Program: 17954
Project: 17954
Buggy source:
protected SynonymParser getParser(Analyzer analyzer){
  return new NewSolrSynonymParser(true,true,analyzer){
    public void add(    Reader in) throws IOException, ParseException {
      LineNumberReader br=new LineNumberReader(in);
      StringBuffer newBr=new StringBuffer();
      String line=null;
      String[] parts;
      try {
        while ((line=br.readLine()) != null) {
          if (line.length() == 0 || line.charAt(0) == '#') {
            continue;
          }
          String[] sides=line.split("String_Node_Str");
          if (sides.length > 1) {
            String[] names=getNames(sides[1]);
            parts=sides[0].split("String_Node_Str");
            if (isLongForm(parts) && containsLongForm(names) > 0) {
              newBr.append(escape(makeShortForm(parts)) + "String_Node_Str" + sides[0]+ "String_Node_Str"+ buildLine(names));
              newBr.append("String_Node_Str");
            }
          }
 else {
            String[] names=getNames(sides[0]);
            if (containsLongForm(names) > 1) {
              String newLine=buildLine(names);
              for (int i=0; i < names.length; i++) {
                parts=names[i].split("String_Node_Str");
                if (isLongForm(parts)) {
                  newBr.append(escape(makeShortForm(parts)) + "String_Node_Str" + newLine);
                  newBr.append("String_Node_Str");
                }
              }
            }
          }
        }
      }
 catch (      IllegalArgumentException e) {
        ParseException ex=new ParseException("String_Node_Str" + br.getLineNumber(),0);
        ex.initCause(e);
        throw ex;
      }
 finally {
        br.close();
      }
      super.add(new InputStreamReader(new ByteArrayInputStream(newBr.toString().getBytes()),Charset.forName("String_Node_Str").newDecoder()));
    }
    @Override public void add(    CharsRef input,    CharsRef output,    boolean includeOrig){
      super.add(input,output,true);
    }
    private String[] getNames(    String vals){
      List<String> nn=StrUtils.splitSmart(vals,',');
      String names[]=new String[nn.size()];
      int j=0;
      for (      String n : nn) {
        names[j]=unescape(n);
        j++;
      }
      return names;
    }
    private String buildLine(    String[] names){
      HashSet<String> set=new HashSet<String>();
      StringBuilder out=new StringBuilder();
      boolean notFirst=false;
      for (      String name : names) {
        String[] p=name.split("String_Node_Str");
        if (isLongForm(p)) {
          set.add(makeShortForm(p));
        }
        set.add(name);
      }
      for (      String name : set) {
        if (notFirst)         out.append("String_Node_Str");
        out.append(escape(name));
        notFirst=true;
      }
      return out.toString();
    }
    private String unescape(    String s){
      return s.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str","String_Node_Str");
    }
    private String escape(    String s){
      return s.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str","String_Node_Str");
    }
    private String makeShortForm(    String[] parts){
      StringBuilder out=new StringBuilder();
      out.append(parts[0]);
      for (int i=1; i < parts.length; i++) {
        out.append("String_Node_Str");
        out.append(parts[i].substring(0,1));
      }
      return out.toString();
    }
    private boolean isLongForm(    String[] parts){
      boolean res=false;
      for (int i=1; i < parts.length; i++) {
        if (parts[i].length() > 1)         return true;
      }
      return res;
    }
    private int containsLongForm(    String[] names){
      int i=0;
      for (      String name : names) {
        if (isLongForm(name.split("String_Node_Str"))) {
          i++;
        }
      }
      return i;
    }
  }
;
}

Fixed version (ground truth):
protected SynonymParser getParser(Analyzer analyzer){
  char sep=',';
  if (args.containsKey("String_Node_Str") && args.get("String_Node_Str").equals("String_Node_Str")) {
    sep=';';
  }
  ;
  final Character charSeparator=sep;
  return new NewSolrSynonymParser(true,true,analyzer){
    public void add(    Reader in) throws IOException, ParseException {
      LineNumberReader br=new LineNumberReader(in);
      StringBuffer newBr=new StringBuffer();
      String line=null;
      String[] parts;
      try {
        while ((line=br.readLine()) != null) {
          if (line.length() == 0 || line.charAt(0) == '#') {
            continue;
          }
          String[] sides=line.split("String_Node_Str");
          if (sides.length > 1) {
            String[] names=getNames(sides[1]);
            parts=AuthorUtils.splitName(sides[0]);
            if (isLongForm(parts) && containsLongForm(names) > 0) {
              newBr.append(escape(makeShortForm(parts)) + "String_Node_Str" + sides[0]+ "String_Node_Str"+ buildLine(names));
              newBr.append("String_Node_Str");
            }
          }
 else {
            String[] names=getNames(sides[0]);
            if (containsLongForm(names) > 1) {
              String newLine=buildLine(names);
              for (int i=0; i < names.length; i++) {
                parts=AuthorUtils.splitName(sides[i]);
                if (isLongForm(parts)) {
                  newBr.append(escape(makeShortForm(parts)) + "String_Node_Str" + newLine);
                  newBr.append("String_Node_Str");
                }
              }
            }
          }
        }
      }
 catch (      IllegalArgumentException e) {
        ParseException ex=new ParseException("String_Node_Str" + br.getLineNumber(),0);
        ex.initCause(e);
        throw ex;
      }
 finally {
        br.close();
      }
      super.add(new InputStreamReader(new ByteArrayInputStream(newBr.toString().getBytes()),Charset.forName("String_Node_Str").newDecoder()));
    }
    @Override public void add(    CharsRef input,    CharsRef output,    boolean includeOrig){
      super.add(input,output,true);
    }
    private String[] getNames(    String vals){
      List<String> nn=StrUtils.splitSmart(vals,charSeparator);
      String names[]=new String[nn.size()];
      int j=0;
      for (      String n : nn) {
        names[j]=unescape(n);
        j++;
      }
      return names;
    }
    private String buildLine(    String[] names){
      HashSet<String> set=new HashSet<String>();
      StringBuilder out=new StringBuilder();
      boolean notFirst=false;
      for (      String name : names) {
        String[] p=AuthorUtils.splitName(name);
        if (isLongForm(p)) {
          set.add(makeShortForm(p));
        }
        set.add(name);
      }
      for (      String name : set) {
        if (notFirst)         out.append("String_Node_Str");
        out.append(escape(name));
        notFirst=true;
      }
      return out.toString();
    }
    private String unescape(    String s){
      return s.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str" + charSeparator,charSeparator.toString());
    }
    private String escape(    String s){
      return s.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str","String_Node_Str");
    }
    private String makeShortForm(    String[] parts){
      StringBuilder out=new StringBuilder();
      out.append(parts[0]);
      for (int i=1; i < parts.length; i++) {
        out.append("String_Node_Str");
        out.append(parts[i].substring(0,1));
      }
      return out.toString();
    }
    private boolean isLongForm(    String[] parts){
      boolean res=false;
      for (int i=1; i < parts.length; i++) {
        if (parts[i].length() > 1)         return true;
      }
      return res;
    }
    private int containsLongForm(    String[] names){
      int i=0;
      for (      String name : names) {
        if (isLongForm(AuthorUtils.splitName(name))) {
          i++;
        }
      }
      return i;
    }
  }
;
}