#fixed code
                              private boolean isClang() {
    final String command = getCommand();
    if (command == null) {
      return false;
    }
    if (command.startsWith("clang")) {
      return true;
    }
    if (!GPP_COMMAND.equals(command)) {
      return false;
    }
    final String[] cmd = {
        command, "--version"
    };
    final String[] cmdout = CaptureStreamHandler.execute(cmd).getStdout();
    return cmdout != null && cmdout.length > 0 && cmdout[0].contains("(clang-");
  }
#vulnerable code 
                              private boolean isClang() {
    final String command = getCommand();
    if (command == null) {
      return false;
    }
    if (command.startsWith("clang")) {
      return true;
    }
    if (!GPP_COMMAND.equals(command)) {
      return false;
    }
    final String[] cmd = {
        command, "--version"
    };
    final String[] cmdout = CaptureStreamHandler.execute(cmd).getStdout();
    return cmdout.length > 0 && cmdout[0].contains("(clang-");
  } 
                            #location 16 
                            #vulnerability type NULL_DEREFERENCE