Program: 91851
Project: 91851
Buggy source:
/** 
 * Checks if the user has permissions to execute opcontrol as root without providing password and if opcontrol exists in the indicated path
 * @param project The project to be profiled
 * @return true if the user has sudo permission to run opcontrol, false otherwise
 * @throws OpcontrolException if opcontrol not installed
 * @since 1.1
 */
@Override public boolean hasPermissions(IProject project) throws OpcontrolException {
  String linuxtoolsPath=LinuxtoolsPathProperty.getInstance().getLinuxtoolsPath(project);
  try {
    String opcontrolPath=null;
    if (linuxtoolsPath.equals("String_Node_Str")) {
      if (!isInstalled()) {
        throw new OpcontrolException(OprofileCorePlugin.createErrorStatus("String_Node_Str",null));
      }
 else {
        return true;
      }
    }
 else     if (linuxtoolsPath.endsWith("String_Node_Str")) {
      opcontrolPath=linuxtoolsPath + "String_Node_Str";
    }
 else {
      opcontrolPath=linuxtoolsPath + "String_Node_Str";
    }
    final Process p=RuntimeProcessFactory.getFactory().exec("String_Node_Str",project);
    final StringBuffer buffer=new StringBuffer();
    if (p == null) {
      return false;
    }
    Thread t=new Thread(){
      @Override public void run(){
        try {
          BufferedReader input=new BufferedReader(new InputStreamReader(p.getInputStream()));
          String s=null;
          while ((s=input.readLine()) != null) {
            buffer.append(s);
            buffer.append('\n');
          }
          p.waitFor();
          p.destroy();
        }
 catch (        InterruptedException e) {
          e.printStackTrace();
        }
catch (        IOException e) {
          e.printStackTrace();
        }
      }
    }
;
    t.start();
    t.join(SUDO_TIMEOUT);
    String[] sudoLines=buffer.toString().split("String_Node_Str");
    for (    String s : sudoLines) {
      if (s.contains(opcontrolPath) && s.contains("String_Node_Str")) {
        return true;
      }
    }
    System.out.println(buffer.toString());
  }
 catch (  IOException e) {
    e.printStackTrace();
    return false;
  }
catch (  InterruptedException e) {
    e.printStackTrace();
  }
  return false;
}

Fixed version (ground truth):
/** 
 * Checks if the user has permissions to execute opcontrol as root without providing password and if opcontrol exists in the indicated path
 * @param project The project to be profiled
 * @return true if the user has sudo permission to run opcontrol, false otherwise
 * @throws OpcontrolException if opcontrol not installed
 * @since 1.1
 */
@Override public boolean hasPermissions(IProject project) throws OpcontrolException {
  String linuxtoolsPath=LinuxtoolsPathProperty.getInstance().getLinuxtoolsPath(project);
  try {
    String opcontrolPath=null;
    if (linuxtoolsPath.isEmpty()) {
      if (!isInstalled()) {
        throw new OpcontrolException(OprofileCorePlugin.createErrorStatus("String_Node_Str",null));
      }
 else {
        return true;
      }
    }
 else     if (linuxtoolsPath.endsWith("String_Node_Str")) {
      opcontrolPath=linuxtoolsPath + "String_Node_Str";
    }
 else {
      opcontrolPath=linuxtoolsPath + "String_Node_Str";
    }
    final Process p=RuntimeProcessFactory.getFactory().exec("String_Node_Str",project);
    final StringBuffer buffer=new StringBuffer();
    if (p == null) {
      return false;
    }
    Thread t=new Thread(){
      @Override public void run(){
        try {
          BufferedReader input=new BufferedReader(new InputStreamReader(p.getInputStream()));
          String s=null;
          while ((s=input.readLine()) != null) {
            buffer.append(s);
            buffer.append('\n');
          }
          p.waitFor();
          p.destroy();
        }
 catch (        InterruptedException e) {
          e.printStackTrace();
        }
catch (        IOException e) {
          e.printStackTrace();
        }
      }
    }
;
    t.start();
    t.join(SUDO_TIMEOUT);
    String[] sudoLines=buffer.toString().split("String_Node_Str");
    for (    String s : sudoLines) {
      if (s.contains(opcontrolPath) && s.contains("String_Node_Str")) {
        return true;
      }
    }
    System.out.println(buffer.toString());
  }
 catch (  IOException e) {
    e.printStackTrace();
    return false;
  }
catch (  InterruptedException e) {
    e.printStackTrace();
  }
  return false;
}