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From Daniel Cassiano <>
Subject Problem with ResponseBuilder
Date Wed, 26 Aug 2009 01:28:58 GMT
Hi folks,

I'm writing some search component to Solr and I'm having some troubles with
the ResponseBuilder.
I'd like to add to response, eg: only 5 documents of a search.
My problem is when I try to add these docs to the ResponseBuilder.

A snipet of the code:
QParser parser = QParser.getParser(rb.getQueryString(), defType, req);
rb.setQuery( parser.getQuery() );
rb.setSortSpec( parser.getSort(true) );

DocListAndSet results = new DocListAndSet();
Hits h =;

for (int i=0;i<5;i++) {


The expected result is a response with only 5 documents.

Is this the correct way to obtain the docs?
I'm receiving a null java.lang.NullPointerException with this code.

Sorry but I didn' t found the solution anywhere and I'm a noob with Solr.

Thanks in advance.

Daniel Cassiano

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