Program: 38995
Project: 38995
Buggy source:
@Override public void handleRequestBody(SolrQueryRequest req,SolrQueryResponse rsp) throws Exception {
  SolrIndexSearcher searcher=req.getSearcher();
  SchemaField uniqueKeyField=searcher.getSchema().getUniqueKeyField();
  ModifiableSolrParams params=new ModifiableSolrParams(req.getParams());
  configureSolrParameters(req,params,uniqueKeyField.getName());
  ReturnFields returnFields=new SolrReturnFields(req);
  rsp.setReturnFields(returnFields);
  int flags=0;
  if (returnFields.wantsScore()) {
    flags|=SolrIndexSearcher.GET_SCORES;
  }
  String defType=params.get(QueryParsing.DEFTYPE,EDISMAX);
  String mainQueryDefType=params.get(RFParams.RF_DEFTYPE,EDISMAX);
  String q=params.get(CommonParams.Q);
  String mainQ=params.get(RFParams.RF_QUERY);
  Query query=null;
  Query mainQuery=null;
  SortSpec sortSpec=null;
  QParser parser=null;
  QParser mainQueryParser=null;
  List<Query> targetFqFilters=null;
  List<Query> rfFqFilters=null;
  try {
    if (q != null) {
      parser=QParser.getParser(q,defType,req);
      query=parser.getQuery();
      sortSpec=parser.getSort(true);
    }
 else {
      parser=QParser.getParser(null,defType,req);
      sortSpec=parser.getSort(true);
    }
    targetFqFilters=getFilters(req,CommonParams.FQ);
    rfFqFilters=getFilters(req,RFParams.FQ);
  }
 catch (  SyntaxError e) {
    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,e);
  }
  try {
    if (mainQ != null) {
      mainQueryParser=QParser.getParser(mainQ,mainQueryDefType,req);
      mainQuery=mainQueryParser.getQuery();
    }
  }
 catch (  SyntaxError e) {
    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,e);
  }
  RFHelper rfhelper=new RFHelper(params,searcher,uniqueKeyField,parser);
  RFParams.TermStyle termStyle=RFParams.TermStyle.get(params.get(RFParams.INTERESTING_TERMS));
  RFResult RFResult=null;
  DocListAndSet rfDocs=null;
  Reader reader=null;
  try {
    int start=params.getInt(CommonParams.START,0);
    int rows=params.getInt(CommonParams.ROWS,10);
    if (q == null || q.trim().length() < 1) {
      reader=getContentStreamReader(req,reader);
      q="String_Node_Str";
    }
    if (reader != null) {
      RFResult=rfhelper.getMatchesFromContentSteam(reader,start,rows,rfFqFilters,flags,sortSpec.getSort(),mainQuery);
    }
 else     if (q != null) {
      RFResult=getMoreLikeTheseFromQuery(rsp,params,flags,q,query,mainQuery,sortSpec,targetFqFilters,rfFqFilters,searcher,rfhelper,start,rows);
    }
 else {
      throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,"String_Node_Str");
    }
    if (RFResult != null) {
      rfDocs=RFResult.getDoclist();
    }
  }
  finally {
    if (reader != null) {
      reader.close();
    }
  }
  if (rfDocs == null) {
    rfDocs=new DocListAndSet();
  }
  rsp.add("String_Node_Str",rfDocs.docList);
  if (RFResult != null && RFResult.rawRFQuery != null) {
    rsp.add(RFParams.PREFIX + "String_Node_Str",RFResult.rawRFQuery.toString());
  }
  if (RFResult != null && termStyle != RFParams.TermStyle.NONE) {
    addInterestingTerms(rsp,termStyle,RFResult);
  }
  if (params.getBool(FacetParams.FACET,false)) {
    addFacet(req,rsp,params,rfDocs);
  }
  addDebugInfo(req,rsp,q,rfFqFilters,rfhelper,RFResult,rfDocs);
}

Fixed version (ground truth):
