Program: 51952
Project: 51952
Buggy source:
public int doStartTag() throws JspException {
  JspWriter out=pageContext.getOut();
  StringBuffer sb=new StringBuffer();
  try {
    HttpServletRequest hrq=(HttpServletRequest)pageContext.getRequest();
    Context context=UIUtil.obtainContext(hrq);
    List<Collection> collections=(List<Collection>)hrq.getAttribute("String_Node_Str");
    sb.append("String_Node_Str");
    if (name != null) {
      sb.append("String_Node_Str").append(name).append("String_Node_Str");
    }
    if (klass != null) {
      sb.append("String_Node_Str").append(klass).append("String_Node_Str");
    }
    if (id != null) {
      sb.append("String_Node_Str").append(id).append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    ResourceBundle msgs=ResourceBundle.getBundle("String_Node_Str",context.getCurrentLocale());
    String firstOption=msgs.getString("String_Node_Str");
    sb.append("String_Node_Str");
    if (collection == null)     sb.append("String_Node_Str");
    sb.append("String_Node_Str").append(firstOption).append("String_Node_Str");
    for (    Collection coll : collections) {
      sb.append("String_Node_Str").append(coll.getID()).append("String_Node_Str");
      if (collection == coll.getID().toString()) {
        sb.append("String_Node_Str");
      }
      sb.append("String_Node_Str").append(CollectionDropDown.collectionPath(coll)).append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    out.print(sb.toString());
  }
 catch (  IOException e) {
    throw new JspException(e);
  }
catch (  SQLException e) {
    throw new JspException(e);
  }
  return SKIP_BODY;
}

Fixed version (ground truth):
public int doStartTag() throws JspException {
  JspWriter out=pageContext.getOut();
  StringBuffer sb=new StringBuffer();
  try {
    HttpServletRequest hrq=(HttpServletRequest)pageContext.getRequest();
    Context context=UIUtil.obtainContext(hrq);
    List<Collection> collections=(List<Collection>)hrq.getAttribute("String_Node_Str");
    sb.append("String_Node_Str");
    if (name != null) {
      sb.append("String_Node_Str").append(name).append("String_Node_Str");
    }
    if (klass != null) {
      sb.append("String_Node_Str").append(klass).append("String_Node_Str");
    }
    if (id != null) {
      sb.append("String_Node_Str").append(id).append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    ResourceBundle msgs=ResourceBundle.getBundle("String_Node_Str",context.getCurrentLocale());
    String firstOption=msgs.getString("String_Node_Str");
    sb.append("String_Node_Str");
    if (collection == null)     sb.append("String_Node_Str");
    sb.append("String_Node_Str").append(firstOption).append("String_Node_Str");
    for (    Collection coll : collections) {
      sb.append("String_Node_Str").append(coll.getID()).append("String_Node_Str");
      if (collection.equals(coll.getID().toString())) {
        sb.append("String_Node_Str");
      }
      sb.append("String_Node_Str").append(CollectionDropDown.collectionPath(coll)).append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    out.print(sb.toString());
  }
 catch (  IOException e) {
    throw new JspException(e);
  }
catch (  SQLException e) {
    throw new JspException(e);
  }
  return SKIP_BODY;
}