ThreadLocalRandom initialization causes sun/net/www/protocol/http/B6369510.java failed intermittently. This due to the initial seed creation using NetworkIntereface.getNetworkInterfaces() for its random number creation. The NetworkIntereface.getNetworkInterfaces() call flow can fail intermittently
due to GetAdaptersAddresses failing. Further discussion details below.

  This happened once in JDK9/b38 same binaries runs on Windows. It is probably related with teredo pseudo interface, which may change timely.

The error is like:
----------System.err:(31/2081)----------
java.lang.Error: IP Helper Library GetAdaptersAddresses function failed
at java.net.NetworkInterface.getAll(Native Method)
at java.net.NetworkInterface.getNetworkInterfaces(NetworkInterface.java:343)
at java.util.concurrent.ThreadLocalRandom.initialSeed(ThreadLocalRandom.java:153)
at java.util.concurrent.ThreadLocalRandom.<clinit>(ThreadLocalRandom.java:137)
at java.util.concurrent.ConcurrentSkipListMap.doPut(ConcurrentSkipListMap.java:857)
at java.util.concurrent.ConcurrentSkipListMap.putIfAbsent(ConcurrentSkipListMap.java:1962)
at java.util.concurrent.ConcurrentSkipListSet.add(ConcurrentSkipListSet.java:241)
at java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:816)
at java.net.InetAddress.getAllByName0(InetAddress.java:1249)
at java.net.InetAddress.getAllByName0(InetAddress.java:1169)
at java.net.InetAddress.getHostFromNameService(InetAddress.java:615)
at java.net.InetAddress.getHostName(InetAddress.java:540)
at java.net.InetAddress.getHostName(InetAddress.java:512)
at java.net.InetSocketAddress$InetSocketAddressHolder.getHostName(InetSocketAddress.java:82)
at java.net.InetSocketAddress$InetSocketAddressHolder.access$600(InetSocketAddress.java:56)
at java.net.InetSocketAddress.getHostName(InetSocketAddress.java:345)
at B6369510.doClient(B6369510.java:63)
at B6369510.<init>(B6369510.java:52)
at B6369510.main(B6369510.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:745)