Program: 168151
Project: 168151
Buggy source:
private boolean canItProceed(){
  form.getMessageManager().removeAllMessages();
  if (crawlSearchResultsButton.getSelection()) {
    String title=titleText.getText();
    String author=authorText.getText();
    String url=siteText.getText();
    String linkId=linkText.getText();
    String text=queryText.getText();
    String[] temp=subreddits.getText().split("String_Node_Str");
    for (    String s : temp)     content.add(s);
    if (title.isEmpty() && author.isEmpty() && url.isEmpty()&& linkId.isEmpty()&& content.size() == 0) {
      if (text.isEmpty()) {
        form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
        return false;
      }
    }
    form.getMessageManager().removeMessage("String_Node_Str");
  }
  try {
    int linksLimit=Integer.parseInt(numLinksText.getText());
    if (linksLimit < 0) {
      form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
      return false;
    }
 else     form.getMessageManager().removeMessage("String_Node_Str");
  }
 catch (  Exception e) {
    form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
    return false;
  }
  try {
    int commentsLimit=Integer.parseInt(numCommentsText.getText());
    if (commentsLimit < 0) {
      form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
      return false;
    }
 else     form.getMessageManager().removeMessage("String_Node_Str");
  }
 catch (  Exception e) {
    form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
    return false;
  }
  String message=OutputPathValidation.getInstance().validateOutputDirectory(outputLayout.getOutputLabel().getText(),"String_Node_Str");
  if (message != null) {
    message=outputLayout.getOutputLabel().getText() + "String_Node_Str" + message;
    form.getMessageManager().addMessage("String_Node_Str",message,null,IMessageProvider.ERROR);
    return false;
  }
 else {
    form.getMessageManager().removeMessage("String_Node_Str");
  }
  return true;
}

Fixed version (ground truth):
private boolean canItProceed(){
  form.getMessageManager().removeAllMessages();
  if (crawlSearchResultsButton.getSelection()) {
    String title=titleText.getText();
    String author=authorText.getText();
    String url=siteText.getText();
    String linkId=linkText.getText();
    String text=queryText.getText();
    String[] temp=subreddits.getText().split("String_Node_Str");
    content.clear();
    for (    String s : temp)     content.add(s);
    if (title.isEmpty() && author.isEmpty() && url.isEmpty()&& linkId.isEmpty()&& content.size() == 0) {
      if (text.isEmpty()) {
        form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
        return false;
      }
    }
    form.getMessageManager().removeMessage("String_Node_Str");
  }
  try {
    int linksLimit=Integer.parseInt(numLinksText.getText());
    if (linksLimit < 0) {
      form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
      return false;
    }
 else     form.getMessageManager().removeMessage("String_Node_Str");
  }
 catch (  Exception e) {
    form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
    return false;
  }
  try {
    int commentsLimit=Integer.parseInt(numCommentsText.getText());
    if (commentsLimit < 0) {
      form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
      return false;
    }
 else     form.getMessageManager().removeMessage("String_Node_Str");
  }
 catch (  Exception e) {
    form.getMessageManager().addMessage("String_Node_Str","String_Node_Str",null,IMessageProvider.ERROR);
    return false;
  }
  String message=OutputPathValidation.getInstance().validateOutputDirectory(outputLayout.getOutputLabel().getText(),"String_Node_Str");
  if (message != null) {
    message=outputLayout.getOutputLabel().getText() + "String_Node_Str" + message;
    form.getMessageManager().addMessage("String_Node_Str",message,null,IMessageProvider.ERROR);
    return false;
  }
 else {
    form.getMessageManager().removeMessage("String_Node_Str");
  }
  return true;
}