JDK 9 RFR of JDK-8156512: Mark several tests from java/nio as intermittently failing

[Amy Lu]

java/nio/file/WatchService/DeleteInterference.java
java/nio/channels/AsynchronousSocketChannel/Basic.java
java/nio/file/FileSystem/Basic.java
java/nio/channels/FileChannel/InterruptMapDeadlock.java

Above nio tests are known to fail intermittently. This patch is to mark 
the test accordingly with keyword 'intermittent’ until issue resolved.

bug: https://bugs.openjdk.java.net/browse/JDK-8156512
webrev: http://cr.openjdk.java.net/~amlu/8156512/webrev.00/

Thanks,
Amy

--- old/test/java/nio/channels/AsynchronousSocketChannel/Basic.java	2016-05-09 17:15:14.000000000 +0800
+++ new/test/java/nio/channels/AsynchronousSocketChannel/Basic.java	2016-05-09 17:15:14.000000000 +0800
@@ -25,7 +25,7 @@
   * @bug 4607272 6842687 6878369 6944810 7023403
   * @summary Unit test for AsynchronousSocketChannel
   * @run main Basic -skipSlowConnectTest
- * @key randomness
+ * @key randomness intermittent
   */
  
  import java.nio.ByteBuffer;
--- old/test/java/nio/channels/FileChannel/InterruptMapDeadlock.java	2016-05-09 17:15:15.000000000 +0800
+++ new/test/java/nio/channels/FileChannel/InterruptMapDeadlock.java	2016-05-09 17:15:14.000000000 +0800
@@ -1,5 +1,5 @@
  /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
@@ -23,6 +23,7 @@
  
  /* @test
   * @bug 8024833
+ * @key intermittent
   * @summary Tests interruption of threads mapping sections of a file channel in
   *   an attempt to deadlock due to nesting of begin calls.
   */
--- old/test/java/nio/file/FileSystem/Basic.java	2016-05-09 17:15:15.000000000 +0800
+++ new/test/java/nio/file/FileSystem/Basic.java	2016-05-09 17:15:15.000000000 +0800
@@ -1,5 +1,5 @@
  /*
- * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
@@ -23,6 +23,7 @@
  
  /* @test
   * @bug 4313887 6838333 8132497
+ * @key intermittent
   * @summary Unit test for java.nio.file.FileSystem
   * @library .. /lib/testlibrary
   * @build jdk.testlibrary.FileUtils
--- old/test/java/nio/file/WatchService/DeleteInterference.java	2016-05-09 17:15:16.000000000 +0800
+++ new/test/java/nio/file/WatchService/DeleteInterference.java	2016-05-09 17:15:16.000000000 +0800
@@ -20,6 +20,7 @@
  /**
   * @test
   * @bug 8153925
+ * @key intermittent
   * @summary Tests potential interference between a thread creating and closing
   *     a WatchService with another thread that is deleting and re-creating the
   *     directory at around the same time. This scenario tickled a timing bug