code: public void execute() throws IOException
     {
        makePerformed();
  
        locks = new ValueFileLock[files.length];
        for (int i = 0; i < files.length; i++)
        {
           ValueFileLock fl = new ValueFileLock(files[i]);
           fl.lock();
           locks[i] = fl;
        }
     }
docs: {@inheritDoc}