SEVERE: org.apache.solr.common.SolrException: ERROR: multiple values encountered for non multiValued field

From Foochal

Error

I have a field defined in solr schema.xml called summary.

 <field name="summary" type="text" indexed="true" stored="true" />

When I try to store a value with which has "," character, I get this error.

Jul 15, 2009 7:39:14 PM org.apache.solr.common.SolrException log
SEVERE: org.apache.solr.common.SolrException: ERROR: [221761275] multiple values encountered for non multiValued field summary: [2005 Infiniti G35 Coupe in Framingham, Massachusetts, 2005 Infiniti G35 Coupe in Framingham, Massachusetts]
	at org.apache.solr.update.DocumentBuilder.toDocument(DocumentBuilder.java:216)
	at org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:58)
	at org.apache.solr.handler.XmlUpdateRequestHandler.processUpdate(XmlUpdateRequestHandler.java:196)
	at org.apache.solr.handler.XmlUpdateRequestHandler.handleRequestBody(XmlUpdateRequestHandler.java:123)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1204)
	at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:303)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:232)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:613)

Analysis

Most likely a "," is treated as a special character and the value is interpretted as a collection. The question is can this be configured, can "," be escaped.

Reason

Nevermind, I was accidentally calling the addDocument twice

 document.addField("summary", summary);
 document.addField("summary", summary);