private void removeChunk(final MemoryChunk chunk){
  Preconditions.checkNotNull(chunk,"Error: Memory chunk can't be null");
  m_chunks.remove(chunk);
}

private void removeChunk ( final MemoryChunk chunk ) { Preconditions . checkNotNull ( chunk , "Error: Memory chunk can't be null" ) ; m_chunks . remove ( chunk ) ; }
removes a memory chunk from memory .
