Program: 9320
Project: 9320
Buggy source:
public static WeaverOption parse(String options,ClassLoader laoder){
  List flags=LangUtil.anySplit(options,"String_Node_Str");
  Collections.reverse(flags);
  WeaverOption weaverOption=new WeaverOption();
  weaverOption.messageHandler=new DefaultMessageHandler();
  for (Iterator iterator=flags.iterator(); iterator.hasNext(); ) {
    String arg=(String)iterator.next();
    if (arg.startsWith(OPTIONVALUED_messageHolder)) {
      if (arg.length() > OPTIONVALUED_messageHolder.length()) {
        String handlerClass=arg.substring(OPTIONVALUED_messageHolder.length()).trim();
        try {
          Class handler=Class.forName(handlerClass,false,laoder);
          weaverOption.messageHandler=((IMessageHandler)handler.newInstance());
        }
 catch (        Throwable t) {
          weaverOption.messageHandler.handleMessage(new Message("String_Node_Str" + handlerClass,IMessage.ERROR,t,null));
        }
      }
    }
  }
  for (Iterator iterator=flags.iterator(); iterator.hasNext(); ) {
    String arg=(String)iterator.next();
    if (arg.equals(OPTION_15)) {
      weaverOption.java5=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_lazyTjp)) {
      weaverOption.lazyTjp=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_noinline)) {
      weaverOption.noInline=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_noWarn) || arg.equalsIgnoreCase(OPTION_noWarnNone)) {
      weaverOption.noWarn=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_proceedOnError)) {
      weaverOption.proceedOnError=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_reweavable)) {
      weaverOption.reWeavable=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_showWeaveInfo)) {
      weaverOption.showWeaveInfo=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_verbose)) {
      weaverOption.verbose=true;
    }
 else     if (arg.startsWith(OPTIONVALUED_messageHolder)) {
      ;
    }
 else {
      weaverOption.messageHandler.handleMessage(new Message("String_Node_Str" + arg + "String_Node_Str",IMessage.WARNING,null,null));
    }
  }
  if (weaverOption.noWarn) {
    weaverOption.messageHandler.dontIgnore(IMessage.WARNING);
  }
  if (weaverOption.verbose) {
    weaverOption.messageHandler.dontIgnore(IMessage.DEBUG);
  }
  if (weaverOption.showWeaveInfo) {
    weaverOption.messageHandler.dontIgnore(IMessage.WEAVEINFO);
  }
  return weaverOption;
}

Fixed version (ground truth):
public static WeaverOption parse(String options,ClassLoader laoder){
  if (LangUtil.isEmpty(options)) {
    return new WeaverOption();
  }
  List flags=LangUtil.anySplit(options,"String_Node_Str");
  Collections.reverse(flags);
  WeaverOption weaverOption=new WeaverOption();
  for (Iterator iterator=flags.iterator(); iterator.hasNext(); ) {
    String arg=(String)iterator.next();
    if (arg.startsWith(OPTIONVALUED_messageHolder)) {
      if (arg.length() > OPTIONVALUED_messageHolder.length()) {
        String handlerClass=arg.substring(OPTIONVALUED_messageHolder.length()).trim();
        try {
          Class handler=Class.forName(handlerClass,false,laoder);
          weaverOption.messageHandler=((IMessageHandler)handler.newInstance());
        }
 catch (        Throwable t) {
          weaverOption.messageHandler.handleMessage(new Message("String_Node_Str" + handlerClass,IMessage.ERROR,t,null));
        }
      }
    }
  }
  for (Iterator iterator=flags.iterator(); iterator.hasNext(); ) {
    String arg=(String)iterator.next();
    if (arg.equals(OPTION_15)) {
      weaverOption.java5=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_lazyTjp)) {
      weaverOption.lazyTjp=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_noinline)) {
      weaverOption.noInline=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_noWarn) || arg.equalsIgnoreCase(OPTION_noWarnNone)) {
      weaverOption.noWarn=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_proceedOnError)) {
      weaverOption.proceedOnError=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_reweavable)) {
      weaverOption.reWeavable=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_showWeaveInfo)) {
      weaverOption.showWeaveInfo=true;
    }
 else     if (arg.equalsIgnoreCase(OPTION_verbose)) {
      weaverOption.verbose=true;
    }
 else     if (arg.startsWith(OPTIONVALUED_messageHolder)) {
      ;
    }
 else {
      weaverOption.messageHandler.handleMessage(new Message("String_Node_Str" + arg + "String_Node_Str",IMessage.WARNING,null,null));
    }
  }
  if (weaverOption.noWarn) {
    weaverOption.messageHandler.dontIgnore(IMessage.WARNING);
  }
  if (weaverOption.verbose) {
    weaverOption.messageHandler.dontIgnore(IMessage.DEBUG);
  }
  if (weaverOption.showWeaveInfo) {
    weaverOption.messageHandler.dontIgnore(IMessage.WEAVEINFO);
  }
  return weaverOption;
}