 DiskLuceneIndexDataLoader.loadFromIndex throw org.apache.lucene.store.AlreadyClosedException: this Directory is closed after  use  OptimizeType.FULL 

i found that zoie disk index did not merge  index unless use  OptimizeType.FULL  when  DiskLuceneIndexDataLoader loadFromIndex from ramindex. but  after use OptimizeType.FULL , swap   SearchIndexManager  staus from working to sleep, the lockAndSwapMem method did not change the _mem to new mem , because the oldDiskReader  == diskIndexReader
.
