public virtual void TestIntermediateClose() { Directory dir = NewDirectory(); // Test can deadlock if we use SMS: IConcurrentMergeScheduler scheduler; #if !FEATURE_CONCURRENTMERGESCHEDULER scheduler = new TaskMergeScheduler(); #else scheduler = new ConcurrentMergeScheduler(); #endif IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMergeScheduler(scheduler)); writer.AddDocument(new Document()); writer.Commit(); CountdownEvent awaitEnterWarm = new CountdownEvent(1); CountdownEvent awaitClose = new CountdownEvent(1); AtomicBoolean triedReopen = new AtomicBoolean(false); //TaskScheduler es = Random().NextBoolean() ? null : Executors.newCachedThreadPool(new NamedThreadFactory("testIntermediateClose")); TaskScheduler es = Random().NextBoolean() ? null : TaskScheduler.Default; SearcherFactory factory = new SearcherFactoryAnonymousInnerClassHelper2(this, awaitEnterWarm, awaitClose, triedReopen, es); SearcherManager searcherManager = Random().NextBoolean() ? new SearcherManager(dir, factory) : new SearcherManager(writer, Random().NextBoolean(), factory); if (VERBOSE) { Console.WriteLine("sm created"); } IndexSearcher searcher = searcherManager.Acquire(); try { assertEquals(1, searcher.IndexReader.NumDocs); } finally { searcherManager.Release(searcher); } writer.AddDocument(new Document()); writer.Commit(); AtomicBoolean success = new AtomicBoolean(false); Exception[] exc = new Exception[1]; ThreadClass thread = new ThreadClass(() => new RunnableAnonymousInnerClassHelper(this, triedReopen, searcherManager, success, exc).Run()); thread.Start(); if (VERBOSE) { Console.WriteLine("THREAD started"); } awaitEnterWarm.Wait(); if (VERBOSE) { Console.WriteLine("NOW call close"); } searcherManager.Dispose(); awaitClose.Signal(); thread.Join(); try { searcherManager.Acquire(); fail("already closed"); } #pragma warning disable 168 catch (ObjectDisposedException ex) #pragma warning restore 168 { // expected } assertFalse(success.Get()); assertTrue(triedReopen.Get()); assertNull("" + exc[0], exc[0]); writer.Dispose(); dir.Dispose(); //if (es != null) //{ // es.shutdown(); // es.awaitTermination(1, TimeUnit.SECONDS); //} }