Lucene Highlighter linkage Error

Question

Hello!
I am working with Tomcat. I have put the Lucene highlighter.jar in the folder lib. And I have created an extra css, where I say that the background color has to be yellow. The searchword has to be highlighted know.
I have got a dataTable in which the result of the following Lucene method is loaded:
public void search(String q,  File index, String [] fields, ArrayList subresult, int numresults)  throws Exception {
                   Directory fsDir = FSDirectory.getDirectory(index, false);
                   IndexSearcher is = new IndexSearcher(fsDir);
                    Analyzer analyzer = new StandardAnalyzer();
                    Fragmenter fragmenter = new SimpleFragmenter(100);
                    QueryParser queryparser = new MultiFieldQueryParser (fields, analyzer);
                              Query query = queryparser.parse(q);
                              Hits hits = is.search(query);
                              IndexReader reader=null;
                              query=query.rewrite(reader);
                              QueryScorer scorer = new QueryScorer(query);
                              SimpleHTMLFormatter formatter= new SimpleHTMLFormatter("<span class=\"highlight\">","</span>");
                              Highlighter high = new Highlighter(formatter,scorer);
                              high.setTextFragmenter(fragmenter);
                              numresults = numresults == -1 || numresults > hits.length() ? hits.length() : numresults;
                              String rating = "";
                              for (int i = 0; i <numresults; i++) {
                                   if (hits.score(i)>schwelli){
                                        float f = hits.score(i);
                                        if (0.9f <= f) {rating = "******";}
                                        else if (0.8f <= f && f<0.9f){rating = "*****";}
                                        else if (0.7f <= f && f<0.8f){rating = "****";}
                                        else if (0.6f <= f && f<0.7f){rating = "***";}
                                        else if (0.5f <= f && f<0.6f){rating = "**";}
                                        else if (f <= 0.5f){rating = "*";}
                                        Document doc = hits.doc(i);
                                        String abstracts =doc.get("ABSTRACTS");
                                        String title = doc.get("TITLE");
                                        TokenStream abstract_stream = analyzer.tokenStream(q, new StringReader(abstracts));
                                        TokenStream title_straem = analyzer.tokenStream(q, new StringReader(title));
                                        String fragment_abstract = high.getBestFragments(abstract_stream,abstracts, 5, "...");
                                        String fragment_title = high.getBestFragments(title_straem,title, 5, "...");
                                        if(fragment_title.length()==0){
                                                  setAusgabeTitle(doc.get("TITLE"));
                                        }else{
                                                  setAusgabeTitle(fragment_title);
                                        if(fragment_abstract.length()==0){
                                                  setAusgabeAbstract(doc.get("ABSTRACTS"));
                                        }else{
                                                  setAusgabeAbstract(fragment_abstract);
                                        //list.add(i+1+"\t"+q+"\t"+doc.get(entry_medline)+"\t"+hits.score(i)+"\t"+abstract_stream+"\t"+title_straem+"\t"+"MEDLINE");
                                   /*int No = i;
                                   subresult.add((new Integer(No)).toString());*/
                                   subresult.add(doc.get(entry_medline));
                                   subresult.add("No Id");
                                   subresult.add("No Id");
                                   float sco = hits.score(i);
                              subresult.add(rating);//(hits.score(i));
                              subresult.add(abstract-stream);
                              subresult.add(title_straem);
                              subresult.add("No hits for this index");
                              subresult.add("MEDLINE");
But I get the following error.
Error:
javax.servlet.ServletException: #{suggestBox.Search}: javax.faces.el.EvaluationException: java.lang.LinkageError: Class org/apache/lucene/search/Query violates loader constraints
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
Does someone know what I am doing wrong?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

Thank you guyz for your replies...Let me try to explain this a bit further.
Initially I got this error while testing a graphical mapping which was a straight forward ,source structure to JDBC UPDATE_INSERT structure without any functions or UDFs.
Then to check whether its my mapping problem I created some simple two field mappings as well , but all has the same problem now.While testing the mapping using the test tab you get the 'Class "com.sap.xi.tf._ <message mapping name> not found'
It gives a linkage_error while running the interface (runtime)
We tried restarting the Java Stack but with no luck
Mathews
Edited by: Mathews Joseph on May 4, 2009 8:24 AM
Edited by: Mathews Joseph on May 4, 2009 4:37 PM