JDK 9 RFR of JDK-8143097: Test java/net/ipv6tests/UdpTest.java fails (original) (raw)

Amy Lu amy.lu at oracle.com
Wed Nov 2 09:43:21 UTC 2016

Please reviewthe patch for java/net/ipv6tests/UdpTest.java

bug: https://bugs.openjdk.java.net/browse/JDK-8143097 webrev: http://cr.openjdk.java.net/~amlu/8143097/webrev.00/

This test fails intermittently in a test scenario for checking DatagramSocket (with SO_TIMEOUT enabled) 'receive'works even after a delay (but within the specified timeout):

120 static void test2 () throws Exception { 121 s1 = new DatagramSocket (); ...... 151 s1.setSoTimeout(10000); 152 runAfter (2000, new Runnable () { <<<< --- run after the given time (2000) has elapsed 153 public void run () { ...... 156 s.send (p); ...... 158 } 159 }); 160 t1 = System.currentTimeMillis(); 161 s1.receive (new DatagramPacket (new byte [128], 128)); <<<< ---receive should works here 162 checkTime (System.currentTimeMillis() - t1, 4000);

The final checkTime method is for checking the time got (System.currentTimeMillis() - t1) is equal to (with 50% tolerance) the time expected (4000). This assumption is not correct. Test should check that the time got (System.currentTimeMillis() - t1) is between 2000 (the given delay) and 10000 (the given timeout).

Thanks, Amy

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