Program: 25640
Project: 25640
Buggy source:
@POST @Path("String_Node_Str") @Produces("String_Node_Str") public String convert(@PathParam("String_Node_Str") final String from,@PathParam("String_Node_Str") final String to,@FormParam("String_Node_Str") final String content){
  RESTConverter.LOG.log(Level.INFO,"String_Node_Str" + from + "String_Node_Str"+ to+ "String_Node_Str");
  if ((null == content) || (0 == content.length())) {
    throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str");
  }
  final ByteArrayOutputStream baos=new ByteArrayOutputStream();
  final InputStream stream=new ByteArrayInputStream(content.getBytes(StandardCharsets.UTF_8));
  Model model;
  try {
    if (AbstractConverter.RSPEC_REQUEST.equalsIgnoreCase(from)) {
      model=RequestConverter.getModel(stream);
    }
 else     if (AbstractConverter.RSPEC_ADVERTISEMENT.equalsIgnoreCase(from)) {
      model=AdvertisementConverter.getModel(stream);
    }
 else     if (AbstractConverter.RSPEC_MANIFEST.equalsIgnoreCase(from)) {
      model=ManifestConverter.getModel(stream);
    }
 else     if (AbstractConverter.TTL.equalsIgnoreCase(from)) {
      model=new Parser(stream).getModel();
    }
 else     if (AbstractConverter.TOSCA.equalsIgnoreCase(from)) {
      model=Tosca2OMN.getModel(stream);
    }
 else {
      throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str" + from + "String_Node_Str");
    }
    if (AbstractConverter.RSPEC_ADVERTISEMENT.equalsIgnoreCase(to)) {
      final String rspec=AdvertisementConverter.getRSpec(model);
      baos.write(rspec.getBytes());
    }
 else     if (AbstractConverter.RSPEC_MANIFEST.equalsIgnoreCase(to)) {
      final String rspec=ManifestConverter.getRSpec(model);
      baos.write(rspec.getBytes());
    }
 else     if (AbstractConverter.TOSCA.equalsIgnoreCase(to)) {
      final String toplogy=OMN2Tosca.getTopology(model);
      baos.write(toplogy.getBytes());
    }
 else     if (AbstractConverter.TTL.equalsIgnoreCase(to)) {
      RDFDataMgr.write(baos,model,Lang.TTL);
    }
 else {
      throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str" + to + "String_Node_Str");
    }
  }
 catch (  RiotException|MultipleNamespacesException|RequiredResourceNotFoundException|MultiplePropertyValuesException|UnsupportedException e) {
    throw new ConverterWebApplicationException(Response.Status.BAD_REQUEST,e);
  }
catch (  JAXBException|InvalidModelException|IOException e) {
    throw new ConverterWebApplicationException(Response.Status.INTERNAL_SERVER_ERROR,e);
  }
  return baos.toString();
}

Fixed version (ground truth):
@POST @Path("String_Node_Str") @Produces("String_Node_Str") public String convert(@PathParam("String_Node_Str") final String from,@PathParam("String_Node_Str") final String to,@FormParam("String_Node_Str") final String content){
  RESTConverter.LOG.log(Level.INFO,"String_Node_Str" + from + "String_Node_Str"+ to+ "String_Node_Str");
  if ((null == content) || (0 == content.length())) {
    throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str");
  }
  final ByteArrayOutputStream baos=new ByteArrayOutputStream();
  final InputStream stream=new ByteArrayInputStream(content.getBytes(StandardCharsets.UTF_8));
  Model model;
  try {
    if (AbstractConverter.RSPEC_REQUEST.equalsIgnoreCase(from)) {
      model=RequestConverter.getModel(stream);
    }
 else     if (AbstractConverter.RSPEC_ADVERTISEMENT.equalsIgnoreCase(from)) {
      model=AdvertisementConverter.getModel(stream);
    }
 else     if (AbstractConverter.RSPEC_MANIFEST.equalsIgnoreCase(from)) {
      model=ManifestConverter.getModel(stream);
    }
 else     if (AbstractConverter.TTL.equalsIgnoreCase(from)) {
      model=new Parser(stream).getInfModel();
    }
 else     if (AbstractConverter.TOSCA.equalsIgnoreCase(from)) {
      model=Tosca2OMN.getModel(stream);
    }
 else {
      throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str" + from + "String_Node_Str");
    }
    if (AbstractConverter.RSPEC_ADVERTISEMENT.equalsIgnoreCase(to)) {
      final String rspec=AdvertisementConverter.getRSpec(model);
      baos.write(rspec.getBytes());
    }
 else     if (AbstractConverter.RSPEC_MANIFEST.equalsIgnoreCase(to)) {
      final String rspec=ManifestConverter.getRSpec(model);
      baos.write(rspec.getBytes());
    }
 else     if (AbstractConverter.TOSCA.equalsIgnoreCase(to)) {
      final String toplogy=OMN2Tosca.getTopology(model);
      baos.write(toplogy.getBytes());
    }
 else     if (AbstractConverter.TTL.equalsIgnoreCase(to)) {
      RDFDataMgr.write(baos,model,Lang.TTL);
    }
 else {
      throw new ConverterWebApplicationException(Response.Status.NOT_ACCEPTABLE,"String_Node_Str" + to + "String_Node_Str");
    }
  }
 catch (  RiotException|MultipleNamespacesException|RequiredResourceNotFoundException|MultiplePropertyValuesException|UnsupportedException e) {
    throw new ConverterWebApplicationException(Response.Status.BAD_REQUEST,e);
  }
catch (  JAXBException|InvalidModelException|IOException e) {
    throw new ConverterWebApplicationException(Response.Status.INTERNAL_SERVER_ERROR,e);
  }
  return baos.toString();
}