@Override public void handleRequestBody(SolrQueryRequest req,SolrQueryResponse rsp) throws Exception {
  SolrIndexSearcher searcher=req.getSearcher();
  SchemaField uniqueKeyField=searcher.getSchema().getUniqueKeyField();
  ModifiableSolrParams params=new ModifiableSolrParams(req.getParams());
  configureSolrParameters(req,params,uniqueKeyField.getName());
  ReturnFields returnFields=new SolrReturnFields(req);
  rsp.setReturnFields(returnFields);
  int flags=0;
  if (returnFields.wantsScore()) {
    flags|=SolrIndexSearcher.GET_SCORES;
  }
  String defType=params.get(QueryParsing.DEFTYPE,EDISMAX);
  String mainQueryDefType=params.get(RFParams.RF_DEFTYPE,EDISMAX);
  String userQ=params.get(CommonParams.Q);
  String rfQ=params.get(RFParams.RF_QUERY);
  Query rfQuery=null;
  Query userQuery=null;
  SortSpec sortSpec=null;
  QParser rfQueryParser=null;
  QParser userQueryParser=null;
  List<Query> targetFqFilters=null;
  List<Query> rfFqFilters=null;
  try {
    if (rfQ != null) {
      rfQueryParser=QParser.getParser(rfQ,defType,req);
      rfQuery=rfQueryParser.getQuery();
      sortSpec=rfQueryParser.getSort(true);
    }
 else {
      rfQueryParser=QParser.getParser(null,defType,req);
      sortSpec=rfQueryParser.getSort(true);
    }
    targetFqFilters=getFilters(req,CommonParams.FQ);
    rfFqFilters=getFilters(req,RFParams.FQ);
  }
 catch (  SyntaxError e) {
    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,e);
  }
  try {
    if (userQ != null) {
      userQueryParser=QParser.getParser(userQ,mainQueryDefType,req);
      userQuery=userQueryParser.getQuery();
    }
  }
 catch (  SyntaxError e) {
    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,e);
  }
  RFHelper rfhelper=new RFHelper(params,searcher,uniqueKeyField,rfQueryParser);
  RFParams.TermStyle termStyle=RFParams.TermStyle.get(params.get(RFParams.INTERESTING_TERMS));
  RFResult RFResult=null;
  DocListAndSet rfDocs=null;
  Reader reader=null;
  try {
    int start=params.getInt(CommonParams.START,0);
    int rows=params.getInt(CommonParams.ROWS,10);
    if (rfQ == null || rfQ.trim().length() < 1) {
      reader=getContentStreamReader(req,reader);
    }
    if (reader != null) {
      rfQ="String_Node_Str";
      RFResult=rfhelper.getMatchesFromContentSteam(reader,start,rows,rfFqFilters,flags,sortSpec.getSort(),userQuery);
    }
 else     if (rfQ != null) {
      RFResult=getMoreLikeTheseFromQuery(rsp,params,flags,rfQ,rfQuery,userQuery,sortSpec,targetFqFilters,rfFqFilters,searcher,rfhelper,start,rows);
    }
 else {
      throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,"String_Node_Str");
    }
    if (RFResult != null) {
      rfDocs=RFResult.getDoclist();
    }
  }
  finally {
    if (reader != null) {
      reader.close();
    }
  }
  if (rfDocs == null) {
    rfDocs=new DocListAndSet();
  }
  rsp.add("String_Node_Str",rfDocs.docList);
  if (RFResult != null && RFResult.rawRFQuery != null) {
    rsp.add(RFParams.PREFIX + "String_Node_Str",RFResult.rawRFQuery.toString());
  }
  if (RFResult != null && termStyle != RFParams.TermStyle.NONE) {
    addInterestingTerms(rsp,termStyle,RFResult);
  }
  if (params.getBool(FacetParams.FACET,false)) {
    addFacet(req,rsp,params,rfDocs);
  }
  addDebugInfo(req,rsp,rfQ,rfFqFilters,rfhelper,RFResult,rfDocs);
}