implement MDW.Sync()
implement IW.finishCommit()
implement readerPool.dropAll()
implement MDW.mustSync()
implement DW.preUpdate()
implement DWFC.obtainAndLock()
implement TestUtil.checkIndex()
implement MockIndexOutputWrapper.WriteBytes()
implement DW.ensureInitialized()
implement MDW.close(0)
implement FieldInfosBuilder constructor
implement CheckIndex constructor
implement IW.newSegmentName()
implement IW.assertFileExists()
implement CheckIndex
separate dwpt
implement BufferedIndexOutput.WriteBytes()
implement DocState ctor
implement IndexingChain related interfaces
implement TermsHash ctor