code: private void buildLongCopyStack(List<StackManipulation> stack, int iterations) throws NoSuchFieldException, NoSuchMethodException {
      final Method getLongMethod = Unsafe.class.getMethod("getLong", long.class);
      final Method putLongMethod = Unsafe.class.getMethod("putLong", Object.class, long.class, long.class);
  
      buildCopyStack(stack, iterations, getLongMethod, putLongMethod, COPY_STRIDE);
    }
docs: Creates iterations copies of the equivalent java code
  <pre>
  unsafe.putLong(dest, destOffset, unsafe.getLong(src));
  destOffset += COPY_STRIDE; src += COPY_STRIDE
  </pre>
  
  @param iterations
  @throws NoSuchFieldException
  @throws NoSuchMethodException