessionHandlerjava181___at_orgmortbayjettyhandlerContextHandlerhandleContextHandlerjava712___at_orgmortbayjettywebappWebAppContexthandleWebAppContextjava405___at_orgmortbayjet

request: http://localhost:8983/solr/select?q=text:(apache) AND
docClass:(document) AND users:(aarman) AND docType:(repair
drawing)&facet=true&facet.mincount=1&facet.field=docTypeExact&sort=oemPartner
asc&wt=javabin&version=1
	at
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:435)
	at
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:244)
	at
org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:89)
	... 3 more
	
can anybody help me?
Judi
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